======================================
| [   11.285538][  T225] softirqs last disabled at (15924): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   11.285540][  T225] Preemption disabled at:
| [   11.285541][  T225] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.285549][  T225] Tainted: [W]=WARN
[   11.285550][  T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.285552][  T225] Call Trace:
[   11.285553][  T225]  <TASK>
[   11.285555][  T225]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.285561][  T225]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.285563][  T225]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.285567][  T225]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.285571][  T225]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.285575][  T225]  __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))
[   11.285577][  T225]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.285584][  T225]  ? 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)
[   11.285587][  T225]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.285591][  T225]  put_chars (drivers/char/virtio_console.c:1176)
[   11.285593][  T225]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.285599][  T225]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.285607][  T225]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.285610][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.285615][  T225]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.285618][  T225]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.285620][  T225]  ? 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))
[   11.285623][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285626][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.285630][  T225]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.285634][  T225]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.285636][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.285641][  T225]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.285644][  T225]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.285646][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285647][  T225]  ? 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)
[   11.285651][  T225]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.285653][  T225]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.285655][  T225]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.285658][  T225]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.285660][  T225]  ? save_trace (kernel/locking/lockdep.c:589)
[   11.285664][  T225]  _printk (kernel/printk/printk.c:2504)
[   11.285668][  T225]  ? snapshot_read.cold (user.c:?)
[   11.285671][  T225]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.285673][  T225]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.285677][  T225]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.285680][  T225]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.285682][  T225]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.285685][  T225]  ? netdev_notice (net/core/dev.c:13194)
[   11.285687][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.285690][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.285693][  T225]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.285696][  T225]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.285698][  T225]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   11.285700][  T225]  ? register_netdev (net/core/dev.c:11618)
[   11.285702][  T225]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   11.285707][  T225]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   11.285709][  T225]  ? __kernel_text_address (kernel/extable.c:79)
[   11.285712][  T225]  ? write_profile (profile.c:?)
[   11.285716][  T225]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.285721][  T225]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.285724][  T225]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.285727][  T225]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.285728][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.285731][  T225]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.285734][  T225]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.285736][  T225]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.285738][  T225]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.285740][  T225]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.285742][  T225]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.285743][  T225]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.285744][  T225]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.285747][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.285749][  T225]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.285751][  T225]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.285755][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.285757][  T225]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.285760][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285761][  T225]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.285763][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285769][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285771][  T225]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.285773][  T225]  ? __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)
[   11.285776][  T225]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.285778][  T225]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.285781][  T225]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.285782][  T225]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.285787][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285789][  T225]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.285795][  T225]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.285800][  T225]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.285802][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.285806][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.285808][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.285810][  T225]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.285812][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.285815][  T225]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.285817][  T225]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.285820][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.285822][  T225]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.285826][  T225]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.285828][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.285831][  T225]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.285835][  T225]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.285837][  T225]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.285844][  T225]  ? 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))
[   11.285846][  T225]  ? 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))
[   11.285850][  T225]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.285854][  T225]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.285857][  T225]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.285861][  T225]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.285865][  T225]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.285868][  T225]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.285870][  T225]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.285875][  T225]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.285878][  T225]  ____sys_sendmsg (net/socket.c:2713)
[   11.285880][  T225]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.285883][  T225]  ? sock_write_iter (net/socket.c:1269)
[   11.285884][  T225]  ? move_addr_to_kernel (net/socket.c:258)
[   11.285891][  T225]  ___sys_sendmsg (net/socket.c:2767)
[   11.285896][  T225]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.285912][  T225]  __sys_sendmsg (net/socket.c:2799)
[   11.285915][  T225]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.285921][  T225]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.285924][  T225]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.285927][  T225]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.285930][  T225]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.285932][  T225] RIP: 0033:0x7f40a3aa154e
[   11.285936][  T225] 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
[   11.285937][  T225] RSP: 002b:00007fff49d26ff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.285940][  T225] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f40a3aa154e
[   11.285942][  T225] RDX: 0000000000000000 RSI: 00007fff49d270a0 RDI: 0000000000000005
[   11.285942][  T225] RBP: 00007fff49d27000 R08: 0000000000000000 R09: 0000000000000000
[   11.285943][  T225] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91832c
[   11.285944][  T225] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff49d27760
| [   12.376399][  T278] softirqs last disabled at (16950): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.376401][  T278] Preemption disabled at:
| [   12.376402][  T278] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.376411][  T278] Tainted: [W]=WARN
[   12.376412][  T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.376413][  T278] Call Trace:
[   12.376415][  T278]  <TASK>
[   12.376416][  T278]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.376422][  T278]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.376424][  T278]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.376429][  T278]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.376433][  T278]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.376437][  T278]  __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))
[   12.376439][  T278]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.376446][  T278]  ? 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)
[   12.376449][  T278]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.376453][  T278]  put_chars (drivers/char/virtio_console.c:1176)
[   12.376455][  T278]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.376456][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.376460][  T278]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.376465][  T278]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.376473][  T278]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.376476][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376478][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.376484][  T278]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.376488][  T278]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.376490][  T278]  ? 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))
[   12.376493][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376495][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.376499][  T278]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.376503][  T278]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.376505][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.376510][  T278]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.376513][  T278]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.376515][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376517][  T278]  ? 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)
[   12.376521][  T278]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.376523][  T278]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.376525][  T278]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.376528][  T278]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.376530][  T278]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.376532][  T278]  ? __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)
[   12.376535][  T278]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.376538][  T278]  _printk (kernel/printk/printk.c:2504)
[   12.376542][  T278]  ? snapshot_read.cold (user.c:?)
[   12.376545][  T278]  ? new_nbp (./include/linux/netdevice.h:2866 ./include/net/netdev_lock.h:48 net/bridge/br_if.c:445)
[   12.376549][  T278]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   12.376553][  T278]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   12.376557][  T278]  br_init_port (net/bridge/br_stp_if.c:39)
[   12.376560][  T278]  new_nbp (net/bridge/br_if.c:449)
[   12.376564][  T278]  br_add_if (net/bridge/br_if.c:592)
[   12.376566][  T278]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   12.376567][  T278]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.376574][  T278]  do_set_master (net/core/rtnetlink.c:3071)
[   12.376578][  T278]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.376582][  T278]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.376585][  T278]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.376586][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.376589][  T278]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.376592][  T278]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.376594][  T278]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.376596][  T278]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.376598][  T278]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.376601][  T278]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.376602][  T278]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.376603][  T278]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.376605][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.376607][  T278]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.376610][  T278]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.376614][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.376616][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.376619][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376620][  T278]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.376622][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376623][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376625][  T278]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.376627][  T278]  ? __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)
[   12.376628][  T278]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.376630][  T278]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.376633][  T278]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.376635][  T278]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.376639][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376642][  T278]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.376647][  T278]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.376652][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.376654][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.376659][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.376661][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.376663][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.376665][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.376668][  T278]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.376671][  T278]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.376674][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.376675][  T278]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.376679][  T278]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.376681][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.376685][  T278]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.376688][  T278]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.376691][  T278]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.376698][  T278]  ? 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))
[   12.376700][  T278]  ? 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))
[   12.376704][  T278]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.376708][  T278]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.376711][  T278]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.376715][  T278]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.376719][  T278]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.376723][  T278]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.376724][  T278]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.376730][  T278]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.376733][  T278]  ____sys_sendmsg (net/socket.c:2713)
[   12.376735][  T278]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.376737][  T278]  ? sock_write_iter (net/socket.c:1269)
[   12.376739][  T278]  ? move_addr_to_kernel (net/socket.c:258)
[   12.376746][  T278]  ___sys_sendmsg (net/socket.c:2767)
[   12.376749][  T278]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.376765][  T278]  __sys_sendmsg (net/socket.c:2799)
[   12.376774][  T278]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.376781][  T278]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.376784][  T278]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.376787][  T278]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.376790][  T278]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.376792][  T278] RIP: 0033:0x7f64ce71f54e
[   12.376796][  T278] 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
[   12.376797][  T278] RSP: 002b:00007ffead322630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.376800][  T278] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f64ce71f54e
[   12.376802][  T278] RDX: 0000000000000000 RSI: 00007ffead3226e0 RDI: 0000000000000005
[   12.376803][  T278] RBP: 00007ffead322640 R08: 0000000000000000 R09: 0000000000000000
[   12.376803][  T278] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91832d
[   12.376804][  T278] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffead322db0
| [   17.936742][  T292] softirqs last disabled at (20759): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.936745][  T292] Preemption disabled at:
| [   17.936746][  T292] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.936757][  T292] Tainted: [W]=WARN
[   17.936759][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.936761][  T292] Call Trace:
[   17.936763][  T292]  <TASK>
[   17.936765][  T292]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.936772][  T292]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.936775][  T292]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.936781][  T292]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.936787][  T292]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.936800][  T292]  __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))
[   17.936803][  T292]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.936813][  T292]  ? 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)
[   17.936817][  T292]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.936823][  T292]  put_chars (drivers/char/virtio_console.c:1176)
[   17.936825][  T292]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   17.936829][  T292]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.936834][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.936839][  T292]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.936847][  T292]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.936852][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.936854][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.936863][  T292]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.936865][  T292]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.936871][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.936874][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.936881][  T292]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.936888][  T292]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.936890][  T292]  ? 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))
[   17.936896][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.936899][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.936906][  T292]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.936913][  T292]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.936916][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.936925][  T292]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.936929][  T292]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.936932][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.936935][  T292]  ? 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)
[   17.936941][  T292]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.936943][  T292]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.936948][  T292]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.936954][  T292]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.936963][  T292]  ? gact_cleanup_module (net/sched/act_gact.c:192) act_gact
[   17.936967][  T292]  _printk (kernel/printk/printk.c:2504)
[   17.936972][  T292]  ? snapshot_read.cold (user.c:?)
[   17.936983][  T292]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   17.936989][  T292] gact_init_module (net/sched/act_gact.c:180) act_gact
[   17.936992][  T292]  do_one_initcall (init/main.c:1357)
[   17.936997][  T292]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   17.937005][  T292]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   17.937008][  T292]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   17.937017][  T292]  do_init_module (kernel/module/main.c:3117)
[   17.937022][  T292]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.937028][  T292]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   17.937032][  T292]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   17.937039][  T292]  load_module (kernel/module/main.c:3593)
[   17.937048][  T292]  ? security_kernel_post_read_file (security/security.c:2997 (discriminator 11))
[   17.937055][  T292]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   17.937061][  T292]  ? __ia32_sys_fsconfig (??:?)
[   17.937066][  T292]  ? backing_file_read_iter (fs/backing-file.c:211)
[   17.937071][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.937077][  T292]  init_module_from_file (kernel/module/main.c:3790)
[   17.937082][  T292]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   17.937096][  T292]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   17.937102][  T292]  ? 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)
[   17.937107][  T292]  idempotent_init_module (kernel/module/main.c:3802)
[   17.937111][  T292]  ? init_module_from_file (kernel/module/main.c:3791)
[   17.937120][  T292]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   17.937123][  T292]  ? __x64_sys_pread64 (fs/read_write.c:764 fs/read_write.c:772 fs/read_write.c:769 fs/read_write.c:769)
[   17.937133][  T292]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   17.937139][  T292]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.937149][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.937154][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.937158][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.937162][  T292] RIP: 0033:0x7f37881dc37d
[   17.937170][  T292] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   17.937173][  T292] RSP: 002b:00007fffc2ff6948 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   17.937177][  T292] RAX: ffffffffffffffda RBX: 00005591d068a810 RCX: 00007f37881dc37d
[   17.937179][  T292] RDX: 0000000000000000 RSI: 00005591b39acffd RDI: 0000000000000000
[   17.937181][  T292] RBP: 00007fffc2ff69e0 R08: 0000000000000000 R09: 0000000000000000
[   17.937182][  T292] R10: 0000000000000000 R11: 0000000000000246 R12: 00005591b39acffd
[   17.937184][  T292] R13: 00005591d068a960 R14: 0000000000040000 R15: 0000000000000000
| [   19.086260][   T36] softirqs last disabled at (63390): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   19.086263][   T36] Preemption disabled at:
| [   19.086264][   T36] 0x0
| [   19.086274][   T36] Tainted: [W]=WARN
[   19.086275][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.086276][   T36] Workqueue: events_unbound linkwatch_event
[   19.086280][   T36] Call Trace:
[   19.086281][   T36]  <TASK>
[   19.086282][   T36]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.086289][   T36]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.086294][   T36]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.086298][   T36]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.086303][   T36]  __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))
[   19.086305][   T36]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.086312][   T36]  ? 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)
[   19.086314][   T36]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.086318][   T36]  put_chars (drivers/char/virtio_console.c:1176)
[   19.086321][   T36]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.086324][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.086327][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.086330][   T36]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.086334][   T36]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.086338][   T36]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.086340][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.086341][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.086346][   T36]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.086348][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.086352][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.086357][   T36]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.086361][   T36]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.086363][   T36]  ? 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))
[   19.086366][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.086368][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.086372][   T36]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.086377][   T36]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.086379][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.086385][   T36]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.086388][   T36]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.086389][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.086391][   T36]  ? 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)
[   19.086395][   T36]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.086397][   T36]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.086400][   T36]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.086403][   T36]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.086405][   T36]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   19.086407][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.086409][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.086413][   T36]  _printk (kernel/printk/printk.c:2504)
[   19.086417][   T36]  ? snapshot_read.cold (user.c:?)
[   19.086422][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.086426][   T36]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   19.086431][   T36]  br_init_port (net/bridge/br_stp_if.c:39)
[   19.086434][   T36]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   19.086436][   T36]  br_port_carrier_check (net/bridge/br_if.c:90)
[   19.086440][   T36]  br_device_event (net/bridge/br.c:101)
[   19.086442][   T36]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   19.086445][   T36]  ? packet_sendmsg_spkt (af_packet.c:?)
[   19.086451][   T36]  notifier_call_chain (kernel/notifier.c:85)
[   19.086457][   T36]  netif_state_change (net/core/dev.c:1625)
[   19.086463][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   19.086468][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   19.086470][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   19.086473][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.086476][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.086480][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   19.086486][   T36]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   19.086489][   T36]  process_one_work (kernel/workqueue.c:3387)
[   19.086496][   T36]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   19.086499][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.086507][   T36]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   19.086515][   T36]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   19.086517][   T36]  kthread (kernel/kthread.c:436)
[   19.086519][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.086523][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.086526][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   19.086530][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   19.086534][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   19.086537][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   19.086540][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   20.202335][   T57] softirqs last disabled at (54732): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   20.202338][   T57] Preemption disabled at:
| [   20.202339][   T57] 0x0
| [   20.202350][   T57] Tainted: [W]=WARN
[   20.202351][   T57] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.202353][   T57] Workqueue: events_unbound linkwatch_event
[   20.202357][   T57] Call Trace:
[   20.202358][   T57]  <TASK>
[   20.202360][   T57]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.202367][   T57]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.202371][   T57]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.202375][   T57]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.202380][   T57]  __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))
[   20.202382][   T57]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.202388][   T57]  ? 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)
[   20.202391][   T57]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.202395][   T57]  put_chars (drivers/char/virtio_console.c:1176)
[   20.202398][   T57]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.202401][   T57]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.202404][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.202407][   T57]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.202411][   T57]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.202415][   T57]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.202417][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.202419][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.202423][   T57]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.202425][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.202430][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.202434][   T57]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.202438][   T57]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.202440][   T57]  ? 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))
[   20.202444][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.202446][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.202450][   T57]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.202455][   T57]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.202456][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.202462][   T57]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.202465][   T57]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.202467][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.202468][   T57]  ? 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)
[   20.202472][   T57]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.202474][   T57]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.202477][   T57]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.202480][   T57]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.202484][   T57]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   20.202486][   T57]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.202488][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.202492][   T57]  _printk (kernel/printk/printk.c:2504)
[   20.202496][   T57]  ? snapshot_read.cold (user.c:?)
[   20.202502][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.202506][   T57]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   20.202510][   T57]  br_init_port (net/bridge/br_stp_if.c:39)
[   20.202513][   T57]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   20.202515][   T57]  br_port_carrier_check (net/bridge/br_if.c:90)
[   20.202519][   T57]  br_device_event (net/bridge/br.c:101)
[   20.202521][   T57]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   20.202524][   T57]  ? packet_sendmsg_spkt (af_packet.c:?)
[   20.202530][   T57]  notifier_call_chain (kernel/notifier.c:85)
[   20.202536][   T57]  netif_state_change (net/core/dev.c:1625)
[   20.202541][   T57]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   20.202546][   T57]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   20.202548][   T57]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   20.202551][   T57]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.202554][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.202559][   T57]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   20.202561][   T57]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   20.202564][   T57]  process_one_work (kernel/workqueue.c:3387)
[   20.202575][   T57]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   20.202578][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.202586][   T57]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   20.202590][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   20.202593][   T57]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   20.202595][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   20.202598][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   20.202600][   T57]  kthread (kernel/kthread.c:436)
[   20.202602][   T57]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.202606][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   20.202609][   T57]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.202613][   T57]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   20.202617][   T57]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.202620][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   20.202623][   T57]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.367290][  T400] softirqs last disabled at (22114): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119)
| [   21.367292][  T400] Preemption disabled at:
| [   21.367293][  T400] 0x0
| [   21.367303][  T400] Tainted: [W]=WARN
[   21.367303][  T400] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.367305][  T400] Call Trace:
[   21.367307][  T400]  <TASK>
[   21.367308][  T400]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.367315][  T400]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.367319][  T400]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.367324][  T400]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.367328][  T400]  __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))
[   21.367330][  T400]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.367337][  T400]  ? 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)
[   21.367340][  T400]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.367344][  T400]  put_chars (drivers/char/virtio_console.c:1176)
[   21.367346][  T400]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.367347][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.367351][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.367356][  T400]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.367365][  T400]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.367367][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367369][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.367373][  T400]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.367378][  T400]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.367379][  T400]  ? 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))
[   21.367383][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367384][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.367388][  T400]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.367393][  T400]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.367395][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.367400][  T400]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.367403][  T400]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.367405][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367406][  T400]  ? 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)
[   21.367410][  T400]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.367412][  T400]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.367415][  T400]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.367418][  T400]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.367420][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.367422][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.367427][  T400]  _printk (kernel/printk/printk.c:2504)
[   21.367431][  T400]  ? snapshot_read.cold (user.c:?)
[   21.367436][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.367440][  T400]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.367444][  T400]  br_init_port (net/bridge/br_stp_if.c:39)
[   21.367447][  T400]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   21.367449][  T400]  br_device_event (net/bridge/br.c:120)
[   21.367452][  T400]  ? packet_sendmsg_spkt (af_packet.c:?)
[   21.367454][  T400]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   21.367461][  T400]  notifier_call_chain (kernel/notifier.c:85)
[   21.367467][  T400]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   21.367472][  T400]  ? netif_change_name (net/core/dev.c:1517)
[   21.367476][  T400]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.367479][  T400]  ? write_profile (profile.c:?)
[   21.367487][  T400]  netif_change_flags (net/core/dev.c:9882)
[   21.367491][  T400]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   21.367494][  T400]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.367497][  T400]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.367498][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.367500][  T400]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.367503][  T400]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.367505][  T400]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.367507][  T400]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.367510][  T400]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.367512][  T400]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.367513][  T400]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.367515][  T400]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.367517][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.367519][  T400]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.367522][  T400]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.367526][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.367528][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.367531][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367533][  T400]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.367534][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367535][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367537][  T400]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.367539][  T400]  ? __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)
[   21.367542][  T400]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.367544][  T400]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.367547][  T400]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.367551][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367553][  T400]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.367559][  T400]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.367564][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.367566][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.367571][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.367573][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.367575][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.367577][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.367581][  T400]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.367583][  T400]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.367586][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.367588][  T400]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.367592][  T400]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.367594][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.367598][  T400]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.367600][  T400]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.367603][  T400]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.367609][  T400]  ? 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))
[   21.367612][  T400]  ? 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))
[   21.367616][  T400]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.367620][  T400]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.367623][  T400]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.367627][  T400]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.367631][  T400]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.367635][  T400]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.367637][  T400]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.367642][  T400]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.367645][  T400]  ____sys_sendmsg (net/socket.c:2713)
[   21.367647][  T400]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.367650][  T400]  ? sock_write_iter (net/socket.c:1269)
[   21.367651][  T400]  ? move_addr_to_kernel (net/socket.c:258)
[   21.367659][  T400]  ___sys_sendmsg (net/socket.c:2767)
[   21.367662][  T400]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.367678][  T400]  __sys_sendmsg (net/socket.c:2799)
[   21.367682][  T400]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.367688][  T400]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.367691][  T400]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.367694][  T400]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.367697][  T400]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.367700][  T400] RIP: 0033:0x7f3b0e34d54e
[   21.367702][  T400] 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
[   21.367704][  T400] RSP: 002b:00007ffedfdc09d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.367706][  T400] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3b0e34d54e
[   21.367708][  T400] RDX: 0000000000000000 RSI: 00007ffedfdc0a80 RDI: 0000000000000005
[   21.367709][  T400] RBP: 00007ffedfdc09e0 R08: 0000000000000000 R09: 0000000000000000
[   21.367709][  T400] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918336
[   21.367710][  T400] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedfdc1150
| [   22.484771][   T39] softirqs last disabled at (92196): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   22.484774][   T39] Preemption disabled at:
| [   22.484774][   T39] 0x0
| [   22.484785][   T39] Tainted: [W]=WARN
[   22.484786][   T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.484787][   T39] Workqueue: events_unbound linkwatch_event
[   22.484791][   T39] Call Trace:
[   22.484792][   T39]  <TASK>
[   22.484794][   T39]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.484801][   T39]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.484805][   T39]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.484817][   T39]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.484822][   T39]  __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))
[   22.484824][   T39]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.484831][   T39]  ? 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)
[   22.484834][   T39]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.484838][   T39]  put_chars (drivers/char/virtio_console.c:1176)
[   22.484841][   T39]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.484844][   T39]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.484847][   T39]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.484852][   T39]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.484856][   T39]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.484858][   T39]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.484863][   T39]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.484867][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.484869][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.484874][   T39]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.484878][   T39]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.484880][   T39]  ? 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))
[   22.484883][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.484885][   T39]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.484890][   T39]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.484894][   T39]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.484896][   T39]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.484902][   T39]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.484905][   T39]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.484907][   T39]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.484909][   T39]  ? 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)
[   22.484913][   T39]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.484915][   T39]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.484918][   T39]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.484921][   T39]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.484922][   T39]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.484925][   T39]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.484928][   T39]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.484931][   T39]  _printk (kernel/printk/printk.c:2504)
[   22.484935][   T39]  ? snapshot_read.cold (user.c:?)
[   22.484938][   T39]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   22.484945][   T39]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   22.484950][   T39]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   22.484954][   T39]  br_port_carrier_check (net/bridge/br_if.c:95)
[   22.484960][   T39]  br_device_event (net/bridge/br.c:101)
[   22.484965][   T39]  ? packet_sendmsg_spkt (af_packet.c:?)
[   22.484974][   T39]  notifier_call_chain (kernel/notifier.c:85)
[   22.484981][   T39]  netif_state_change (net/core/dev.c:1625)
[   22.484984][   T39]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   22.484989][   T39]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   22.484993][   T39]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   22.484995][   T39]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   22.484997][   T39]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   22.485000][   T39]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.485003][   T39]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.485008][   T39]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   22.485010][   T39]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   22.485014][   T39]  process_one_work (kernel/workqueue.c:3387)
[   22.485021][   T39]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   22.485024][   T39]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.485033][   T39]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   22.485040][   T39]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   22.485043][   T39]  kthread (kernel/kthread.c:436)
[   22.485045][   T39]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.485048][   T39]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   22.485051][   T39]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.485055][   T39]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   22.485059][   T39]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.485063][   T39]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   22.485066][   T39]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   24.301602][  T491] softirqs last disabled at (19624): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   24.301605][  T491] Preemption disabled at:
| [   24.301605][  T491] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.301614][  T491] Tainted: [W]=WARN
[   24.301615][  T491] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.301617][  T491] Call Trace:
[   24.301618][  T491]  <TASK>
[   24.301620][  T491]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.301626][  T491]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.301628][  T491]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.301632][  T491]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.301636][  T491]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.301641][  T491]  __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))
[   24.301643][  T491]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.301649][  T491]  ? 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)
[   24.301652][  T491]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.301656][  T491]  put_chars (drivers/char/virtio_console.c:1176)
[   24.301658][  T491]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.301665][  T491]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.301673][  T491]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.301676][  T491]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301681][  T491]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.301685][  T491]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.301687][  T491]  ? 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))
[   24.301690][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301693][  T491]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301697][  T491]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.301701][  T491]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.301703][  T491]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301709][  T491]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.301711][  T491]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.301713][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301715][  T491]  ? 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)
[   24.301719][  T491]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.301720][  T491]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.301723][  T491]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.301726][  T491]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.301729][  T491]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   24.301734][  T491]  _printk (kernel/printk/printk.c:2504)
[   24.301738][  T491]  ? snapshot_read.cold (user.c:?)
[   24.301739][  T491]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.301742][  T491]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.301745][  T491]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.301747][  T491]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.301751][  T491]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.301754][  T491]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.301756][  T491]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.301759][  T491]  ? netdev_notice (net/core/dev.c:13194)
[   24.301762][  T491]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.301765][  T491]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.301767][  T491]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.301771][  T491]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.301773][  T491]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   24.301775][  T491]  ? register_netdev (net/core/dev.c:11618)
[   24.301777][  T491]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   24.301782][  T491]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   24.301784][  T491]  ? __kernel_text_address (kernel/extable.c:79)
[   24.301787][  T491]  ? write_profile (profile.c:?)
[   24.301791][  T491]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   24.301797][  T491]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.301800][  T491]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.301802][  T491]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.301804][  T491]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.301806][  T491]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.301809][  T491]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.301811][  T491]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.301813][  T491]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.301818][  T491]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.301820][  T491]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.301821][  T491]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.301823][  T491]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.301825][  T491]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301827][  T491]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.301830][  T491]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.301834][  T491]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.301836][  T491]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.301838][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301840][  T491]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.301842][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301843][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301844][  T491]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.301847][  T491]  ? __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)
[   24.301848][  T491]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.301850][  T491]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.301853][  T491]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.301854][  T491]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.301859][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301862][  T491]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.301867][  T491]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.301872][  T491]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.301874][  T491]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301878][  T491]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.301880][  T491]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.301882][  T491]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.301884][  T491]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.301888][  T491]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.301890][  T491]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.301893][  T491]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.301895][  T491]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.301900][  T491]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.301902][  T491]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.301905][  T491]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.301908][  T491]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.301911][  T491]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.301917][  T491]  ? 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))
[   24.301919][  T491]  ? 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))
[   24.301924][  T491]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.301928][  T491]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.301930][  T491]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.301934][  T491]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.301938][  T491]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.301942][  T491]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.301944][  T491]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.301949][  T491]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.301952][  T491]  ____sys_sendmsg (net/socket.c:2713)
[   24.301954][  T491]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.301956][  T491]  ? sock_write_iter (net/socket.c:1269)
[   24.301958][  T491]  ? move_addr_to_kernel (net/socket.c:258)
[   24.301965][  T491]  ___sys_sendmsg (net/socket.c:2767)
[   24.301968][  T491]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.301983][  T491]  __sys_sendmsg (net/socket.c:2799)
[   24.301986][  T491]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.301992][  T491]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.301995][  T491]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.301998][  T491]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.302001][  T491]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.302004][  T491] RIP: 0033:0x7f4287d3f54e
[   24.302008][  T491] 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
[   24.302009][  T491] RSP: 002b:00007fff6e3ab030 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.302012][  T491] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f4287d3f54e
[   24.302014][  T491] RDX: 0000000000000000 RSI: 00007fff6e3ab0e0 RDI: 0000000000000005
[   24.302015][  T491] RBP: 00007fff6e3ab040 R08: 0000000000000000 R09: 0000000000000000
[   24.302015][  T491] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918339
[   24.302016][  T491] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6e3ab7a0
| [   25.373434][  T544] softirqs last disabled at (19352): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   25.373437][  T544] Preemption disabled at:
| [   25.373438][  T544] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.373449][  T544] Tainted: [W]=WARN
[   25.373450][  T544] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.373452][  T544] Call Trace:
[   25.373454][  T544]  <TASK>
[   25.373456][  T544]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.373464][  T544]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.373467][  T544]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.373473][  T544]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.373479][  T544]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.373488][  T544]  __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))
[   25.373491][  T544]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.373501][  T544]  ? 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)
[   25.373505][  T544]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.373511][  T544]  put_chars (drivers/char/virtio_console.c:1176)
[   25.373515][  T544]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.373516][  T544]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.373522][  T544]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.373526][  T544]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.373534][  T544]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.373539][  T544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.373548][  T544]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.373553][  T544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.373561][  T544]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.373567][  T544]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.373570][  T544]  ? 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))
[   25.373575][  T544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.373578][  T544]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.373585][  T544]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.373592][  T544]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.373595][  T544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.373604][  T544]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.373609][  T544]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.373611][  T544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.373614][  T544]  ? 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)
[   25.373621][  T544]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.373623][  T544]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.373628][  T544]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.373634][  T544]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.373637][  T544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.373641][  T544]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.373647][  T544]  _printk (kernel/printk/printk.c:2504)
[   25.373652][  T544]  ? snapshot_read.cold (user.c:?)
[   25.373658][  T544]  ? br_multicast_flood (??:?)
[   25.373662][  T544]  ? rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   25.373664][  T544]  ? __rtnl_newlink (net/core/rtnetlink.c:4098)
[   25.373666][  T544]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.373674][  T544]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   25.373681][  T544]  br_init_port (net/bridge/br_stp_if.c:39)
[   25.373685][  T544]  new_nbp (net/bridge/br_if.c:449)
[   25.373691][  T544]  br_add_if (net/bridge/br_if.c:592)
[   25.373694][  T544]  ? netif_set_allmulti (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:69 net/core/dev.c:9712)
[   25.373706][  T544]  do_set_master (net/core/rtnetlink.c:3071)
[   25.373713][  T544]  rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   25.373719][  T544]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[   25.373722][  T544]  ? __dev_get_by_name (net/core/dev.c:905)
[   25.373725][  T544]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[   25.373741][  T544]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[   25.373753][  T544]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.373763][  T544]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.373766][  T544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.373778][  T544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.373785][  T544]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.373788][  T544]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.373794][  T544]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.373796][  T544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.373804][  T544]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.373807][  T544]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.373813][  T544]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.373818][  T544]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.373828][  T544]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.373840][  T544]  ? 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))
[   25.373843][  T544]  ? 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))
[   25.373851][  T544]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.373858][  T544]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.373868][  T544]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.373874][  T544]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.373881][  T544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.373883][  T544]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.373892][  T544]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.373898][  T544]  ____sys_sendmsg (net/socket.c:2713)
[   25.373902][  T544]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.373906][  T544]  ? sock_write_iter (net/socket.c:1269)
[   25.373908][  T544]  ? move_addr_to_kernel (net/socket.c:258)
[   25.373916][  T544]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[   25.373919][  T544]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.373926][  T544]  ___sys_sendmsg (net/socket.c:2767)
[   25.373928][  T544]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   25.373932][  T544]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.373936][  T544]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   25.373964][  T544]  __sys_sendmsg (net/socket.c:2799)
[   25.373969][  T544]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.373978][  T544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.373981][  T544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.373987][  T544]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.373991][  T544]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.373996][  T544]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.373999][  T544] RIP: 0033:0x7f6e4d2bc54e
[   25.374004][  T544] 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
[   25.374006][  T544] RSP: 002b:00007ffc681c4850 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.374010][  T544] RAX: ffffffffffffffda RBX: 00007ffc681c5018 RCX: 00007f6e4d2bc54e
[   25.374012][  T544] RDX: 0000000000000000 RSI: 00007ffc681c4900 RDI: 0000000000000005
[   25.374013][  T544] RBP: 00007ffc681c4860 R08: 0000000000000000 R09: 0000000000000000
[   25.374014][  T544] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91833a
[   25.374016][  T544] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc681c4fd0
| [   31.678780][   T57] softirqs last disabled at (144104): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   31.678782][   T57] Preemption disabled at:
| [   31.678783][   T57] 0x0
| [   31.678793][   T57] Tainted: [W]=WARN
[   31.678794][   T57] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.678796][   T57] Workqueue: events_unbound linkwatch_event
[   31.678799][   T57] Call Trace:
[   31.678801][   T57]  <TASK>
[   31.678803][   T57]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.678810][   T57]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.678815][   T57]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.678819][   T57]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.678823][   T57]  __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))
[   31.678825][   T57]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.678832][   T57]  ? 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)
[   31.678835][   T57]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.678839][   T57]  put_chars (drivers/char/virtio_console.c:1176)
[   31.678846][   T57]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.678849][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.678852][   T57]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.678857][   T57]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.678861][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.678863][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.678868][   T57]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.678872][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.678874][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.678878][   T57]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.678882][   T57]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.678884][   T57]  ? 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))
[   31.678887][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.678889][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.678894][   T57]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.678899][   T57]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.678900][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.678906][   T57]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.678909][   T57]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.678911][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.678912][   T57]  ? 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)
[   31.678916][   T57]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.678918][   T57]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.678921][   T57]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.678924][   T57]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.678925][   T57]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.678928][   T57]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.678930][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.678934][   T57]  _printk (kernel/printk/printk.c:2504)
[   31.678937][   T57]  ? snapshot_read.cold (user.c:?)
[   31.678940][   T57]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   31.678947][   T57]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   31.678951][   T57]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   31.678955][   T57]  br_port_carrier_check (net/bridge/br_if.c:95)
[   31.678959][   T57]  br_device_event (net/bridge/br.c:101)
[   31.678962][   T57]  ? packet_sendmsg_spkt (af_packet.c:?)
[   31.678968][   T57]  notifier_call_chain (kernel/notifier.c:85)
[   31.678974][   T57]  netif_state_change (net/core/dev.c:1625)
[   31.678977][   T57]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   31.678982][   T57]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   31.678985][   T57]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   31.678988][   T57]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   31.678990][   T57]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   31.678993][   T57]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.678995][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.679000][   T57]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   31.679002][   T57]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   31.679005][   T57]  process_one_work (kernel/workqueue.c:3387)
[   31.679012][   T57]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   31.679015][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.679023][   T57]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   31.679027][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.679029][   T57]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   31.679032][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.679035][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.679037][   T57]  kthread (kernel/kthread.c:436)
[   31.679039][   T57]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.679042][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.679045][   T57]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.679050][   T57]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   31.679053][   T57]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.679057][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.679060][   T57]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   33.238530][   T57] softirqs last disabled at (144660): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   33.238533][   T57] Preemption disabled at:
| [   33.238533][   T57] 0x0
| [   33.238544][   T57] Tainted: [W]=WARN
[   33.238545][   T57] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.238547][   T57] Workqueue: events_unbound linkwatch_event
[   33.238550][   T57] Call Trace:
[   33.238552][   T57]  <TASK>
[   33.238553][   T57]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   33.238561][   T57]  __might_resched.cold (kernel/sched/core.c:9234)
[   33.238565][   T57]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   33.238570][   T57]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   33.238574][   T57]  __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))
[   33.238576][   T57]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.238583][   T57]  ? 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)
[   33.238586][   T57]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.238590][   T57]  put_chars (drivers/char/virtio_console.c:1176)
[   33.238593][   T57]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   33.238596][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.238599][   T57]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   33.238604][   T57]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   33.238608][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.238610][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.238615][   T57]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   33.238619][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.238621][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.238626][   T57]  console_emit_next_record (kernel/printk/printk.c:3183)
[   33.238630][   T57]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   33.238632][   T57]  ? 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))
[   33.238635][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.238637][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.238641][   T57]  console_flush_one_record (kernel/printk/printk.c:3268)
[   33.238646][   T57]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   33.238648][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.238654][   T57]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   33.238657][   T57]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   33.238658][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.238660][   T57]  ? 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)
[   33.238664][   T57]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   33.238666][   T57]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   33.238669][   T57]  vprintk_emit (kernel/printk/printk.c:2479)
[   33.238672][   T57]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   33.238674][   T57]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.238676][   T57]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   33.238679][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   33.238683][   T57]  _printk (kernel/printk/printk.c:2504)
[   33.238686][   T57]  ? snapshot_read.cold (user.c:?)
[   33.238689][   T57]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   33.238696][   T57]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   33.238701][   T57]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   33.238705][   T57]  br_port_carrier_check (net/bridge/br_if.c:95)
[   33.238709][   T57]  br_device_event (net/bridge/br.c:101)
[   33.238712][   T57]  ? packet_sendmsg_spkt (af_packet.c:?)
[   33.238719][   T57]  notifier_call_chain (kernel/notifier.c:85)
[   33.238725][   T57]  netif_state_change (net/core/dev.c:1625)
[   33.238729][   T57]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   33.238733][   T57]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   33.238737][   T57]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   33.238740][   T57]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   33.238742][   T57]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   33.238745][   T57]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   33.238747][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.238752][   T57]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   33.238754][   T57]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   33.238758][   T57]  process_one_work (kernel/workqueue.c:3387)
[   33.238765][   T57]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   33.238768][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.238776][   T57]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   33.238781][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.238783][   T57]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   33.238786][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.238789][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.238791][   T57]  kthread (kernel/kthread.c:436)
[   33.238793][   T57]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.238797][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.238800][   T57]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.238804][   T57]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   33.238808][   T57]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.238811][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.238814][   T57]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   35.714727][   T57] softirqs last disabled at (166244): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   35.714730][   T57] Preemption disabled at:
| [   35.714731][   T57] 0x0
| [   35.714741][   T57] Tainted: [W]=WARN
[   35.714741][   T57] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.714743][   T57] Workqueue: events_unbound linkwatch_event
[   35.714746][   T57] Call Trace:
[   35.714748][   T57]  <TASK>
[   35.714750][   T57]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.714756][   T57]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.714761][   T57]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.714765][   T57]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.714770][   T57]  __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))
[   35.714772][   T57]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.714779][   T57]  ? 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)
[   35.714781][   T57]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.714785][   T57]  put_chars (drivers/char/virtio_console.c:1176)
[   35.714788][   T57]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.714791][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.714794][   T57]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.714799][   T57]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.714803][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.714805][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.714810][   T57]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.714814][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.714816][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.714820][   T57]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.714824][   T57]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.714826][   T57]  ? 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))
[   35.714830][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.714831][   T57]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.714836][   T57]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.714840][   T57]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.714842][   T57]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.714847][   T57]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.714850][   T57]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.714857][   T57]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.714859][   T57]  ? 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)
[   35.714863][   T57]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.714865][   T57]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.714868][   T57]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.714871][   T57]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.714872][   T57]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.714875][   T57]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.714877][   T57]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.714881][   T57]  _printk (kernel/printk/printk.c:2504)
[   35.714884][   T57]  ? snapshot_read.cold (user.c:?)
[   35.714887][   T57]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   35.714894][   T57]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   35.714899][   T57]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   35.714903][   T57]  br_port_carrier_check (net/bridge/br_if.c:95)
[   35.714907][   T57]  br_device_event (net/bridge/br.c:101)
[   35.714910][   T57]  ? packet_sendmsg_spkt (af_packet.c:?)
[   35.714916][   T57]  notifier_call_chain (kernel/notifier.c:85)
[   35.714922][   T57]  netif_state_change (net/core/dev.c:1625)
[   35.714926][   T57]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   35.714930][   T57]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   35.714934][   T57]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   35.714937][   T57]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   35.714939][   T57]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   35.714942][   T57]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.714945][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.714949][   T57]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   35.714952][   T57]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   35.714955][   T57]  process_one_work (kernel/workqueue.c:3387)
[   35.714962][   T57]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   35.714965][   T57]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.714973][   T57]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   35.714977][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   35.714979][   T57]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   35.714982][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   35.714985][   T57]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   35.714987][   T57]  kthread (kernel/kthread.c:436)
[   35.714989][   T57]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   35.714993][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   35.714995][   T57]  ret_from_fork (arch/x86/kernel/process.c:158)
[   35.715000][   T57]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   35.715003][   T57]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   35.715007][   T57]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   35.715009][   T57]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   36.809091][   T70] softirqs last disabled at (178181): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   36.809095][   T70] Preemption disabled at:
| [   36.809096][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.809106][   T70] Tainted: [W]=WARN
[   36.809108][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.809110][   T70] Workqueue: netns cleanup_net
[   36.809114][   T70] Call Trace:
[   36.809116][   T70]  <TASK>
[   36.809119][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.809127][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.809129][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.809136][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.809141][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.809148][   T70]  __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))
[   36.809151][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.809161][   T70]  ? 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)
[   36.809164][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.809171][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   36.809175][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.809177][   T70]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.809182][   T70]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.809186][   T70]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.809194][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.809200][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.809209][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.809214][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.809223][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.809229][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.809232][   T70]  ? 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))
[   36.809237][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.809240][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.809247][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.809254][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.809257][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.809267][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.809271][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.809274][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.809277][   T70]  ? 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)
[   36.809283][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.809286][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.809291][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.809296][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.809298][   T70]  ? cleanup_net (net/core/net_namespace.c:706)
[   36.809301][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   36.809304][   T70]  ? kthread (kernel/kthread.c:436)
[   36.809307][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   36.809311][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   36.809318][   T70]  _printk (kernel/printk/printk.c:2504)
[   36.809323][   T70]  ? snapshot_read.cold (user.c:?)
[   36.809331][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.809336][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.809343][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.809347][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   36.809354][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.809358][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   36.809362][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   36.809365][   T70]  ? 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)
[   36.809369][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   36.809376][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   36.809382][   T70]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   36.809392][   T70]  br_dev_delete (net/bridge/br_if.c:387)
[   36.809398][   T70]  br_net_exit_rtnl (net/bridge/br.c:414)
[   36.809403][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   36.809410][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[   36.809413][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.809423][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   36.809428][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   36.809435][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.809438][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.809444][   T70]  process_one_work (kernel/workqueue.c:3387)
[   36.809456][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   36.809461][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.809475][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   36.809487][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   36.809490][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   36.809495][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   36.809499][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   36.809503][   T70]  kthread (kernel/kthread.c:436)
[   36.809506][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   36.809510][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   36.809515][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   36.809520][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   36.809526][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   36.809531][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   36.809535][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   38.100101][  T777] softirqs last disabled at (17664): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   38.100104][  T777] Preemption disabled at:
| [   38.100104][  T777] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.100112][  T777] Tainted: [W]=WARN
[   38.100113][  T777] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.100115][  T777] Call Trace:
[   38.100116][  T777]  <TASK>
[   38.100118][  T777]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.100124][  T777]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.100126][  T777]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.100131][  T777]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.100135][  T777]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   38.100140][  T777]  __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))
[   38.100141][  T777]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.100148][  T777]  ? 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)
[   38.100151][  T777]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.100155][  T777]  put_chars (drivers/char/virtio_console.c:1176)
[   38.100158][  T777]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.100164][  T777]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.100172][  T777]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.100175][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.100180][  T777]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.100184][  T777]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.100186][  T777]  ? 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))
[   38.100189][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100192][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.100196][  T777]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.100200][  T777]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.100202][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.100207][  T777]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.100210][  T777]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.100212][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100213][  T777]  ? 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)
[   38.100217][  T777]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.100219][  T777]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.100222][  T777]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.100225][  T777]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.100227][  T777]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   38.100233][  T777]  _printk (kernel/printk/printk.c:2504)
[   38.100236][  T777]  ? snapshot_read.cold (user.c:?)
[   38.100238][  T777]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.100241][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.100243][  T777]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.100246][  T777]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.100249][  T777]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.100252][  T777]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.100254][  T777]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.100257][  T777]  ? netdev_notice (net/core/dev.c:13194)
[   38.100260][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.100263][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.100266][  T777]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   38.100269][  T777]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.100271][  T777]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   38.100273][  T777]  ? register_netdev (net/core/dev.c:11618)
[   38.100275][  T777]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   38.100280][  T777]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   38.100283][  T777]  ? __kernel_text_address (kernel/extable.c:79)
[   38.100285][  T777]  ? write_profile (profile.c:?)
[   38.100290][  T777]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   38.100296][  T777]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.100299][  T777]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.100301][  T777]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.100302][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   38.100304][  T777]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   38.100308][  T777]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.100310][  T777]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.100312][  T777]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.100314][  T777]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.100316][  T777]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.100317][  T777]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.100319][  T777]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.100321][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.100323][  T777]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   38.100326][  T777]  ? ___sys_sendmsg (net/socket.c:2758)
[   38.100329][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.100332][  T777]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.100334][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100336][  T777]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.100337][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100339][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100340][  T777]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.100343][  T777]  ? __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)
[   38.100344][  T777]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.100346][  T777]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.100349][  T777]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.100351][  T777]  ? nla_get_range_signed (lib/nlattr.c:270)
[   38.100356][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100358][  T777]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.100363][  T777]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.100369][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.100371][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.100375][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.100377][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.100379][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.100381][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.100384][  T777]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.100386][  T777]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.100390][  T777]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.100391][  T777]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.100395][  T777]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.100397][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.100401][  T777]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.100404][  T777]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.100407][  T777]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.100413][  T777]  ? 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))
[   38.100415][  T777]  ? 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))
[   38.100420][  T777]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.100424][  T777]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.100427][  T777]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.100431][  T777]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.100435][  T777]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.100439][  T777]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.100441][  T777]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   38.100446][  T777]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   38.100449][  T777]  ____sys_sendmsg (net/socket.c:2713)
[   38.100452][  T777]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.100454][  T777]  ? sock_write_iter (net/socket.c:1269)
[   38.100456][  T777]  ? move_addr_to_kernel (net/socket.c:258)
[   38.100463][  T777]  ___sys_sendmsg (net/socket.c:2767)
[   38.100466][  T777]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.100485][  T777]  __sys_sendmsg (net/socket.c:2799)
[   38.100488][  T777]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.100495][  T777]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.100498][  T777]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.100501][  T777]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.100504][  T777]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.100506][  T777] RIP: 0033:0x7fdbb290f54e
[   38.100509][  T777] 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
[   38.100511][  T777] RSP: 002b:00007ffc27d25cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.100514][  T777] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fdbb290f54e
[   38.100515][  T777] RDX: 0000000000000000 RSI: 00007ffc27d25da0 RDI: 0000000000000005
[   38.100516][  T777] RBP: 00007ffc27d25d00 R08: 0000000000000000 R09: 0000000000000000
[   38.100517][  T777] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918347
[   38.100518][  T777] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc27d26460
| [   39.278489][  T828] softirqs last disabled at (15290): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   39.278492][  T828] Preemption disabled at:
| [   39.278492][  T828] vprintk_emit (kernel/printk/printk.c:2471)
| [   39.278501][  T828] Tainted: [W]=WARN
[   39.278501][  T828] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.278503][  T828] Call Trace:
[   39.278505][  T828]  <TASK>
[   39.278506][  T828]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.278512][  T828]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   39.278514][  T828]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.278518][  T828]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.278522][  T828]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   39.278527][  T828]  __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))
[   39.278529][  T828]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.278535][  T828]  ? 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)
[   39.278538][  T828]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.278542][  T828]  put_chars (drivers/char/virtio_console.c:1176)
[   39.278544][  T828]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.278545][  T828]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.278549][  T828]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.278555][  T828]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.278562][  T828]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.278565][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278567][  T828]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.278571][  T828]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.278575][  T828]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.278577][  T828]  ? 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))
[   39.278580][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278582][  T828]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.278586][  T828]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.278590][  T828]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.278592][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.278597][  T828]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.278600][  T828]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.278602][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278604][  T828]  ? 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)
[   39.278608][  T828]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.278609][  T828]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.278612][  T828]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.278615][  T828]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.278617][  T828]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.278619][  T828]  ? __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)
[   39.278622][  T828]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.278625][  T828]  _printk (kernel/printk/printk.c:2504)
[   39.278629][  T828]  ? snapshot_read.cold (user.c:?)
[   39.278632][  T828]  ? new_nbp (./include/linux/netdevice.h:2866 ./include/net/netdev_lock.h:48 net/bridge/br_if.c:445)
[   39.278636][  T828]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   39.278640][  T828]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   39.278645][  T828]  br_init_port (net/bridge/br_stp_if.c:39)
[   39.278647][  T828]  new_nbp (net/bridge/br_if.c:449)
[   39.278651][  T828]  br_add_if (net/bridge/br_if.c:592)
[   39.278654][  T828]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   39.278655][  T828]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   39.278662][  T828]  do_set_master (net/core/rtnetlink.c:3071)
[   39.278666][  T828]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   39.278669][  T828]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.278672][  T828]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.278674][  T828]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   39.278677][  T828]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   39.278680][  T828]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.278682][  T828]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.278684][  T828]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.278686][  T828]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.278688][  T828]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.278690][  T828]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.278691][  T828]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.278693][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.278695][  T828]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   39.278698][  T828]  ? ___sys_sendmsg (net/socket.c:2758)
[   39.278702][  T828]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.278704][  T828]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.278706][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278708][  T828]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.278710][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278711][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278713][  T828]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.278715][  T828]  ? __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)
[   39.278716][  T828]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.278718][  T828]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.278721][  T828]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.278722][  T828]  ? nla_get_range_signed (lib/nlattr.c:270)
[   39.278727][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278729][  T828]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.278735][  T828]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.278740][  T828]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.278742][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.278746][  T828]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.278748][  T828]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.278751][  T828]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.278753][  T828]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.278756][  T828]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.278758][  T828]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.278762][  T828]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.278763][  T828]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.278767][  T828]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.278769][  T828]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.278773][  T828]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.278776][  T828]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.278779][  T828]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.278786][  T828]  ? 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))
[   39.278788][  T828]  ? 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))
[   39.278792][  T828]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.278796][  T828]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.278799][  T828]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.278803][  T828]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.278807][  T828]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.278811][  T828]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.278812][  T828]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   39.278818][  T828]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   39.278821][  T828]  ____sys_sendmsg (net/socket.c:2713)
[   39.278823][  T828]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.278825][  T828]  ? sock_write_iter (net/socket.c:1269)
[   39.278827][  T828]  ? move_addr_to_kernel (net/socket.c:258)
[   39.278834][  T828]  ___sys_sendmsg (net/socket.c:2767)
[   39.278837][  T828]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.278853][  T828]  __sys_sendmsg (net/socket.c:2799)
[   39.278857][  T828]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.278867][  T828]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.278870][  T828]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.278873][  T828]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.278876][  T828]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.278878][  T828] RIP: 0033:0x7f92168d454e
[   39.278882][  T828] 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
[   39.278884][  T828] RSP: 002b:00007ffe047db1f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.278886][  T828] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f92168d454e
[   39.278888][  T828] RDX: 0000000000000000 RSI: 00007ffe047db2a0 RDI: 0000000000000005
[   39.278889][  T828] RBP: 00007ffe047db200 R08: 0000000000000000 R09: 0000000000000000
[   39.278889][  T828] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918348
[   39.278890][  T828] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe047db970
| [   45.250998][  T519] softirqs last disabled at (12506): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   45.251000][  T519] Preemption disabled at:
| [   45.251001][  T519] 0x0
| [   45.251011][  T519] Tainted: [W]=WARN
[   45.251012][  T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.251014][  T519] Workqueue: events_unbound linkwatch_event
[   45.251018][  T519] Call Trace:
[   45.251019][  T519]  <TASK>
[   45.251021][  T519]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.251027][  T519]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.251032][  T519]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.251036][  T519]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.251040][  T519]  __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))
[   45.251042][  T519]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.251052][  T519]  ? 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)
[   45.251056][  T519]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.251060][  T519]  put_chars (drivers/char/virtio_console.c:1176)
[   45.251062][  T519]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.251066][  T519]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.251069][  T519]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.251074][  T519]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.251078][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.251080][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.251085][  T519]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.251089][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.251091][  T519]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.251095][  T519]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.251099][  T519]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.251101][  T519]  ? 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))
[   45.251105][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.251106][  T519]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.251111][  T519]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.251115][  T519]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.251117][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.251123][  T519]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.251126][  T519]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.251128][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.251129][  T519]  ? 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)
[   45.251133][  T519]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.251135][  T519]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.251138][  T519]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.251141][  T519]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.251142][  T519]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.251145][  T519]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.251148][  T519]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.251151][  T519]  _printk (kernel/printk/printk.c:2504)
[   45.251155][  T519]  ? snapshot_read.cold (user.c:?)
[   45.251158][  T519]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   45.251164][  T519]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   45.251169][  T519]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   45.251172][  T519]  br_port_carrier_check (net/bridge/br_if.c:95)
[   45.251176][  T519]  br_device_event (net/bridge/br.c:101)
[   45.251180][  T519]  ? packet_sendmsg_spkt (af_packet.c:?)
[   45.251186][  T519]  notifier_call_chain (kernel/notifier.c:85)
[   45.251192][  T519]  netif_state_change (net/core/dev.c:1625)
[   45.251196][  T519]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   45.251200][  T519]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   45.251203][  T519]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   45.251206][  T519]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   45.251208][  T519]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   45.251211][  T519]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   45.251214][  T519]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.251219][  T519]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   45.251222][  T519]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   45.251228][  T519]  process_one_work (kernel/workqueue.c:3387)
[   45.251235][  T519]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   45.251238][  T519]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.251246][  T519]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   45.251251][  T519]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   45.251253][  T519]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   45.251256][  T519]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   45.251259][  T519]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   45.251261][  T519]  kthread (kernel/kthread.c:436)
[   45.251263][  T519]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   45.251266][  T519]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   45.251269][  T519]  ret_from_fork (arch/x86/kernel/process.c:158)
[   45.251273][  T519]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   45.251277][  T519]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   45.251280][  T519]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   45.251283][  T519]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   49.108430][   T70] softirqs last disabled at (233934): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   49.108433][   T70] Preemption disabled at:
| [   49.108433][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.108442][   T70] Tainted: [W]=WARN
[   49.108443][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.108445][   T70] Workqueue: netns cleanup_net
[   49.108448][   T70] Call Trace:
[   49.108450][   T70]  <TASK>
[   49.108452][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.108459][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.108460][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.108465][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.108469][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   49.108474][   T70]  __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))
[   49.108476][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.108487][   T70]  ? 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)
[   49.108490][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.108494][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   49.108497][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.108498][   T70]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.108502][   T70]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.108505][   T70]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.108510][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.108514][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.108520][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.108523][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.108528][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.108532][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.108534][   T70]  ? 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))
[   49.108538][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.108540][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.108544][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.108548][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.108550][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.108556][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.108559][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.108561][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.108563][   T70]  ? 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)
[   49.108567][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.108569][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.108571][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.108575][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.108576][   T70]  ? cleanup_net (net/core/net_namespace.c:706)
[   49.108578][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   49.108580][   T70]  ? kthread (kernel/kthread.c:436)
[   49.108582][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   49.108586][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   49.108591][   T70]  _printk (kernel/printk/printk.c:2504)
[   49.108594][   T70]  ? snapshot_read.cold (user.c:?)
[   49.108599][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.108603][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.108607][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.108610][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   49.108615][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.108617][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   49.108620][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   49.108622][   T70]  ? 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)
[   49.108624][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   49.108628][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   49.108632][   T70]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   49.108639][   T70]  br_dev_delete (net/bridge/br_if.c:387)
[   49.108643][   T70]  br_net_exit_rtnl (net/bridge/br.c:414)
[   49.108647][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   49.108651][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   49.108655][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[   49.108656][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.108659][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   49.108664][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   49.108668][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   49.108672][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.108674][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.108677][   T70]  process_one_work (kernel/workqueue.c:3387)
[   49.108684][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   49.108687][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.108696][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   49.108700][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   49.108702][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   49.108705][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   49.108708][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   49.108710][   T70]  kthread (kernel/kthread.c:436)
[   49.108712][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   49.108716][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   49.108719][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   49.108722][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   49.108726][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   49.108729][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   49.108732][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   50.623960][ T1035] softirqs last disabled at (23584): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   50.623963][ T1035] Preemption disabled at:
| [   50.623963][ T1035] vprintk_emit (kernel/printk/printk.c:2471)
| [   50.623972][ T1035] Tainted: [W]=WARN
[   50.623972][ T1035] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.623974][ T1035] Call Trace:
[   50.623976][ T1035]  <TASK>
[   50.623977][ T1035]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.623983][ T1035]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   50.623985][ T1035]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.623989][ T1035]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.623993][ T1035]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   50.623998][ T1035]  __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))
[   50.624000][ T1035]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.624006][ T1035]  ? 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)
[   50.624009][ T1035]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.624013][ T1035]  put_chars (drivers/char/virtio_console.c:1176)
[   50.624015][ T1035]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.624022][ T1035]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.624029][ T1035]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.624032][ T1035]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.624037][ T1035]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.624041][ T1035]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.624043][ T1035]  ? 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))
[   50.624046][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624049][ T1035]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.624053][ T1035]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.624057][ T1035]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.624060][ T1035]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.624065][ T1035]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.624068][ T1035]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.624070][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624072][ T1035]  ? 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)
[   50.624075][ T1035]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.624077][ T1035]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.624080][ T1035]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.624083][ T1035]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.624086][ T1035]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   50.624091][ T1035]  _printk (kernel/printk/printk.c:2504)
[   50.624095][ T1035]  ? snapshot_read.cold (user.c:?)
[   50.624097][ T1035]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   50.624099][ T1035]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   50.624102][ T1035]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   50.624105][ T1035]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   50.624109][ T1035]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   50.624111][ T1035]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   50.624114][ T1035]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   50.624116][ T1035]  ? netdev_notice (net/core/dev.c:13194)
[   50.624119][ T1035]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   50.624122][ T1035]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   50.624125][ T1035]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   50.624129][ T1035]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   50.624131][ T1035]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   50.624133][ T1035]  ? register_netdev (net/core/dev.c:11618)
[   50.624134][ T1035]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   50.624140][ T1035]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   50.624142][ T1035]  ? __kernel_text_address (kernel/extable.c:79)
[   50.624145][ T1035]  ? write_profile (profile.c:?)
[   50.624149][ T1035]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   50.624155][ T1035]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   50.624158][ T1035]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   50.624160][ T1035]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   50.624162][ T1035]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   50.624164][ T1035]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   50.624167][ T1035]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   50.624169][ T1035]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   50.624171][ T1035]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   50.624173][ T1035]  ? kasan_save_stack (mm/kasan/common.c:58)
[   50.624175][ T1035]  ? kasan_save_stack (mm/kasan/common.c:57)
[   50.624177][ T1035]  ? kasan_save_track (mm/kasan/common.c:78)
[   50.624178][ T1035]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   50.624180][ T1035]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.624182][ T1035]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   50.624185][ T1035]  ? ___sys_sendmsg (net/socket.c:2758)
[   50.624189][ T1035]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   50.624191][ T1035]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.624194][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624196][ T1035]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.624197][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624198][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624200][ T1035]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   50.624202][ T1035]  ? __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)
[   50.624204][ T1035]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   50.624206][ T1035]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.624209][ T1035]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   50.624210][ T1035]  ? nla_get_range_signed (lib/nlattr.c:270)
[   50.624215][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624218][ T1035]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   50.624223][ T1035]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   50.624228][ T1035]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.624230][ T1035]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.624235][ T1035]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   50.624237][ T1035]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   50.624239][ T1035]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.624241][ T1035]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   50.624245][ T1035]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.624247][ T1035]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.624250][ T1035]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.624251][ T1035]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   50.624256][ T1035]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   50.624258][ T1035]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   50.624262][ T1035]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.624265][ T1035]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.624268][ T1035]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   50.624274][ T1035]  ? 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))
[   50.624276][ T1035]  ? 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))
[   50.624281][ T1035]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.624285][ T1035]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   50.624287][ T1035]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   50.624292][ T1035]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.624296][ T1035]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   50.624300][ T1035]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   50.624301][ T1035]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   50.624307][ T1035]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   50.624310][ T1035]  ____sys_sendmsg (net/socket.c:2713)
[   50.624312][ T1035]  ? copy_msghdr_from_user (net/socket.c:2650)
[   50.624314][ T1035]  ? sock_write_iter (net/socket.c:1269)
[   50.624316][ T1035]  ? move_addr_to_kernel (net/socket.c:258)
[   50.624323][ T1035]  ___sys_sendmsg (net/socket.c:2767)
[   50.624326][ T1035]  ? copy_msghdr_from_user (net/socket.c:2619)
[   50.624342][ T1035]  __sys_sendmsg (net/socket.c:2799)
[   50.624345][ T1035]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   50.624352][ T1035]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.624355][ T1035]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.624358][ T1035]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   50.624361][ T1035]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.624363][ T1035] RIP: 0033:0x7f7b227bc54e
[   50.624367][ T1035] 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
[   50.624369][ T1035] RSP: 002b:00007fff26d1ab80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   50.624371][ T1035] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f7b227bc54e
[   50.624373][ T1035] RDX: 0000000000000000 RSI: 00007fff26d1ac30 RDI: 0000000000000005
[   50.624374][ T1035] RBP: 00007fff26d1ab90 R08: 0000000000000000 R09: 0000000000000000
[   50.624375][ T1035] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918353
[   50.624375][ T1035] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff26d1b2f0
| [   51.773467][ T1084] softirqs last disabled at (14890): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   51.773470][ T1084] Preemption disabled at:
| [   51.773471][ T1084] vprintk_emit (kernel/printk/printk.c:2471)
| [   51.773485][ T1084] Tainted: [W]=WARN
[   51.773486][ T1084] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.773488][ T1084] Call Trace:
[   51.773490][ T1084]  <TASK>
[   51.773493][ T1084]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   51.773500][ T1084]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   51.773503][ T1084]  __might_resched.cold (kernel/sched/core.c:9234)
[   51.773509][ T1084]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   51.773514][ T1084]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   51.773521][ T1084]  __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))
[   51.773524][ T1084]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.773534][ T1084]  ? 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)
[   51.773537][ T1084]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.773543][ T1084]  put_chars (drivers/char/virtio_console.c:1176)
[   51.773547][ T1084]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   51.773549][ T1084]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.773554][ T1084]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.773564][ T1084]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   51.773576][ T1084]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   51.773580][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773583][ T1084]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.773590][ T1084]  console_emit_next_record (kernel/printk/printk.c:3183)
[   51.773597][ T1084]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   51.773599][ T1084]  ? 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))
[   51.773605][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773608][ T1084]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.773615][ T1084]  console_flush_one_record (kernel/printk/printk.c:3268)
[   51.773622][ T1084]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   51.773624][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.773634][ T1084]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   51.773638][ T1084]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   51.773641][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773644][ T1084]  ? 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)
[   51.773650][ T1084]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   51.773653][ T1084]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   51.773658][ T1084]  vprintk_emit (kernel/printk/printk.c:2479)
[   51.773663][ T1084]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   51.773665][ T1084]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.773669][ T1084]  ? __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)
[   51.773672][ T1084]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.773679][ T1084]  _printk (kernel/printk/printk.c:2504)
[   51.773684][ T1084]  ? snapshot_read.cold (user.c:?)
[   51.773689][ T1084]  ? new_nbp (./include/linux/netdevice.h:2866 ./include/net/netdev_lock.h:48 net/bridge/br_if.c:445)
[   51.773695][ T1084]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   51.773702][ T1084]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   51.773709][ T1084]  br_init_port (net/bridge/br_stp_if.c:39)
[   51.773713][ T1084]  new_nbp (net/bridge/br_if.c:449)
[   51.773720][ T1084]  br_add_if (net/bridge/br_if.c:592)
[   51.773723][ T1084]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   51.773725][ T1084]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   51.773736][ T1084]  do_set_master (net/core/rtnetlink.c:3071)
[   51.773742][ T1084]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   51.773748][ T1084]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   51.773753][ T1084]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   51.773755][ T1084]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.773759][ T1084]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.773764][ T1084]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.773767][ T1084]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.773770][ T1084]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.773774][ T1084]  ? kasan_save_stack (mm/kasan/common.c:58)
[   51.773777][ T1084]  ? kasan_save_stack (mm/kasan/common.c:57)
[   51.773779][ T1084]  ? kasan_save_track (mm/kasan/common.c:78)
[   51.773781][ T1084]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   51.773785][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.773788][ T1084]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   51.773792][ T1084]  ? ___sys_sendmsg (net/socket.c:2758)
[   51.773798][ T1084]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.773801][ T1084]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.773805][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773808][ T1084]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.773811][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773813][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773816][ T1084]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.773819][ T1084]  ? __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)
[   51.773821][ T1084]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.773824][ T1084]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.773830][ T1084]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   51.773832][ T1084]  ? nla_get_range_signed (lib/nlattr.c:270)
[   51.773840][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.773844][ T1084]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   51.773853][ T1084]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.773863][ T1084]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.773866][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.773874][ T1084]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.773877][ T1084]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.773880][ T1084]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.773883][ T1084]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.773890][ T1084]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.773893][ T1084]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   51.773904][ T1084]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.773906][ T1084]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.773914][ T1084]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.773917][ T1084]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.773923][ T1084]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.773927][ T1084]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.773933][ T1084]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.773944][ T1084]  ? 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))
[   51.773946][ T1084]  ? 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))
[   51.773954][ T1084]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.773961][ T1084]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.773965][ T1084]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.773973][ T1084]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.773980][ T1084]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   51.773986][ T1084]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.773989][ T1084]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   51.773997][ T1084]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   51.774002][ T1084]  ____sys_sendmsg (net/socket.c:2713)
[   51.774005][ T1084]  ? copy_msghdr_from_user (net/socket.c:2650)
[   51.774009][ T1084]  ? sock_write_iter (net/socket.c:1269)
[   51.774011][ T1084]  ? move_addr_to_kernel (net/socket.c:258)
[   51.774025][ T1084]  ___sys_sendmsg (net/socket.c:2767)
[   51.774029][ T1084]  ? copy_msghdr_from_user (net/socket.c:2619)
[   51.774058][ T1084]  __sys_sendmsg (net/socket.c:2799)
[   51.774063][ T1084]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   51.774074][ T1084]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.774079][ T1084]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   51.774083][ T1084]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   51.774088][ T1084]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.774091][ T1084] RIP: 0033:0x7fbaee92754e
[   51.774096][ T1084] 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
[   51.774099][ T1084] RSP: 002b:00007fffb57eaea0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.774102][ T1084] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fbaee92754e
[   51.774104][ T1084] RDX: 0000000000000000 RSI: 00007fffb57eaf50 RDI: 0000000000000005
[   51.774106][ T1084] RBP: 00007fffb57eaeb0 R08: 0000000000000000 R09: 0000000000000000
[   51.774107][ T1084] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918354
[   51.774108][ T1084] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb57eb620
| [   57.661137][  T223] softirqs last disabled at (319380): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   57.661140][  T223] Preemption disabled at:
| [   57.661140][  T223] 0x0
| [   57.661150][  T223] Tainted: [W]=WARN
[   57.661151][  T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   57.661153][  T223] Workqueue: events_unbound linkwatch_event
[   57.661156][  T223] Call Trace:
[   57.661158][  T223]  <TASK>
[   57.661159][  T223]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   57.661166][  T223]  __might_resched.cold (kernel/sched/core.c:9234)
[   57.661171][  T223]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   57.661175][  T223]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   57.661179][  T223]  __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))
[   57.661181][  T223]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   57.661188][  T223]  ? 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)
[   57.661190][  T223]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   57.661194][  T223]  put_chars (drivers/char/virtio_console.c:1176)
[   57.661197][  T223]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   57.661200][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   57.661203][  T223]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   57.661208][  T223]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   57.661212][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.661213][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.661218][  T223]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   57.661222][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.661224][  T223]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   57.661229][  T223]  console_emit_next_record (kernel/printk/printk.c:3183)
[   57.661233][  T223]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   57.661235][  T223]  ? 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))
[   57.661238][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.661240][  T223]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   57.661244][  T223]  console_flush_one_record (kernel/printk/printk.c:3268)
[   57.661248][  T223]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   57.661250][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.661256][  T223]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   57.661259][  T223]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   57.661261][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.661263][  T223]  ? 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)
[   57.661267][  T223]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   57.661268][  T223]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   57.661271][  T223]  vprintk_emit (kernel/printk/printk.c:2479)
[   57.661275][  T223]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   57.661276][  T223]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   57.661278][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   57.661281][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   57.661285][  T223]  _printk (kernel/printk/printk.c:2504)
[   57.661288][  T223]  ? snapshot_read.cold (user.c:?)
[   57.661291][  T223]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   57.661298][  T223]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   57.661303][  T223]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   57.661306][  T223]  br_port_carrier_check (net/bridge/br_if.c:95)
[   57.661310][  T223]  br_device_event (net/bridge/br.c:101)
[   57.661314][  T223]  ? packet_sendmsg_spkt (af_packet.c:?)
[   57.661320][  T223]  notifier_call_chain (kernel/notifier.c:85)
[   57.661326][  T223]  netif_state_change (net/core/dev.c:1625)
[   57.661329][  T223]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   57.661334][  T223]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   57.661338][  T223]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   57.661340][  T223]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   57.661342][  T223]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   57.661345][  T223]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   57.661348][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   57.661352][  T223]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   57.661354][  T223]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   57.661358][  T223]  process_one_work (kernel/workqueue.c:3387)
[   57.661365][  T223]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   57.661368][  T223]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   57.661376][  T223]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   57.661380][  T223]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   57.661382][  T223]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   57.661385][  T223]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   57.661388][  T223]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   57.661390][  T223]  kthread (kernel/kthread.c:436)
[   57.661392][  T223]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   57.661395][  T223]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   57.661398][  T223]  ret_from_fork (arch/x86/kernel/process.c:158)
[   57.661403][  T223]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   57.661406][  T223]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   57.661409][  T223]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   57.661412][  T223]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   58.699656][  T996] softirqs last disabled at (54534): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   58.699659][  T996] Preemption disabled at:
| [   58.699660][  T996] 0x0
| [   58.699670][  T996] Tainted: [W]=WARN
[   58.699671][  T996] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   58.699672][  T996] Workqueue: events_unbound linkwatch_event
[   58.699676][  T996] Call Trace:
[   58.699677][  T996]  <TASK>
[   58.699679][  T996]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   58.699686][  T996]  __might_resched.cold (kernel/sched/core.c:9234)
[   58.699690][  T996]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   58.699694][  T996]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   58.699699][  T996]  __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))
[   58.699701][  T996]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   58.699708][  T996]  ? 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)
[   58.699711][  T996]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   58.699715][  T996]  put_chars (drivers/char/virtio_console.c:1176)
[   58.699718][  T996]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   58.699721][  T996]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   58.699724][  T996]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   58.699729][  T996]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   58.699733][  T996]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.699734][  T996]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.699739][  T996]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   58.699743][  T996]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.699745][  T996]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   58.699750][  T996]  console_emit_next_record (kernel/printk/printk.c:3183)
[   58.699754][  T996]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   58.699756][  T996]  ? 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))
[   58.699759][  T996]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.699761][  T996]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   58.699765][  T996]  console_flush_one_record (kernel/printk/printk.c:3268)
[   58.699769][  T996]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   58.699771][  T996]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   58.699777][  T996]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   58.699780][  T996]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   58.699782][  T996]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   58.699784][  T996]  ? 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)
[   58.699788][  T996]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   58.699789][  T996]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   58.699792][  T996]  vprintk_emit (kernel/printk/printk.c:2479)
[   58.699796][  T996]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   58.699797][  T996]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   58.699800][  T996]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   58.699802][  T996]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   58.699806][  T996]  _printk (kernel/printk/printk.c:2504)
[   58.699809][  T996]  ? snapshot_read.cold (user.c:?)
[   58.699812][  T996]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   58.699819][  T996]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   58.699824][  T996]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   58.699828][  T996]  br_port_carrier_check (net/bridge/br_if.c:95)
[   58.699832][  T996]  br_device_event (net/bridge/br.c:101)
[   58.699835][  T996]  ? packet_sendmsg_spkt (af_packet.c:?)
[   58.699842][  T996]  notifier_call_chain (kernel/notifier.c:85)
[   58.699848][  T996]  netif_state_change (net/core/dev.c:1625)
[   58.699851][  T996]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   58.699856][  T996]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   58.699859][  T996]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   58.699862][  T996]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   58.699864][  T996]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   58.699867][  T996]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   58.699870][  T996]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   58.699874][  T996]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   58.699877][  T996]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   58.699880][  T996]  process_one_work (kernel/workqueue.c:3387)
[   58.699887][  T996]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   58.699890][  T996]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   58.699899][  T996]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   58.699904][  T996]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   58.699906][  T996]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   58.699909][  T996]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   58.699911][  T996]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   58.699914][  T996]  kthread (kernel/kthread.c:436)
[   58.699915][  T996]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   58.699925][  T996]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   58.699928][  T996]  ret_from_fork (arch/x86/kernel/process.c:158)
[   58.699932][  T996]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   58.699936][  T996]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   58.699939][  T996]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   58.699942][  T996]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   64.968182][   T70] softirqs last disabled at (349828): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   64.968185][   T70] Preemption disabled at:
| [   64.968186][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.968198][   T70] Tainted: [W]=WARN
[   64.968199][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.968201][   T70] Workqueue: netns cleanup_net
[   64.968206][   T70] Call Trace:
[   64.968208][   T70]  <TASK>
[   64.968210][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.968218][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.968220][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.968226][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.968232][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.968238][   T70]  __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))
[   64.968242][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.968251][   T70]  ? 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)
[   64.968255][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.968261][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   64.968265][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.968267][   T70]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.968272][   T70]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.968276][   T70]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.968285][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.968289][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.968299][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.968304][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.968313][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.968319][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.968322][   T70]  ? 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))
[   64.968328][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.968331][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.968338][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.968345][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.968348][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.968358][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.968362][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.968365][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.968368][   T70]  ? 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)
[   64.968375][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.968378][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.968383][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.968389][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.968391][   T70]  ? cleanup_net (net/core/net_namespace.c:706)
[   64.968394][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.968397][   T70]  ? kthread (kernel/kthread.c:436)
[   64.968400][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   64.968403][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   64.968411][   T70]  _printk (kernel/printk/printk.c:2504)
[   64.968416][   T70]  ? snapshot_read.cold (user.c:?)
[   64.968424][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.968430][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.968437][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.968441][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   64.968449][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.968452][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   64.968457][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   64.968460][   T70]  ? 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)
[   64.968465][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   64.968472][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   64.968478][   T70]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   64.968493][   T70]  br_dev_delete (net/bridge/br_if.c:387)
[   64.968499][   T70]  br_net_exit_rtnl (net/bridge/br.c:414)
[   64.968505][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   64.968511][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   64.968516][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[   64.968519][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.968524][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   64.968532][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   64.968537][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.968544][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.968547][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.968553][   T70]  process_one_work (kernel/workqueue.c:3387)
[   64.968565][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   64.968570][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.968585][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.968592][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   64.968595][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   64.968599][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   64.968604][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   64.968608][   T70]  kthread (kernel/kthread.c:436)
[   64.968610][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.968615][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.968620][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.968624][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   64.968630][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.968635][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.968640][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   66.264332][ T1260] softirqs last disabled at (16900): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.264335][ T1260] Preemption disabled at:
| [   66.264336][ T1260] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.264347][ T1260] Tainted: [W]=WARN
[   66.264349][ T1260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.264351][ T1260] Call Trace:
[   66.264353][ T1260]  <TASK>
[   66.264355][ T1260]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.264363][ T1260]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.264365][ T1260]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.264371][ T1260]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.264377][ T1260]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.264384][ T1260]  __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))
[   66.264387][ T1260]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.264396][ T1260]  ? 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)
[   66.264400][ T1260]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.264406][ T1260]  put_chars (drivers/char/virtio_console.c:1176)
[   66.264410][ T1260]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.264421][ T1260]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.264433][ T1260]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.264438][ T1260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.264446][ T1260]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.264452][ T1260]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.264455][ T1260]  ? 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))
[   66.264460][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264464][ T1260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.264471][ T1260]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.264478][ T1260]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.264485][ T1260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.264494][ T1260]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.264498][ T1260]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.264501][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264504][ T1260]  ? 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)
[   66.264511][ T1260]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.264513][ T1260]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.264518][ T1260]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.264524][ T1260]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.264528][ T1260]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   66.264536][ T1260]  _printk (kernel/printk/printk.c:2504)
[   66.264541][ T1260]  ? snapshot_read.cold (user.c:?)
[   66.264544][ T1260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.264548][ T1260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.264552][ T1260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.264556][ T1260]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.264561][ T1260]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.264566][ T1260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.264569][ T1260]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.264574][ T1260]  ? netdev_notice (net/core/dev.c:13194)
[   66.264578][ T1260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.264583][ T1260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.264587][ T1260]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.264593][ T1260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.264597][ T1260]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.264600][ T1260]  ? register_netdev (net/core/dev.c:11618)
[   66.264602][ T1260]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   66.264611][ T1260]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.264615][ T1260]  ? __kernel_text_address (kernel/extable.c:79)
[   66.264618][ T1260]  ? write_profile (profile.c:?)
[   66.264624][ T1260]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.264633][ T1260]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.264638][ T1260]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.264642][ T1260]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.264644][ T1260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.264647][ T1260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.264652][ T1260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.264655][ T1260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.264658][ T1260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.264662][ T1260]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.264665][ T1260]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.264667][ T1260]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.264669][ T1260]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.264673][ T1260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.264675][ T1260]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.264680][ T1260]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.264686][ T1260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.264689][ T1260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.264693][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264696][ T1260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.264699][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264701][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264704][ T1260]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.264707][ T1260]  ? __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)
[   66.264709][ T1260]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.264713][ T1260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.264719][ T1260]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.264721][ T1260]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.264729][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264733][ T1260]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.264742][ T1260]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.264752][ T1260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.264755][ T1260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.264763][ T1260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.264766][ T1260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.264769][ T1260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.264772][ T1260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.264779][ T1260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.264782][ T1260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.264788][ T1260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.264790][ T1260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.264798][ T1260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.264801][ T1260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.264807][ T1260]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.264811][ T1260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.264816][ T1260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.264827][ T1260]  ? 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))
[   66.264830][ T1260]  ? 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))
[   66.264838][ T1260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.264845][ T1260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.264849][ T1260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.264856][ T1260]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.264863][ T1260]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.264869][ T1260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.264872][ T1260]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.264880][ T1260]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.264885][ T1260]  ____sys_sendmsg (net/socket.c:2713)
[   66.264889][ T1260]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.264892][ T1260]  ? sock_write_iter (net/socket.c:1269)
[   66.264895][ T1260]  ? move_addr_to_kernel (net/socket.c:258)
[   66.264909][ T1260]  ___sys_sendmsg (net/socket.c:2767)
[   66.264913][ T1260]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.264949][ T1260]  __sys_sendmsg (net/socket.c:2799)
[   66.264954][ T1260]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.264965][ T1260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.264970][ T1260]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.264974][ T1260]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.264979][ T1260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.264982][ T1260] RIP: 0033:0x7f536a65254e
[   66.264987][ T1260] 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
[   66.264989][ T1260] RSP: 002b:00007ffc656f5cb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.264993][ T1260] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f536a65254e
[   66.264995][ T1260] RDX: 0000000000000000 RSI: 00007ffc656f5d60 RDI: 0000000000000005
[   66.264996][ T1260] RBP: 00007ffc656f5cc0 R08: 0000000000000000 R09: 0000000000000000
[   66.264997][ T1260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918363
[   66.264999][ T1260] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc656f6420
| [   67.324621][ T1311] softirqs last disabled at (17330): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   67.324623][ T1311] Preemption disabled at:
| [   67.324624][ T1311] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.324632][ T1311] Tainted: [W]=WARN
[   67.324633][ T1311] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.324634][ T1311] Call Trace:
[   67.324636][ T1311]  <TASK>
[   67.324637][ T1311]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.324643][ T1311]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.324645][ T1311]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.324649][ T1311]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.324654][ T1311]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   67.324658][ T1311]  __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))
[   67.324660][ T1311]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.324667][ T1311]  ? 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)
[   67.324669][ T1311]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.324673][ T1311]  put_chars (drivers/char/virtio_console.c:1176)
[   67.324676][ T1311]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.324677][ T1311]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.324680][ T1311]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.324683][ T1311]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.324688][ T1311]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.324692][ T1311]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.324697][ T1311]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.324700][ T1311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.324705][ T1311]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.324709][ T1311]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.324711][ T1311]  ? 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))
[   67.324714][ T1311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.324716][ T1311]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.324720][ T1311]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.324724][ T1311]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.324726][ T1311]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.324732][ T1311]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.324734][ T1311]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.324736][ T1311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.324738][ T1311]  ? 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)
[   67.324742][ T1311]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.324743][ T1311]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.324746][ T1311]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.324749][ T1311]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.324751][ T1311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.324754][ T1311]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.324757][ T1311]  _printk (kernel/printk/printk.c:2504)
[   67.324761][ T1311]  ? snapshot_read.cold (user.c:?)
[   67.324765][ T1311]  ? br_multicast_flood (??:?)
[   67.324768][ T1311]  ? rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   67.324769][ T1311]  ? __rtnl_newlink (net/core/rtnetlink.c:4098)
[   67.324770][ T1311]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.324774][ T1311]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   67.324779][ T1311]  br_init_port (net/bridge/br_stp_if.c:39)
[   67.324781][ T1311]  new_nbp (net/bridge/br_if.c:449)
[   67.324785][ T1311]  br_add_if (net/bridge/br_if.c:592)
[   67.324787][ T1311]  ? netif_set_allmulti (./include/net/netdev_lock.h:33 ./include/net/netdev_lock.h:69 net/core/dev.c:9712)
[   67.324795][ T1311]  do_set_master (net/core/rtnetlink.c:3071)
[   67.324799][ T1311]  rtnl_newlink_create (net/core/rtnetlink.c:3982 (discriminator 1))
[   67.324802][ T1311]  ? rtnl_create_link (net/core/rtnetlink.c:3756)
[   67.324804][ T1311]  ? __dev_get_by_name (net/core/dev.c:905)
[   67.324806][ T1311]  ? rtnl_dev_get (net/core/rtnetlink.c:3538)
[   67.324815][ T1311]  __rtnl_newlink (net/core/rtnetlink.c:4098)
[   67.324822][ T1311]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.324827][ T1311]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.324829][ T1311]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.324836][ T1311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.324840][ T1311]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.324842][ T1311]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.324845][ T1311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.324846][ T1311]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.324851][ T1311]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.324853][ T1311]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.324857][ T1311]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.324860][ T1311]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.324863][ T1311]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.324869][ T1311]  ? 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))
[   67.324871][ T1311]  ? 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))
[   67.324876][ T1311]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.324880][ T1311]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.324886][ T1311]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.324890][ T1311]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.324894][ T1311]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.324896][ T1311]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.324901][ T1311]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.324905][ T1311]  ____sys_sendmsg (net/socket.c:2713)
[   67.324908][ T1311]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.324910][ T1311]  ? sock_write_iter (net/socket.c:1269)
[   67.324911][ T1311]  ? move_addr_to_kernel (net/socket.c:258)
[   67.324916][ T1311]  ? do_fault_around (./include/linux/rcupdate.h:882 mm/memory.c:5961)
[   67.324919][ T1311]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.324923][ T1311]  ___sys_sendmsg (net/socket.c:2767)
[   67.324924][ T1311]  ? do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   67.324927][ T1311]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.324929][ T1311]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   67.324950][ T1311]  __sys_sendmsg (net/socket.c:2799)
[   67.324953][ T1311]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.324958][ T1311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.324960][ T1311]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.324963][ T1311]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.324966][ T1311]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.324969][ T1311]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.324972][ T1311] RIP: 0033:0x7f6565f4c54e
[   67.324975][ T1311] 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
[   67.324977][ T1311] RSP: 002b:00007ffc05119e30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.324979][ T1311] RAX: ffffffffffffffda RBX: 00007ffc0511a5f8 RCX: 00007f6565f4c54e
[   67.324981][ T1311] RDX: 0000000000000000 RSI: 00007ffc05119ee0 RDI: 0000000000000005
[   67.324982][ T1311] RBP: 00007ffc05119e40 R08: 0000000000000000 R09: 0000000000000000
[   67.324982][ T1311] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918364
[   67.324983][ T1311] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc0511a5b0
| [   72.766662][   T37] softirqs last disabled at (246026): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   72.766665][   T37] Preemption disabled at:
| [   72.766665][   T37] 0x0
| [   72.766676][   T37] Tainted: [W]=WARN
[   72.766677][   T37] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   72.766679][   T37] Workqueue: events_unbound linkwatch_event
[   72.766682][   T37] Call Trace:
[   72.766684][   T37]  <TASK>
[   72.766685][   T37]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   72.766692][   T37]  __might_resched.cold (kernel/sched/core.c:9234)
[   72.766697][   T37]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   72.766702][   T37]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   72.766706][   T37]  __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))
[   72.766708][   T37]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   72.766715][   T37]  ? 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)
[   72.766718][   T37]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   72.766723][   T37]  put_chars (drivers/char/virtio_console.c:1176)
[   72.766725][   T37]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   72.766729][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   72.766732][   T37]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   72.766737][   T37]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   72.766741][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.766743][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.766748][   T37]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   72.766752][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.766754][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   72.766758][   T37]  console_emit_next_record (kernel/printk/printk.c:3183)
[   72.766763][   T37]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   72.766765][   T37]  ? 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))
[   72.766768][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.766770][   T37]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   72.766774][   T37]  console_flush_one_record (kernel/printk/printk.c:3268)
[   72.766779][   T37]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   72.766781][   T37]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.766787][   T37]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   72.766790][   T37]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   72.766792][   T37]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.766793][   T37]  ? 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)
[   72.766797][   T37]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   72.766799][   T37]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   72.766802][   T37]  vprintk_emit (kernel/printk/printk.c:2479)
[   72.766806][   T37]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   72.766807][   T37]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   72.766810][   T37]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   72.766812][   T37]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   72.766816][   T37]  _printk (kernel/printk/printk.c:2504)
[   72.766820][   T37]  ? snapshot_read.cold (user.c:?)
[   72.766823][   T37]  ? add_chain_block (kernel/locking/lockdep.c:3413 kernel/locking/lockdep.c:3454)
[   72.766830][   T37]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   72.766835][   T37]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   72.766838][   T37]  br_port_carrier_check (net/bridge/br_if.c:95)
[   72.766842][   T37]  br_device_event (net/bridge/br.c:101)
[   72.766846][   T37]  ? packet_sendmsg_spkt (af_packet.c:?)
[   72.766853][   T37]  notifier_call_chain (kernel/notifier.c:85)
[   72.766859][   T37]  netif_state_change (net/core/dev.c:1625)
[   72.766863][   T37]  ? dev_deactivate (net/sched/sch_generic.c:1419)
[   72.766867][   T37]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   72.766871][   T37]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   72.766874][   T37]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   72.766876][   T37]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   72.766879][   T37]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   72.766882][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.766886][   T37]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   72.766889][   T37]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   72.766893][   T37]  process_one_work (kernel/workqueue.c:3387)
[   72.766901][   T37]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   72.766904][   T37]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.766913][   T37]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   72.766920][   T37]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   72.766923][   T37]  kthread (kernel/kthread.c:436)
[   72.766925][   T37]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   72.766929][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   72.766932][   T37]  ret_from_fork (arch/x86/kernel/process.c:158)
[   72.766936][   T37]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   72.766939][   T37]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   72.766943][   T37]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   72.766946][   T37]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   81.868577][    C3] softirqs last disabled at (5071): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   81.868579][    C3] Preemption disabled at:
| [   81.868580][    C3] 0x0
| [   81.868589][    C3] Tainted: [W]=WARN
[   81.868590][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.868592][    C3] Call Trace:
[   81.868593][    C3]  <IRQ>
[   81.868595][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   81.868600][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   81.868604][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   81.868607][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   81.868611][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868613][    C3]  __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))
[   81.868616][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   81.868619][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.868623][    C3]  ? 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)
[   81.868625][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.868627][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   81.868629][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   81.868630][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   81.868633][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   81.868638][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   81.868640][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868641][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.868644][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   81.868646][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   81.868648][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868649][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868650][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.868652][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   81.868654][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   81.868656][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   81.868659][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   81.868661][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.868662][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   81.868664][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868665][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   81.868666][    C3]  ? 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)
[   81.868668][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   81.868670][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   81.868672][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   81.868673][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   81.868674][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868675][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   81.868677][    C3]  _printk (kernel/printk/printk.c:2504)
[   81.868680][    C3]  ? snapshot_read.cold (user.c:?)
[   81.868682][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   81.868685][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   81.868686][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   81.868688][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   81.868691][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   81.868693][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   81.868695][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   81.868697][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   81.868699][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.868701][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.868704][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868705][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.868707][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.868708][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   81.868710][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.868711][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.868712][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.868714][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   81.868717][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   81.868719][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   81.868722][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.868723][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.868725][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   81.868727][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   81.868729][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.868731][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   81.868732][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.868735][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   81.868738][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   81.868740][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   81.868741][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868743][    C3]  handle_softirqs (kernel/softirq.c:645)
[   81.868744][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.868746][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   81.868748][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   81.868750][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   81.868751][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   81.868753][    C3]  </IRQ>
[   81.868754][    C3]  <TASK>
[   81.868755][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   81.868757][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:143 (discriminator 1) mm/kasan/generic.c:172 (discriminator 1) mm/kasan/generic.c:191 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[   81.868759][    C3] Code: 48 83 38 00 74 ed 48 8d 48 08 eb 10 0f 1f 80 00 00 00 00 48 83 c0 01 48 39 c8 74 0a 80 38 00 74 f2 48 85 c0 75 18 48 8b 1c 24 <4c> 8b 74 24 08 b8 01 00 00 00 48 83 c4 18 c3 4c 8b 7c 24 10 48 39
All code
========
   0:	48 83 38 00          	cmpq   $0x0,(%rax)
   4:	74 ed                	je     0xfffffffffffffff3
   6:	48 8d 48 08          	lea    0x8(%rax),%rcx
   a:	eb 10                	jmp    0x1c
   c:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  13:	48 83 c0 01          	add    $0x1,%rax
  17:	48 39 c8             	cmp    %rcx,%rax
  1a:	74 0a                	je     0x26
  1c:	80 38 00             	cmpb   $0x0,(%rax)
  1f:	74 f2                	je     0x13
  21:	48 85 c0             	test   %rax,%rax
  24:	75 18                	jne    0x3e
  26:	48 8b 1c 24          	mov    (%rsp),%rbx
  2a:*	4c 8b 74 24 08       	mov    0x8(%rsp),%r14		<-- trapping instruction
  2f:	b8 01 00 00 00       	mov    $0x1,%eax
  34:	48 83 c4 18          	add    $0x18,%rsp
  38:	c3                   	ret
  39:	4c 8b 7c 24 10       	mov    0x10(%rsp),%r15
  3e:	48                   	rex.W
  3f:	39                   	.byte 0x39

Code starting with the faulting instruction
===========================================
   0:	4c 8b 74 24 08       	mov    0x8(%rsp),%r14
   5:	b8 01 00 00 00       	mov    $0x1,%eax
   a:	48 83 c4 18          	add    $0x18,%rsp
   e:	c3                   	ret
   f:	4c 8b 7c 24 10       	mov    0x10(%rsp),%r15
  14:	48                   	rex.W
  15:	39                   	.byte 0x39
[   81.868761][    C3] RSP: 0000:ffa000000302f910 EFLAGS: 00000246
[   81.868764][    C3] RAX: fff3fc0000605f30 RBX: dffffc0000000000 RCX: 0000000000000001
[   81.868765][    C3] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffa000000302f978
[   81.868766][    C3] RBP: 000000000000000e R08: ffffffff8e4de094 R09: 1ff4000000605f2f
[   81.868767][    C3] R10: fff3fc0000605f30 R11: fff3fc0000605f30 R12: ffa000000302f978
[   81.868768][    C3] R13: ffd4000000e932c0 R14: ffa000000302f97f R15: ffa000000302f998
[   81.868769][    C3]  ? folio_add_file_rmap_ptes (./include/linux/instrumented.h:41 ./include/asm-generic/bitops/instrumented-non-atomic.h:28 ./include/linux/mm.h:1122 ./include/linux/mm.h:1131 mm/internal.h:990 mm/rmap.c:1721 mm/rmap.c:1738)
[   81.868773][    C3]  folio_add_file_rmap_ptes (./include/linux/instrumented.h:41 ./include/asm-generic/bitops/instrumented-non-atomic.h:28 ./include/linux/mm.h:1122 ./include/linux/mm.h:1131 mm/internal.h:990 mm/rmap.c:1721 mm/rmap.c:1738)
[   81.868775][    C3]  ? folio_add_new_anon_rmap (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 mm/rmap.c:1686)
[   81.868777][    C3]  ? pte_offset_map_lock (./include/linux/spinlock.h:347 mm/pgtable-generic.c:404)
[   81.868779][    C3]  set_pte_range (mm/memory.c:5726)
[   81.868782][    C3]  filemap_map_pages (mm/filemap.c:3889 mm/filemap.c:3960)
[   81.868786][    C3]  ? filemap_update_page (mm/filemap.c:2607)
[   81.868788][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868789][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.868791][    C3]  do_fault_around (mm/memory.c:5958)
[   81.868792][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.868794][    C3]  ? filemap_update_page (mm/filemap.c:2607)
[   81.868795][    C3]  do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   81.868797][    C3]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   81.868798][    C3]  handle_pte_fault (mm/memory.c:6558)
[   81.868800][    C3]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   81.868802][    C3]  ? mksaveddirty_shift (./arch/x86/include/asm/pgtable.h:373)
[   81.868804][    C3]  __handle_mm_fault (mm/memory.c:6707)
[   81.868805][    C3]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   81.868806][    C3]  ? __pmd_alloc (./include/linux/mm.h:1762)
[   81.868809][    C3]  handle_mm_fault (mm/memory.c:6876)
[   81.868811][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.868812][    C3]  do_user_addr_fault (arch/x86/mm/fault.c:1343)
[   81.868816][    C3]  ? irqentry_enter (./include/linux/irq-entry-common.h:108 ./include/linux/irq-entry-common.h:293 kernel/entry/common.c:116)
[   81.868817][    C3]  exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   81.868819][    C3]  asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:595)
[   81.868820][    C3] RIP: 0033:0x7f507c9aa264
[   81.868822][    C3] Code: 84 00 00 00 00 00 8b 4a 04 48 83 c0 13 48 83 e0 f8 48 8d 44 08 07 48 83 e0 f8 48 01 c2 48 8d 04 32 4c 39 c0 0f 83 ec 00 00 00 <8b> 02 83 f8 04 75 d5 83 7a 08 05 75 cf 81 7a 0c 47 4e 55 00 75 c6
All code
========
   0:	84 00                	test   %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	8b 4a 04             	mov    0x4(%rdx),%ecx
   9:	48 83 c0 13          	add    $0x13,%rax
   d:	48 83 e0 f8          	and    $0xfffffffffffffff8,%rax
  11:	48 8d 44 08 07       	lea    0x7(%rax,%rcx,1),%rax
  16:	48 83 e0 f8          	and    $0xfffffffffffffff8,%rax
  1a:	48 01 c2             	add    %rax,%rdx
  1d:	48 8d 04 32          	lea    (%rdx,%rsi,1),%rax
  21:	4c 39 c0             	cmp    %r8,%rax
  24:	0f 83 ec 00 00 00    	jae    0x116
  2a:*	8b 02                	mov    (%rdx),%eax		<-- trapping instruction
  2c:	83 f8 04             	cmp    $0x4,%eax
  2f:	75 d5                	jne    0x6
  31:	83 7a 08 05          	cmpl   $0x5,0x8(%rdx)
  35:	75 cf                	jne    0x6
  37:	81 7a 0c 47 4e 55 00 	cmpl   $0x554e47,0xc(%rdx)
  3e:	75 c6                	jne    0x6

Code starting with the faulting instruction
===========================================
   0:	8b 02                	mov    (%rdx),%eax
   2:	83 f8 04             	cmp    $0x4,%eax
   5:	75 d5                	jne    0xffffffffffffffdc
   7:	83 7a 08 05          	cmpl   $0x5,0x8(%rdx)
   b:	75 cf                	jne    0xffffffffffffffdc
   d:	81 7a 0c 47 4e 55 00 	cmpl   $0x554e47,0xc(%rdx)
  14:	75 c6                	jne    0xffffffffffffffdc
[   81.868823][    C3] RSP: 002b:00007ffcdbbce8d8 EFLAGS: 00010283
[   81.868824][    C3] RAX: 00007f507c95c430 RBX: 00007f507c999d40 RCX: 00007f507c95f630
[   81.868825][    C3] RDX: 00007f507c95c430 RSI: ffff80af836a3bdc RDI: 00007f507c999d40
[   81.868826][    C3] RBP: 00007ffcdbbcea40 R08: 0000000000000040 R09: 000000000000000f
[   81.868826][    C3] R10: 00000000effffef5 R11: 0000000000000039 R12: 0000000000000003
[   81.868827][    C3] R13: 00007f507c8f4200 R14: 0000000000000005 R15: 00007f507c960120
| [   81.942426][    C3]
| [   81.942498][    C3]
| [   81.942498][    C3] stack backtrace:
| [   81.942775][    C3] Tainted: [W]=WARN
[   81.942776][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.942777][    C3] Call Trace:
[   81.942778][    C3]  <IRQ>
[   81.942779][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   81.942784][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   81.942786][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   81.942789][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   81.942791][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   81.942793][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   81.942795][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.942797][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.942799][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.942801][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.942802][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.942804][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   81.942805][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.942806][    C3]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   81.942808][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.942809][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   81.942811][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   81.942813][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   81.942816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.942818][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.942820][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   81.942822][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   81.942824][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   81.942825][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   81.942827][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.942830][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   81.942833][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   81.942835][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   81.942836][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.942838][    C3]  handle_softirqs (kernel/softirq.c:645)
[   81.942840][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.942841][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   81.942843][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   81.942845][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   81.942846][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   81.942848][    C3]  </IRQ>
[   81.942848][    C3]  <TASK>
[   81.942849][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   81.942850][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:143 (discriminator 1) mm/kasan/generic.c:172 (discriminator 1) mm/kasan/generic.c:191 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[   81.942852][    C3] Code: 48 83 38 00 74 ed 48 8d 48 08 eb 10 0f 1f 80 00 00 00 00 48 83 c0 01 48 39 c8 74 0a 80 38 00 74 f2 48 85 c0 75 18 48 8b 1c 24 <4c> 8b 74 24 08 b8 01 00 00 00 48 83 c4 18 c3 4c 8b 7c 24 10 48 39
All code
========
   0:	48 83 38 00          	cmpq   $0x0,(%rax)
   4:	74 ed                	je     0xfffffffffffffff3
   6:	48 8d 48 08          	lea    0x8(%rax),%rcx
   a:	eb 10                	jmp    0x1c
   c:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  13:	48 83 c0 01          	add    $0x1,%rax
  17:	48 39 c8             	cmp    %rcx,%rax
  1a:	74 0a                	je     0x26
  1c:	80 38 00             	cmpb   $0x0,(%rax)
  1f:	74 f2                	je     0x13
  21:	48 85 c0             	test   %rax,%rax
  24:	75 18                	jne    0x3e
  26:	48 8b 1c 24          	mov    (%rsp),%rbx
  2a:*	4c 8b 74 24 08       	mov    0x8(%rsp),%r14		<-- trapping instruction
  2f:	b8 01 00 00 00       	mov    $0x1,%eax
  34:	48 83 c4 18          	add    $0x18,%rsp
  38:	c3                   	ret
  39:	4c 8b 7c 24 10       	mov    0x10(%rsp),%r15
  3e:	48                   	rex.W
  3f:	39                   	.byte 0x39

Code starting with the faulting instruction
===========================================
   0:	4c 8b 74 24 08       	mov    0x8(%rsp),%r14
   5:	b8 01 00 00 00       	mov    $0x1,%eax
   a:	48 83 c4 18          	add    $0x18,%rsp
   e:	c3                   	ret
   f:	4c 8b 7c 24 10       	mov    0x10(%rsp),%r15
  14:	48                   	rex.W
  15:	39                   	.byte 0x39
[   81.942854][    C3] RSP: 0000:ffa000000302f910 EFLAGS: 00000246
[   81.942856][    C3] RAX: fff3fc0000605f30 RBX: dffffc0000000000 RCX: 0000000000000001
[   81.942857][    C3] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffa000000302f978
[   81.942858][    C3] RBP: 000000000000000e R08: ffffffff8e4de094 R09: 1ff4000000605f2f
[   81.942858][    C3] R10: fff3fc0000605f30 R11: fff3fc0000605f30 R12: ffa000000302f978
[   81.942859][    C3] R13: ffd4000000e932c0 R14: ffa000000302f97f R15: ffa000000302f998
[   81.942861][    C3]  ? folio_add_file_rmap_ptes (./include/linux/instrumented.h:41 ./include/asm-generic/bitops/instrumented-non-atomic.h:28 ./include/linux/mm.h:1122 ./include/linux/mm.h:1131 mm/internal.h:990 mm/rmap.c:1721 mm/rmap.c:1738)
[   81.942863][    C3]  folio_add_file_rmap_ptes (./include/linux/instrumented.h:41 ./include/asm-generic/bitops/instrumented-non-atomic.h:28 ./include/linux/mm.h:1122 ./include/linux/mm.h:1131 mm/internal.h:990 mm/rmap.c:1721 mm/rmap.c:1738)
[   81.942865][    C3]  ? folio_add_new_anon_rmap (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 mm/rmap.c:1686)
[   81.942867][    C3]  ? pte_offset_map_lock (./include/linux/spinlock.h:347 mm/pgtable-generic.c:404)
[   81.942869][    C3]  set_pte_range (mm/memory.c:5726)
[   81.942871][    C3]  filemap_map_pages (mm/filemap.c:3889 mm/filemap.c:3960)
[   81.942874][    C3]  ? filemap_update_page (mm/filemap.c:2607)
[   81.942876][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.942877][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.942879][    C3]  do_fault_around (mm/memory.c:5958)
[   81.942880][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.942882][    C3]  ? filemap_update_page (mm/filemap.c:2607)
[   81.942883][    C3]  do_pte_missing (mm/memory.c:5991 mm/memory.c:6134 mm/memory.c:4700)
[   81.942885][    C3]  ? rcu_read_unlock (./include/linux/rcupdate.h:878 (discriminator 6))
[   81.942886][    C3]  handle_pte_fault (mm/memory.c:6558)
[   81.942888][    C3]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   81.942890][    C3]  ? mksaveddirty_shift (./arch/x86/include/asm/pgtable.h:373)
[   81.942891][    C3]  __handle_mm_fault (mm/memory.c:6707)
[   81.942893][    C3]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   81.942895][    C3]  ? __pmd_alloc (./include/linux/mm.h:1762)
[   81.942899][    C3]  handle_mm_fault (mm/memory.c:6876)
[   81.942901][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.942902][    C3]  do_user_addr_fault (arch/x86/mm/fault.c:1343)
[   81.942905][    C3]  ? irqentry_enter (./include/linux/irq-entry-common.h:108 ./include/linux/irq-entry-common.h:293 kernel/entry/common.c:116)
[   81.942907][    C3]  exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   81.942908][    C3]  asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:595)
[   81.942909][    C3] RIP: 0033:0x7f507c9aa264
[   81.942911][    C3] Code: 84 00 00 00 00 00 8b 4a 04 48 83 c0 13 48 83 e0 f8 48 8d 44 08 07 48 83 e0 f8 48 01 c2 48 8d 04 32 4c 39 c0 0f 83 ec 00 00 00 <8b> 02 83 f8 04 75 d5 83 7a 08 05 75 cf 81 7a 0c 47 4e 55 00 75 c6
All code
========
   0:	84 00                	test   %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	8b 4a 04             	mov    0x4(%rdx),%ecx
   9:	48 83 c0 13          	add    $0x13,%rax
   d:	48 83 e0 f8          	and    $0xfffffffffffffff8,%rax
  11:	48 8d 44 08 07       	lea    0x7(%rax,%rcx,1),%rax
  16:	48 83 e0 f8          	and    $0xfffffffffffffff8,%rax
  1a:	48 01 c2             	add    %rax,%rdx
  1d:	48 8d 04 32          	lea    (%rdx,%rsi,1),%rax
  21:	4c 39 c0             	cmp    %r8,%rax
  24:	0f 83 ec 00 00 00    	jae    0x116
  2a:*	8b 02                	mov    (%rdx),%eax		<-- trapping instruction
  2c:	83 f8 04             	cmp    $0x4,%eax
  2f:	75 d5                	jne    0x6
  31:	83 7a 08 05          	cmpl   $0x5,0x8(%rdx)
  35:	75 cf                	jne    0x6
  37:	81 7a 0c 47 4e 55 00 	cmpl   $0x554e47,0xc(%rdx)
  3e:	75 c6                	jne    0x6

Code starting with the faulting instruction
===========================================
   0:	8b 02                	mov    (%rdx),%eax
   2:	83 f8 04             	cmp    $0x4,%eax
   5:	75 d5                	jne    0xffffffffffffffdc
   7:	83 7a 08 05          	cmpl   $0x5,0x8(%rdx)
   b:	75 cf                	jne    0xffffffffffffffdc
   d:	81 7a 0c 47 4e 55 00 	cmpl   $0x554e47,0xc(%rdx)
  14:	75 c6                	jne    0xffffffffffffffdc
[   81.942912][    C3] RSP: 002b:00007ffcdbbce8d8 EFLAGS: 00010283
[   81.942913][    C3] RAX: 00007f507c95c430 RBX: 00007f507c999d40 RCX: 00007f507c95f630
[   81.942914][    C3] RDX: 00007f507c95c430 RSI: ffff80af836a3bdc RDI: 00007f507c999d40
[   81.942915][    C3] RBP: 00007ffcdbbcea40 R08: 0000000000000040 R09: 000000000000000f
[   81.942916][    C3] R10: 00000000effffef5 R11: 0000000000000039 R12: 0000000000000003
[   81.942916][    C3] R13: 00007f507c8f4200 R14: 0000000000000005 R15: 00007f507c960120
| [  102.883214][   T70] softirqs last disabled at (474118): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [  102.883216][   T70] Preemption disabled at:
| [  102.883217][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [  102.883227][   T70] Tainted: [W]=WARN
[  102.883228][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  102.883230][   T70] Workqueue: netns cleanup_net
[  102.883236][   T70] Call Trace:
[  102.883237][   T70]  <TASK>
[  102.883239][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  102.883245][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  102.883246][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[  102.883249][   T70]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[  102.883252][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  102.883255][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883258][   T70]  __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))
[  102.883261][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  102.883264][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.883268][   T70]  ? 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)
[  102.883270][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.883272][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[  102.883274][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  102.883276][   T70]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  102.883278][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  102.883283][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  102.883285][   T70]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[  102.883287][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  102.883289][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883290][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883292][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[  102.883294][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  102.883297][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883297][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883298][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883299][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.883302][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  102.883304][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[  102.883306][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  102.883309][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  102.883311][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.883312][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  102.883314][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883315][   T70]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  102.883317][   T70]  ? 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)
[  102.883318][   T70]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[  102.883320][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  102.883322][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  102.883323][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[  102.883325][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  102.883326][   T70]  ? cleanup_net (net/core/net_namespace.c:706)
[  102.883328][   T70]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  102.883331][   T70]  ? kthread (kernel/kthread.c:436)
[  102.883333][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  102.883336][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  102.883338][   T70]  _printk (kernel/printk/printk.c:2504)
[  102.883341][   T70]  ? snapshot_read.cold (user.c:?)
[  102.883344][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  102.883347][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  102.883349][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  102.883351][   T70]  ? netdev_notice (net/core/dev.c:13194)
[  102.883354][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883355][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[  102.883356][   T70]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  102.883359][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[  102.883361][   T70]  ? 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)
[  102.883362][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[  102.883364][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[  102.883367][   T70]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[  102.883370][   T70]  br_dev_delete (net/bridge/br_if.c:387)
[  102.883373][   T70]  br_net_exit_rtnl (net/bridge/br.c:414)
[  102.883375][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[  102.883377][   T70]  ? netns_install (./include/linux/ns_common.h:26)
[  102.883379][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  102.883382][   T70]  cleanup_net (net/core/net_namespace.c:706)
[  102.883384][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[  102.883385][   T70]  ? update_load_avg (kernel/sched/fair.c:5864)
[  102.883388][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.883390][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.883392][   T70]  process_one_work (kernel/workqueue.c:3387)
[  102.883394][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  102.883397][   T70]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.883399][   T70]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  102.883401][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  102.883403][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  102.883405][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[  102.883407][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  102.883409][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  102.883411][   T70]  kthread (kernel/kthread.c:436)
[  102.883413][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  102.883414][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  102.883416][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[  102.883418][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  102.883420][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  102.883423][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars