======================================
| [   11.615915][  T196] softirqs last disabled at (21508): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.615917][  T196] Preemption disabled at:
| [   11.615917][  T196] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.615927][  T196] Tainted: [W]=WARN
[   11.615927][  T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.615929][  T196] Call Trace:
[   11.615931][  T196]  <TASK>
[   11.615933][  T196]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.615938][  T196]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.615940][  T196]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.615944][  T196]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.615948][  T196]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.615954][  T196]  __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))
[   11.615958][  T196]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.615964][  T196]  ? 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)
[   11.615966][  T196]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.615970][  T196]  put_chars (drivers/char/virtio_console.c:1176)
[   11.615973][  T196]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.615975][  T196]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.615978][  T196]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.615984][  T196]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.615992][  T196]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.615995][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.615998][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.616003][  T196]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.616006][  T196]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.616010][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616012][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.616016][  T196]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.616020][  T196]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.616022][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.616027][  T196]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.616030][  T196]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.616031][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616033][  T196]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.616037][  T196]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.616039][  T196]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.616042][  T196]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.616045][  T196]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.616047][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.616049][  T196]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.616054][  T196]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.616058][  T196]  _printk (kernel/printk/printk.c:2504)
[   11.616061][  T196]  ? snapshot_read.cold (user.c:?)
[   11.616065][  T196]  ? br_multicast_flood (??:?)
[   11.616068][  T196]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.616070][  T196]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.616072][  T196]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.616077][  T196]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.616080][  T196]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.616083][  T196]  new_nbp (net/bridge/br_if.c:449)
[   11.616087][  T196]  br_add_if (net/bridge/br_if.c:592)
[   11.616090][  T196]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.616096][  T196]  do_set_master (net/core/rtnetlink.c:3071)
[   11.616100][  T196]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.616104][  T196]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.616108][  T196]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.616110][  T196]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.616113][  T196]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.616116][  T196]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.616118][  T196]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.616121][  T196]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.616123][  T196]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.616126][  T196]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.616127][  T196]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.616129][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.616131][  T196]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.616135][  T196]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.616139][  T196]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.616141][  T196]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.616144][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616146][  T196]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.616148][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616149][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616151][  T196]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.616154][  T196]  ? __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)
[   11.616155][  T196]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.616157][  T196]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.616161][  T196]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.616163][  T196]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.616169][  T196]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.616175][  T196]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.616181][  T196]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.616183][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.616188][  T196]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.616190][  T196]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.616193][  T196]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.616195][  T196]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.616199][  T196]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.616202][  T196]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.616205][  T196]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.616207][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.616212][  T196]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.616214][  T196]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.616218][  T196]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.616220][  T196]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.616224][  T196]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.616230][  T196]  ? 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))
[   11.616232][  T196]  ? 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))
[   11.616236][  T196]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.616240][  T196]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.616243][  T196]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.616248][  T196]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.616252][  T196]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.616256][  T196]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.616262][  T196]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.616264][  T196]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.616266][  T196]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.616267][  T196]  ? move_addr_to_kernel (net/socket.c:258)
[   11.616275][  T196]  ___sys_sendmsg (net/socket.c:2767)
[   11.616277][  T196]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.616294][  T196]  __sys_sendmsg (net/socket.c:2799)
[   11.616296][  T196]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.616302][  T196]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.616306][  T196]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.616308][  T196]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.616311][  T196]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.616313][  T196] RIP: 0033:0x7f2b6167d54e
[   11.616317][  T196] 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
[   11.616319][  T196] RSP: 002b:00007fff6c0dcd70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.616322][  T196] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2b6167d54e
[   11.616323][  T196] RDX: 0000000000000000 RSI: 00007fff6c0dce20 RDI: 0000000000000005
[   11.616324][  T196] RBP: 00007fff6c0dcd80 R08: 0000000000000000 R09: 0000000000000000
[   11.616325][  T196] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912b04
[   11.616326][  T196] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6c0dd4f0
| [   15.798969][   T46] softirqs last disabled at (66848): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   15.798972][   T46] Preemption disabled at:
| [   15.798972][   T46] 0x0
| [   15.798983][   T46] Tainted: [W]=WARN
[   15.798984][   T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.798986][   T46] Workqueue: events_unbound linkwatch_event
[   15.798990][   T46] Call Trace:
[   15.798992][   T46]  <TASK>
[   15.798993][   T46]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.798999][   T46]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.799003][   T46]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.799007][   T46]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.799013][   T46]  __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))
[   15.799016][   T46]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.799022][   T46]  ? 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)
[   15.799024][   T46]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.799028][   T46]  put_chars (drivers/char/virtio_console.c:1176)
[   15.799031][   T46]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.799033][   T46]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.799035][   T46]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.799039][   T46]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.799046][   T46]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.799053][   T46]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.799056][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.799058][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.799063][   T46]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.799067][   T46]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.799071][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.799073][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.799077][   T46]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.799081][   T46]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.799083][   T46]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.799088][   T46]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.799091][   T46]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.799092][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.799094][   T46]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.799098][   T46]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.799100][   T46]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.799103][   T46]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.799107][   T46]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.799108][   T46]  ? fib6_ifup (net/ipv6/route.c:4905)
[   15.799111][   T46]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.799113][   T46]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.799115][   T46]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.799120][   T46]  _printk (kernel/printk/printk.c:2504)
[   15.799124][   T46]  ? snapshot_read.cold (user.c:?)
[   15.799127][   T46]  ? down_read_nested (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2629 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3224 kernel/locking/rwsem.c:177 kernel/locking/rwsem.c:182 kernel/locking/rwsem.c:257 kernel/locking/rwsem.c:1290 kernel/locking/rwsem.c:1304 kernel/locking/rwsem.c:1710)
[   15.799133][   T46]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   15.799138][   T46]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   15.799142][   T46]  br_port_carrier_check (net/bridge/br_if.c:95)
[   15.799146][   T46]  br_device_event (net/bridge/br.c:101)
[   15.799149][   T46]  ? packet_sendmsg_spkt (af_packet.c:?)
[   15.799156][   T46]  notifier_call_chain (kernel/notifier.c:85)
[   15.799162][   T46]  netif_state_change (net/core/dev.c:1625)
[   15.799165][   T46]  ? dev_deactivate (net/sched/sch_generic.c:1429)
[   15.799170][   T46]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   15.799174][   T46]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   15.799176][   T46]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   15.799179][   T46]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   15.799182][   T46]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.799186][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.799190][   T46]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   15.799193][   T46]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   15.799197][   T46]  process_one_work (kernel/workqueue.c:3387)
[   15.799203][   T46]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   15.799206][   T46]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.799214][   T46]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   15.799221][   T46]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   15.799223][   T46]  kthread (kernel/kthread.c:436)
[   15.799225][   T46]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   15.799229][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   15.799232][   T46]  ret_from_fork (arch/x86/kernel/process.c:158)
[   15.799237][   T46]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   15.799241][   T46]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   15.799244][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   15.799247][   T46]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   17.142336][  T241] softirqs last disabled at (18508): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   17.142338][  T241] Preemption disabled at:
| [   17.142339][  T241] 0x0
| [   17.142349][  T241] Tainted: [W]=WARN
[   17.142350][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.142352][  T241] Call Trace:
[   17.142354][  T241]  <TASK>
[   17.142356][  T241]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.142362][  T241]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.142367][  T241]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.142370][  T241]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.142376][  T241]  __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))
[   17.142379][  T241]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.142385][  T241]  ? 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)
[   17.142387][  T241]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.142391][  T241]  put_chars (drivers/char/virtio_console.c:1176)
[   17.142394][  T241]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1929)
[   17.142397][  T241]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.142404][  T241]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.142412][  T241]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.142415][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.142420][  T241]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.142424][  T241]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.142428][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142431][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.142435][  T241]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.142439][  T241]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.142441][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.142447][  T241]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.142449][  T241]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.142450][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142452][  T241]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.142456][  T241]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.142458][  T241]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.142462][  T241]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.142465][  T241]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.142467][  T241]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.142469][  T241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.142472][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.142477][  T241]  _printk (kernel/printk/printk.c:2504)
[   17.142480][  T241]  ? snapshot_read.cold (user.c:?)
[   17.142490][  T241]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   17.142495][  T241]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   17.142499][  T241]  br_device_event (net/bridge/br.c:111)
[   17.142501][  T241]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.142505][  T241]  ? packet_sendmsg_spkt (af_packet.c:?)
[   17.142511][  T241]  notifier_call_chain (kernel/notifier.c:85)
[   17.142517][  T241]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   17.142522][  T241]  ? netif_change_name (net/core/dev.c:1517)
[   17.142525][  T241]  ? __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   17.142527][  T241]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   17.142530][  T241]  ? __kernel_text_address (kernel/extable.c:79)
[   17.142533][  T241]  ? write_profile (profile.c:?)
[   17.142538][  T241]  netif_change_flags (net/core/dev.c:9882)
[   17.142542][  T241]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   17.142546][  T241]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.142548][  T241]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.142550][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.142552][  T241]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.142555][  T241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.142558][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.142560][  T241]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.142563][  T241]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.142565][  T241]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.142566][  T241]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.142569][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.142571][  T241]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   17.142574][  T241]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.142579][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.142581][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.142584][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142586][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.142588][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142590][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142592][  T241]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.142594][  T241]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   17.142596][  T241]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.142598][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.142602][  T241]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.142607][  T241]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.142613][  T241]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.142619][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.142621][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.142626][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.142629][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.142631][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.142633][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.142638][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.142640][  T241]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.142644][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.142646][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.142651][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.142653][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.142657][  T241]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.142659][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.142663][  T241]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.142669][  T241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.142671][  T241]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.142675][  T241]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.142679][  T241]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.142685][  T241]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.142689][  T241]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.142693][  T241]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.142699][  T241]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.142701][  T241]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.142703][  T241]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.142705][  T241]  ? move_addr_to_kernel (net/socket.c:258)
[   17.142712][  T241]  ___sys_sendmsg (net/socket.c:2767)
[   17.142715][  T241]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.142731][  T241]  __sys_sendmsg (net/socket.c:2799)
[   17.142734][  T241]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.142740][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.142743][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.142745][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.142748][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.142751][  T241] RIP: 0033:0x7f0983bf854e
[   17.142753][  T241] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.142755][  T241] RSP: 002b:00007fff7628cca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.142758][  T241] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0983bf854e
[   17.142759][  T241] RDX: 0000000000000000 RSI: 00007fff7628cd50 RDI: 0000000000000005
[   17.142760][  T241] RBP: 00007fff7628ccb0 R08: 0000000000000000 R09: 0000000000000000
[   17.142761][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912b09
[   17.142762][  T241] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7628d420
| [   20.819851][   T38] softirqs last disabled at (80834): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87)
| [   20.819854][   T38] Preemption disabled at:
| [   20.819854][   T38] 0x0
| [   20.819873][   T38] Tainted: [W]=WARN
[   20.819874][   T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.819876][   T38] Workqueue: events_unbound linkwatch_event
[   20.819880][   T38] Call Trace:
[   20.819881][   T38]  <TASK>
[   20.819883][   T38]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.819889][   T38]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.819894][   T38]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.819898][   T38]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.819904][   T38]  __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))
[   20.819906][   T38]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.819913][   T38]  ? 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)
[   20.819915][   T38]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.819919][   T38]  put_chars (drivers/char/virtio_console.c:1176)
[   20.819923][   T38]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.819927][   T38]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.819933][   T38]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.819940][   T38]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.819943][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.819947][   T38]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.819952][   T38]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.819955][   T38]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.819960][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.819962][   T38]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.819966][   T38]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.819970][   T38]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.819972][   T38]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.819978][   T38]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.819980][   T38]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.819982][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.819984][   T38]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.819988][   T38]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.819990][   T38]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.819993][   T38]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.819997][   T38]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.819999][   T38]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.820001][   T38]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.820003][   T38]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.820009][   T38]  _printk (kernel/printk/printk.c:2504)
[   20.820013][   T38]  ? snapshot_read.cold (user.c:?)
[   20.820018][   T38]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.820023][   T38]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   20.820027][   T38]  br_init_port (net/bridge/br_stp_if.c:39)
[   20.820030][   T38]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   20.820032][   T38]  br_port_carrier_check (net/bridge/br_if.c:90)
[   20.820036][   T38]  br_device_event (net/bridge/br.c:101)
[   20.820038][   T38]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   20.820042][   T38]  ? packet_sendmsg_spkt (af_packet.c:?)
[   20.820048][   T38]  notifier_call_chain (kernel/notifier.c:85)
[   20.820055][   T38]  netif_state_change (net/core/dev.c:1625)
[   20.820060][   T38]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   20.820064][   T38]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   20.820067][   T38]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   20.820071][   T38]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.820074][   T38]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.820079][   T38]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   20.820082][   T38]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   20.820086][   T38]  process_one_work (kernel/workqueue.c:3387)
[   20.820092][   T38]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   20.820095][   T38]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.820103][   T38]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   20.820110][   T38]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   20.820112][   T38]  kthread (kernel/kthread.c:436)
[   20.820115][   T38]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.820119][   T38]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   20.820122][   T38]  ret_from_fork (arch/x86/kernel/process.c:158)
[   20.820126][   T38]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   20.820130][   T38]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   20.820134][   T38]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   20.820137][   T38]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.628583][    C0] softirqs last disabled at (6199): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   32.628586][    C0] Preemption disabled at:
| [   32.628586][    C0] handle_softirqs (kernel/softirq.c:486 (discriminator 1) kernel/softirq.c:621 (discriminator 1))
| [   32.628596][    C0] Tainted: [W]=WARN
[   32.628597][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.628599][    C0] Call Trace:
[   32.628601][    C0]  <IRQ>
[   32.628602][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   32.628607][    C0]  ? handle_softirqs (kernel/softirq.c:486 (discriminator 1) kernel/softirq.c:621 (discriminator 1))
[   32.628609][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   32.628613][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   32.628616][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628620][    C0]  __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))
[   32.628624][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   32.628626][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   32.628631][    C0]  ? 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)
[   32.628632][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   32.628635][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   32.628637][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   32.628639][    C0]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   32.628642][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   32.628643][    C0]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   32.628646][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   32.628650][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   32.628652][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   32.628654][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628655][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628656][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.628659][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   32.628662][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   32.628663][    C0]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   32.628665][    C0]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   32.628668][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628669][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628670][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.628673][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   32.628674][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   32.628676][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   32.628678][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   32.628679][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.628681][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   32.628682][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628684][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   32.628685][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   32.628688][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   32.628690][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   32.628692][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   32.628694][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   32.628695][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628697][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   32.628699][    C0]  _printk (kernel/printk/printk.c:2504)
[   32.628703][    C0]  ? snapshot_read.cold (user.c:?)
[   32.628704][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   32.628708][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   32.628710][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   32.628712][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   32.628715][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   32.628718][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   32.628720][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   32.628722][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   32.628725][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   32.628727][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.628730][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628732][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.628734][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.628735][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   32.628737][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.628739][    C0]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.628740][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.628742][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   32.628745][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   32.628746][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   32.628749][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.628751][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.628753][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628755][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   32.628757][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.628759][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   32.628760][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.628763][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   32.628765][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   32.628767][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   32.628768][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.628771][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628772][    C0]  handle_softirqs (kernel/softirq.c:645)
[   32.628775][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.628776][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   32.628779][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   32.628781][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   32.628783][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   32.628785][    C0]  </IRQ>
[   32.628786][    C0]  <TASK>
[   32.628787][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   32.628789][    C0] RIP: 0010:__rcu_read_lock (kernel/rcu/tree_plugin.h:413)
[   32.628792][    C0] Code: ff ff e8 8f ea 7c 00 e9 8b fc ff ff 48 89 de 48 c7 c7 80 2a 7c 8a e8 8b f4 fe 00 e9 54 fc ff ff 66 0f 1f 44 00 00 f3 0f 1e fa <0f> 1f 44 00 00 65 48 8b 05 bf 97 58 04 48 ba 00 00 00 00 00 fc ff
All code
========
   0:	ff                   	(bad)
   1:	ff                   	ljmp   (bad)
   2:	e8 8f ea 7c 00       	call   0x7cea96
   7:	e9 8b fc ff ff       	jmp    0xfffffffffffffc97
   c:	48 89 de             	mov    %rbx,%rsi
   f:	48 c7 c7 80 2a 7c 8a 	mov    $0xffffffff8a7c2a80,%rdi
  16:	e8 8b f4 fe 00       	call   0xfef4a6
  1b:	e9 54 fc ff ff       	jmp    0xfffffffffffffc74
  20:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
  26:	f3 0f 1e fa          	endbr64
  2a:*	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)		<-- trapping instruction
  2f:	65 48 8b 05 bf 97 58 	mov    %gs:0x45897bf(%rip),%rax        # 0x45897f6
  36:	04 
  37:	48                   	rex.W
  38:	ba 00 00 00 00       	mov    $0x0,%edx
  3d:	00 fc                	add    %bh,%ah
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   5:	65 48 8b 05 bf 97 58 	mov    %gs:0x45897bf(%rip),%rax        # 0x45897cc
   c:	04 
   d:	48                   	rex.W
   e:	ba 00 00 00 00       	mov    $0x0,%edx
  13:	00 fc                	add    %bh,%ah
  15:	ff                   	.byte 0xff
[   32.628794][    C0] RSP: 0018:ffa0000001fa79d0 EFLAGS: 00000213
[   32.628797][    C0] RAX: 0000000000002f80 RBX: ffa0000001fa7c20 RCX: ff1100000178b738
[   32.628799][    C0] RDX: ff11000035100000 RSI: ffa0000001fa7c30 RDI: ff1100000178b738
[   32.628800][    C0] RBP: 0000000017c07e8f R08: fefefefefefefeff R09: 0000000000000000
[   32.628801][    C0] R10: 0000000000727375 R11: ff1100000cd3c000 R12: ff11000035117c00
[   32.628802][    C0] R13: ff1100000178b738 R14: ffa0000001fa7c30 R15: ffffffff8aa3df80
[   32.628804][    C0]  __d_lookup (./include/linux/rcupdate.h:847 fs/dcache.c:2615)
[   32.628808][    C0]  lookup_fast (fs/namei.c:1878)
[   32.628811][    C0]  ? inode_permission (fs/namei.c:583 fs/namei.c:653)
[   32.628813][    C0]  link_path_walk (fs/namei.c:2278 fs/namei.c:2656)
[   32.628816][    C0]  ? path_init (fs/namei.c:2720)
[   32.628817][    C0]  ? __raw_spin_lock_init (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/spinlock_debug.c:25)
[   32.628819][    C0]  ? vfs_rename (./include/linux/list.h:457 (discriminator 5))
[   32.628821][    C0]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   32.628823][    C0]  ? init_file.isra.0 (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 ./include/linux/file_ref.h:61 fs/file_table.c:229)
[   32.628825][    C0]  path_openat (fs/namei.c:4996 (discriminator 1))
[   32.628827][    C0]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.628830][    C0]  ? kernel_tmpfile_open (fs/namei.c:4942)
[   32.628832][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   32.628834][    C0]  do_file_open (fs/namei.c:5029)
[   32.628837][    C0]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[   32.628838][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.628841][    C0]  ? page_get_link_raw (fs/namei.c:6482)
[   32.628844][    C0]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:201 (discriminator 1) kernel/locking/spinlock.c:213 (discriminator 1))
[   32.628845][    C0]  ? alloc_fd (./include/linux/spinlock.h:401 fs/file.c:610)
[   32.628848][    C0]  do_sys_openat2 (fs/open.c:1417 (discriminator 5))
[   32.628851][    C0]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   32.628854][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.628856][    C0]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   32.628857][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   32.628859][    C0]  ? __ia32_sys_open (fs/open.c:1427)
[   32.628861][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.628862][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.628864][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   32.628865][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   32.628867][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.628869][    C0] RIP: 0033:0x7f15caa986e5
[   32.628872][    C0] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   32.628873][    C0] RSP: 002b:00007ffeef211060 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   32.628875][    C0] RAX: ffffffffffffffda RBX: 00007ffeef2112f0 RCX: 00007f15caa986e5
[   32.628876][    C0] RDX: 0000000000080000 RSI: 00007ffeef2110e0 RDI: 00000000ffffff9c
[   32.628876][    C0] RBP: 00007ffeef211060 R08: 00007ffeef2112d7 R09: 0000000000000000
[   32.628877][    C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeef2110e0
[   32.628878][    C0] R13: 00007ffeef2110e0 R14: 00007f15caa6a000 R15: 0000000000000000
| [   32.696913][    C0]
| [   32.696988][    C0]
| [   32.696988][    C0] stack backtrace:
| [   32.697221][    C0] Tainted: [W]=WARN
[   32.697222][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.697223][    C0] Call Trace:
[   32.697225][    C0]  <IRQ>
[   32.697225][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   32.697229][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   32.697232][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   32.697235][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   32.697238][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   32.697240][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   32.697242][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   32.697244][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.697246][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.697248][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.697250][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.697252][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   32.697253][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.697255][    C0]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   32.697257][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.697258][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   32.697260][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   32.697261][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   32.697264][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.697266][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.697268][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.697270][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   32.697272][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   32.697274][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   32.697275][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.697278][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   32.697280][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   32.697282][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   32.697283][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.697286][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.697287][    C0]  handle_softirqs (kernel/softirq.c:645)
[   32.697290][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.697292][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   32.697294][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   32.697296][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   32.697298][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   32.697299][    C0]  </IRQ>
[   32.697300][    C0]  <TASK>
[   32.697301][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   32.697302][    C0] RIP: 0010:__rcu_read_lock (kernel/rcu/tree_plugin.h:413)
[   32.697304][    C0] Code: ff ff e8 8f ea 7c 00 e9 8b fc ff ff 48 89 de 48 c7 c7 80 2a 7c 8a e8 8b f4 fe 00 e9 54 fc ff ff 66 0f 1f 44 00 00 f3 0f 1e fa <0f> 1f 44 00 00 65 48 8b 05 bf 97 58 04 48 ba 00 00 00 00 00 fc ff
All code
========
   0:	ff                   	(bad)
   1:	ff                   	ljmp   (bad)
   2:	e8 8f ea 7c 00       	call   0x7cea96
   7:	e9 8b fc ff ff       	jmp    0xfffffffffffffc97
   c:	48 89 de             	mov    %rbx,%rsi
   f:	48 c7 c7 80 2a 7c 8a 	mov    $0xffffffff8a7c2a80,%rdi
  16:	e8 8b f4 fe 00       	call   0xfef4a6
  1b:	e9 54 fc ff ff       	jmp    0xfffffffffffffc74
  20:	66 0f 1f 44 00 00    	nopw   0x0(%rax,%rax,1)
  26:	f3 0f 1e fa          	endbr64
  2a:*	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)		<-- trapping instruction
  2f:	65 48 8b 05 bf 97 58 	mov    %gs:0x45897bf(%rip),%rax        # 0x45897f6
  36:	04 
  37:	48                   	rex.W
  38:	ba 00 00 00 00       	mov    $0x0,%edx
  3d:	00 fc                	add    %bh,%ah
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   5:	65 48 8b 05 bf 97 58 	mov    %gs:0x45897bf(%rip),%rax        # 0x45897cc
   c:	04 
   d:	48                   	rex.W
   e:	ba 00 00 00 00       	mov    $0x0,%edx
  13:	00 fc                	add    %bh,%ah
  15:	ff                   	.byte 0xff
[   32.697306][    C0] RSP: 0018:ffa0000001fa79d0 EFLAGS: 00000213
[   32.697308][    C0] RAX: 0000000000002f80 RBX: ffa0000001fa7c20 RCX: ff1100000178b738
[   32.697309][    C0] RDX: ff11000035100000 RSI: ffa0000001fa7c30 RDI: ff1100000178b738
[   32.697310][    C0] RBP: 0000000017c07e8f R08: fefefefefefefeff R09: 0000000000000000
[   32.697311][    C0] R10: 0000000000727375 R11: ff1100000cd3c000 R12: ff11000035117c00
[   32.697312][    C0] R13: ff1100000178b738 R14: ffa0000001fa7c30 R15: ffffffff8aa3df80
[   32.697314][    C0]  __d_lookup (./include/linux/rcupdate.h:847 fs/dcache.c:2615)
[   32.697317][    C0]  lookup_fast (fs/namei.c:1878)
[   32.697319][    C0]  ? inode_permission (fs/namei.c:583 fs/namei.c:653)
[   32.697321][    C0]  link_path_walk (fs/namei.c:2278 fs/namei.c:2656)
[   32.697323][    C0]  ? path_init (fs/namei.c:2720)
[   32.697325][    C0]  ? __raw_spin_lock_init (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/spinlock_debug.c:25)
[   32.697326][    C0]  ? vfs_rename (./include/linux/list.h:457 (discriminator 5))
[   32.697328][    C0]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   32.697331][    C0]  ? init_file.isra.0 (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 ./include/linux/file_ref.h:61 fs/file_table.c:229)
[   32.697333][    C0]  path_openat (fs/namei.c:4996 (discriminator 1))
[   32.697335][    C0]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.697337][    C0]  ? kernel_tmpfile_open (fs/namei.c:4942)
[   32.697340][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   32.697342][    C0]  do_file_open (fs/namei.c:5029)
[   32.697344][    C0]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[   32.697346][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.697349][    C0]  ? page_get_link_raw (fs/namei.c:6482)
[   32.697352][    C0]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:201 (discriminator 1) kernel/locking/spinlock.c:213 (discriminator 1))
[   32.697353][    C0]  ? alloc_fd (./include/linux/spinlock.h:401 fs/file.c:610)
[   32.697356][    C0]  do_sys_openat2 (fs/open.c:1417 (discriminator 5))
[   32.697358][    C0]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   32.697361][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.697363][    C0]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   32.697364][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536)
[   32.697366][    C0]  ? __ia32_sys_open (fs/open.c:1427)
[   32.697368][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.697369][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   32.697371][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   32.697372][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   32.697374][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.697375][    C0] RIP: 0033:0x7f15caa986e5
[   32.697377][    C0] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   32.697378][    C0] RSP: 002b:00007ffeef211060 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   32.697380][    C0] RAX: ffffffffffffffda RBX: 00007ffeef2112f0 RCX: 00007f15caa986e5
[   32.697381][    C0] RDX: 0000000000080000 RSI: 00007ffeef2110e0 RDI: 00000000ffffff9c
[   32.697382][    C0] RBP: 00007ffeef211060 R08: 00007ffeef2112d7 R09: 0000000000000000
[   32.697382][    C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffeef2110e0
[   32.697383][    C0] R13: 00007ffeef2110e0 R14: 00007f15caa6a000 R15: 0000000000000000
| [   65.397538][   T46] softirqs last disabled at (89278): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   65.397540][   T46] Preemption disabled at:
| [   65.397541][   T46] 0x0
| [   65.397551][   T46] Tainted: [W]=WARN
[   65.397551][   T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.397554][   T46] Workqueue: events_unbound linkwatch_event
[   65.397561][   T46] Call Trace:
[   65.397562][   T46]  <TASK>
[   65.397564][   T46]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.397569][   T46]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.397572][   T46]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.397576][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397579][   T46]  __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))
[   65.397583][   T46]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   65.397586][   T46]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.397590][   T46]  ? 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)
[   65.397591][   T46]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.397594][   T46]  put_chars (drivers/char/virtio_console.c:1176)
[   65.397597][   T46]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   65.397599][   T46]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.397601][   T46]  ? desc_read (kernel/printk/printk_ringbuffer.c:500)
[   65.397603][   T46]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   65.397605][   T46]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.397610][   T46]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.397612][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397613][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.397617][   T46]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.397619][   T46]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.397620][   T46]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   65.397622][   T46]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   65.397625][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397626][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397627][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397628][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.397630][   T46]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   65.397632][   T46]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.397634][   T46]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.397636][   T46]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.397637][   T46]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.397639][   T46]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.397640][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397642][   T46]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   65.397643][   T46]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   65.397645][   T46]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   65.397647][   T46]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.397649][   T46]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.397651][   T46]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.397653][   T46]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.397654][   T46]  ? do_raw_write_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qrwlock.h:98 kernel/locking/spinlock_debug.c:211)
[   65.397656][   T46]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   65.397657][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397659][   T46]  _printk (kernel/printk/printk.c:2504)
[   65.397662][   T46]  ? snapshot_read.cold (user.c:?)
[   65.397663][   T46]  ? fib6_info_destroy_rcu (net/ipv6/ip6_fib.c:172 (discriminator 1))
[   65.397666][   T46]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.397668][   T46]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   65.397671][   T46]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   65.397673][   T46]  br_port_carrier_check (net/bridge/br_if.c:95)
[   65.397677][   T46]  br_device_event (net/bridge/br.c:101)
[   65.397679][   T46]  ? packet_sendmsg_spkt (af_packet.c:?)
[   65.397681][   T46]  ? addrconf_notify (net/ipv6/addrconf.c:3749)
[   65.397683][   T46]  notifier_call_chain (kernel/notifier.c:85)
[   65.397687][   T46]  netif_state_change (net/core/dev.c:1625)
[   65.397690][   T46]  ? dev_deactivate (net/sched/sch_generic.c:1429)
[   65.397693][   T46]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   65.397695][   T46]  ? rfc2863_policy (net/core/link_watch.c:52 net/core/link_watch.c:76)
[   65.397697][   T46]  ? linkwatch_do_dev (net/core/link_watch.c:184 net/core/link_watch.c:166)
[   65.397699][   T46]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   65.397701][   T46]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.397704][   T46]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   65.397707][   T46]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   65.397709][   T46]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   65.397712][   T46]  process_one_work (kernel/workqueue.c:3387)
[   65.397715][   T46]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   65.397717][   T46]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.397719][   T46]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   65.397721][   T46]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   65.397723][   T46]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   65.397725][   T46]  kthread (kernel/kthread.c:436)
[   65.397727][   T46]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   65.397730][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   65.397732][   T46]  ret_from_fork (arch/x86/kernel/process.c:158)
[   65.397736][   T46]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   65.397738][   T46]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   65.397741][   T46]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   65.397743][   T46]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   66.649748][  T387] softirqs last disabled at (0): 0x0
| [   66.649751][  T387] Preemption disabled at:
| [   66.649752][  T387] 0x0
| [   66.649764][  T387] Tainted: [W]=WARN
[   66.649765][  T387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.649767][  T387] Call Trace:
[   66.649770][  T387]  <TASK>
[   66.649772][  T387]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.649778][  T387]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.649783][  T387]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.649787][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649792][  T387]  __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))
[   66.649797][  T387]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.649800][  T387]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.649806][  T387]  ? 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)
[   66.649808][  T387]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.649811][  T387]  put_chars (drivers/char/virtio_console.c:1176)
[   66.649814][  T387]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1929)
[   66.649819][  T387]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.649823][  T387]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.649829][  T387]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.649832][  T387]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   66.649834][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.649839][  T387]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.649843][  T387]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.649845][  T387]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   66.649848][  T387]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   66.649852][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649854][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649856][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649858][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.649861][  T387]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   66.649864][  T387]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.649867][  T387]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.649873][  T387]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.649875][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.649878][  T387]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.649880][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649882][  T387]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.649885][  T387]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   66.649887][  T387]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   66.649890][  T387]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.649894][  T387]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.649896][  T387]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.649899][  T387]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.649902][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649904][  T387]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   66.649908][  T387]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   66.649911][  T387]  _printk (kernel/printk/printk.c:2504)
[   66.649915][  T387]  ? snapshot_read.cold (user.c:?)
[   66.649919][  T387]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   66.649924][  T387]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   66.649928][  T387]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   66.649932][  T387]  br_device_event (net/bridge/br.c:111)
[   66.649936][  T387]  ? packet_sendmsg_spkt (af_packet.c:?)
[   66.649939][  T387]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   66.649943][  T387]  notifier_call_chain (kernel/notifier.c:85)
[   66.649948][  T387]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   66.649953][  T387]  ? netif_change_name (net/core/dev.c:1517)
[   66.649956][  T387]  ? __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   66.649959][  T387]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   66.649962][  T387]  ? __kernel_text_address (kernel/extable.c:79)
[   66.649965][  T387]  ? write_profile (profile.c:?)
[   66.649969][  T387]  netif_change_flags (net/core/dev.c:9882)
[   66.649973][  T387]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   66.649977][  T387]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.649980][  T387]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.649983][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.649985][  T387]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   66.649990][  T387]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.649992][  T387]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.649994][  T387]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.649996][  T387]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.649998][  T387]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   66.650001][  T387]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   66.650003][  T387]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.650006][  T387]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.650009][  T387]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.650012][  T387]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.650014][  T387]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   66.650017][  T387]  ? ___sys_sendmsg (net/socket.c:2767)
[   66.650019][  T387]  ? __sys_sendmsg (net/socket.c:2799)
[   66.650022][  T387]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.650024][  T387]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.650029][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650032][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.650037][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650039][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650042][  T387]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.650045][  T387]  ? __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)
[   66.650047][  T387]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.650050][  T387]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.650053][  T387]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.650057][  T387]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.650061][  T387]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.650065][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650068][  T387]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.650070][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.650073][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650076][  T387]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   66.650080][  T387]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   66.650082][  T387]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   66.650085][  T387]  ? __kernel_text_address (kernel/extable.c:79)
[   66.650087][  T387]  ? write_profile (profile.c:?)
[   66.650090][  T387]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   66.650099][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650101][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650104][  T387]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   66.650108][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.650111][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650113][  T387]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.650116][  T387]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.650120][  T387]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.650122][  T387]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   66.650125][  T387]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   66.650129][  T387]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.650132][  T387]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.650135][  T387]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.650138][  T387]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.650140][  T387]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   66.650144][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650146][  T387]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.650150][  T387]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.650153][  T387]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.650156][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650158][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650160][  T387]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.650164][  T387]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.650167][  T387]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.650170][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650173][  T387]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   66.650176][  T387]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   66.650179][  T387]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.650181][  T387]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   66.650183][  T387]  ? move_addr_to_kernel (net/socket.c:258)
[   66.650185][  T387]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   66.650190][  T387]  ___sys_sendmsg (net/socket.c:2767)
[   66.650193][  T387]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.650201][  T387]  __sys_sendmsg (net/socket.c:2799)
[   66.650204][  T387]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.650208][  T387]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.650211][  T387]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.650213][  T387]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.650216][  T387]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.650219][  T387] RIP: 0033:0x7f77bb6bc54e
[   66.650221][  T387] 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
[   66.650224][  T387] RSP: 002b:00007ffde69cf630 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.650229][  T387] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f77bb6bc54e
[   66.650231][  T387] RDX: 0000000000000000 RSI: 00007ffde69cf6e0 RDI: 0000000000000005
[   66.650233][  T387] RBP: 00007ffde69cf640 R08: 0000000000000000 R09: 0000000000000000
[   66.650234][  T387] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912b3b
[   66.650236][  T387] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde69cfdb0
| [   67.848478][   T38] softirqs last disabled at (124099): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   67.848481][   T38] Preemption disabled at:
| [   67.848485][   T38] 0x0
| [   67.848498][   T38] Tainted: [W]=WARN
[   67.848500][   T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.848502][   T38] Workqueue: events_unbound linkwatch_event
[   67.848510][   T38] Call Trace:
[   67.848512][   T38]  <TASK>
[   67.848514][   T38]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.848520][   T38]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.848524][   T38]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   67.848529][   T38]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.848532][   T38]  ? record_print_text (kernel/printk/printk.c:1467)
[   67.848536][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848541][   T38]  __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))
[   67.848545][   T38]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   67.848547][   T38]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.848553][   T38]  ? 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)
[   67.848555][   T38]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.848559][   T38]  put_chars (drivers/char/virtio_console.c:1176)
[   67.848562][   T38]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.848565][   T38]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   67.848569][   T38]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.848575][   T38]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.848578][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848580][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848582][   T38]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.848586][   T38]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.848590][   T38]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.848592][   T38]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   67.848595][   T38]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   67.848597][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848599][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848601][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848604][   T38]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.848607][   T38]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   67.848609][   T38]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.848612][   T38]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.848616][   T38]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.848618][   T38]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.848621][   T38]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.848623][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848625][   T38]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   67.848628][   T38]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   67.848631][   T38]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   67.848634][   T38]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.848636][   T38]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.848639][   T38]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.848642][   T38]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.848645][   T38]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   67.848647][   T38]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.848650][   T38]  _printk (kernel/printk/printk.c:2504)
[   67.848654][   T38]  ? snapshot_read.cold (user.c:?)
[   67.848657][   T38]  ? netif_get_link_ksettings (net/ethtool/ioctl.c:450)
[   67.848661][   T38]  ? port_cost (net/bridge/br_if.c:40)
[   67.848665][   T38]  ? br_multicast_flood (??:?)
[   67.848669][   T38]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   67.848673][   T38]  br_init_port (net/bridge/br_stp_if.c:39)
[   67.848676][   T38]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   67.848679][   T38]  br_port_carrier_check (net/bridge/br_if.c:90)
[   67.848682][   T38]  br_device_event (net/bridge/br.c:101)
[   67.848685][   T38]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   67.848689][   T38]  ? packet_sendmsg_spkt (af_packet.c:?)
[   67.848693][   T38]  ? addrconf_notify (net/ipv6/addrconf.c:3764)
[   67.848696][   T38]  notifier_call_chain (kernel/notifier.c:85)
[   67.848701][   T38]  netif_state_change (net/core/dev.c:1625)
[   67.848705][   T38]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   67.848709][   T38]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   67.848712][   T38]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   67.848715][   T38]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.848718][   T38]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   67.848723][   T38]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   67.848727][   T38]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   67.848730][   T38]  process_one_work (kernel/workqueue.c:3387)
[   67.848735][   T38]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   67.848738][   T38]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.848741][   T38]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   67.848745][   T38]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   67.848749][   T38]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   67.848751][   T38]  kthread (kernel/kthread.c:436)
[   67.848754][   T38]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   67.848758][   T38]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   67.848761][   T38]  ret_from_fork (arch/x86/kernel/process.c:158)
[   67.848766][   T38]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   67.848769][   T38]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   67.848773][   T38]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   67.848776][   T38]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   71.126338][   T93] softirqs last disabled at (20273): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   71.126341][   T93] Preemption disabled at:
| [   71.126342][   T93] 0x0
| [   71.126351][   T93] Tainted: [W]=WARN
[   71.126352][   T93] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.126354][   T93] Workqueue: events_unbound linkwatch_event
[   71.126361][   T93] Call Trace:
[   71.126363][   T93]  <TASK>
[   71.126364][   T93]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   71.126369][   T93]  __might_resched.cold (kernel/sched/core.c:9234)
[   71.126373][   T93]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   71.126376][   T93]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   71.126379][   T93]  ? record_print_text (kernel/printk/printk.c:1467)
[   71.126383][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126386][   T93]  __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))
[   71.126389][   T93]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   71.126391][   T93]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.126395][   T93]  ? 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)
[   71.126396][   T93]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.126399][   T93]  put_chars (drivers/char/virtio_console.c:1176)
[   71.126402][   T93]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   71.126404][   T93]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[   71.126407][   T93]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   71.126411][   T93]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   71.126413][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126414][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126415][   T93]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.126418][   T93]  console_emit_next_record (kernel/printk/printk.c:3183)
[   71.126421][   T93]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   71.126422][   T93]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[   71.126424][   T93]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[   71.126425][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126426][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126427][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126429][   T93]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.126431][   T93]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   71.126432][   T93]  console_flush_one_record (kernel/printk/printk.c:3268)
[   71.126434][   T93]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   71.126436][   T93]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   71.126438][   T93]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.126439][   T93]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   71.126441][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126442][   T93]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   71.126444][   T93]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   71.126445][   T93]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   71.126447][   T93]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   71.126449][   T93]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   71.126451][   T93]  vprintk_emit (kernel/printk/printk.c:2479)
[   71.126453][   T93]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   71.126455][   T93]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   71.126456][   T93]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.126458][   T93]  _printk (kernel/printk/printk.c:2504)
[   71.126461][   T93]  ? snapshot_read.cold (user.c:?)
[   71.126463][   T93]  ? netif_get_link_ksettings (net/ethtool/ioctl.c:450)
[   71.126466][   T93]  ? port_cost (net/bridge/br_if.c:40)
[   71.126469][   T93]  ? br_multicast_flood (??:?)
[   71.126472][   T93]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   71.126474][   T93]  br_init_port (net/bridge/br_stp_if.c:39)
[   71.126476][   T93]  br_stp_enable_port (net/bridge/br_stp_if.c:93)
[   71.126478][   T93]  br_port_carrier_check (net/bridge/br_if.c:90)
[   71.126481][   T93]  br_device_event (net/bridge/br.c:101)
[   71.126485][   T93]  ? fib6_ifdown (net/ipv6/route.c:4976)
[   71.126489][   T93]  ? packet_sendmsg_spkt (af_packet.c:?)
[   71.126491][   T93]  ? addrconf_notify (net/ipv6/addrconf.c:3764)
[   71.126493][   T93]  notifier_call_chain (kernel/notifier.c:85)
[   71.126497][   T93]  netif_state_change (net/core/dev.c:1625)
[   71.126500][   T93]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   71.126502][   T93]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   71.126504][   T93]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   71.126506][   T93]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   71.126508][   T93]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   71.126512][   T93]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   71.126514][   T93]  ? __linkwatch_run_queue (net/core/link_watch.c:213)
[   71.126516][   T93]  process_one_work (kernel/workqueue.c:3387)
[   71.126520][   T93]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   71.126521][   T93]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.126524][   T93]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   71.126525][   T93]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   71.126527][   T93]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   71.126528][   T93]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   71.126531][   T93]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   71.126532][   T93]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   71.126533][   T93]  kthread (kernel/kthread.c:436)
[   71.126535][   T93]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   71.126538][   T93]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   71.126540][   T93]  ret_from_fork (arch/x86/kernel/process.c:158)
[   71.126544][   T93]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   71.126546][   T93]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   71.126549][   T93]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   71.126551][   T93]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [  115.740152][   T12] softirqs last disabled at (57742): bond_3ad_state_machine_handler (./include/linux/spinlock.h:353 drivers/net/bonding/bond_3ad.c:2564)
| [  115.740154][   T12] Preemption disabled at:
| [  115.740155][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [  115.740166][   T12] Tainted: [W]=WARN
[  115.740167][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  115.740169][   T12] Workqueue: netns cleanup_net
[  115.740175][   T12] Call Trace:
[  115.740176][   T12]  <TASK>
[  115.740178][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  115.740183][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  115.740184][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  115.740188][   T12]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  115.740191][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  115.740194][   T12]  ? record_print_text (kernel/printk/printk.c:1467)
[  115.740196][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740200][   T12]  __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))
[  115.740203][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  115.740205][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  115.740209][   T12]  ? 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)
[  115.740210][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  115.740213][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  115.740216][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  115.740218][   T12]  ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552)
[  115.740220][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  115.740225][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  115.740227][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740228][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740229][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  115.740232][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  115.740234][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  115.740236][   T12]  ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996)
[  115.740238][   T12]  ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1))
[  115.740239][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740240][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740241][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740243][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  115.740245][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  115.740246][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  115.740248][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  115.740250][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  115.740251][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  115.740253][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  115.740255][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740256][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  115.740257][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  115.740259][   T12]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[  115.740261][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  115.740263][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  115.740265][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  115.740267][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  115.740268][   T12]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[  115.740270][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  115.740271][   T12]  _printk (kernel/printk/printk.c:2504)
[  115.740274][   T12]  ? snapshot_read.cold (user.c:?)
[  115.740276][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740277][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  115.740280][   T12]  ? 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)
[  115.740281][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  115.740283][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[  115.740285][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[  115.740287][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[  115.740289][   T12]  ? netdev_notice (net/core/dev.c:13194)
[  115.740291][   T12]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[  115.740293][   T12]  ? trace_irq_enable.constprop.0 (./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/preemptirq.h:40)
[  115.740295][   T12]  __bond_release_one.cold (drivers/net/bonding/bond_main.c:2484 (discriminator 4))
[  115.740299][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  115.740301][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740302][   T12]  ? bond_enslave (drivers/net/bonding/bond_main.c:2331)
[  115.740304][   T12]  ? ipvlan_port_create (./include/linux/netdevice.h:4516 (discriminator 29) ./include/linux/netdevice.h:4556 (discriminator 29) ./include/linux/netdevice.h:4552 (discriminator 29) drivers/net/ipvlan/ipvlan_main.c:101 (discriminator 29))
[  115.740306][   T12]  ? ipvlan_port_get (./include/linux/rcupdate.h:882 drivers/net/ipvlan/ipvlan_main.c:146)
[  115.740307][   T12]  ? ipvlan_port_create (./include/linux/list.h:54 (discriminator 2) drivers/net/ipvlan/ipvlan_main.c:93 (discriminator 2))
[  115.740309][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740311][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  115.740313][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[  115.740316][   T12]  bond_uninit (drivers/net/bonding/bond_main.c:6071)
[  115.740317][   T12]  ? ip6_route_dev_notify (./include/net/net_namespace.h:422 (discriminator 1) ./include/linux/netdevice.h:2807 (discriminator 1) net/ipv6/route.c:6521 (discriminator 1))
[  115.740320][   T12]  ? bond_siocdevprivate (drivers/net/bonding/bond_main.c:4682)
[  115.740323][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12537)
[  115.740326][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[  115.740327][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  115.740329][   T12]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  115.740332][   T12]  ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:154 (discriminator 1) net/ipv4/nexthop.c:4172 (discriminator 1))
[  115.740335][   T12]  ops_undo_list (net/core/net_namespace.c:188 net/core/net_namespace.c:249)
[  115.740337][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[  115.740339][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  115.740342][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  115.740344][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  115.740350][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  115.740352][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  115.740354][   T12]  process_one_work (kernel/workqueue.c:3387)
[  115.740357][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  115.740360][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  115.740362][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  115.740364][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  115.740365][   T12]  kthread (kernel/kthread.c:436)
[  115.740368][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  115.740369][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  115.740372][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  115.740375][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  115.740377][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  115.740380][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:handle_softirqs:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
inet6_fill_ifla6_attrs:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
bond_3ad_state_machine_handler:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars