======================================
| [   11.950334][  T289] softirqs last disabled at (47538): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.950337][  T289] Preemption disabled at:
| [   11.950337][  T289] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.950346][  T289] Tainted: [W]=WARN
[   11.950347][  T289] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.950349][  T289] Call Trace:
[   11.950350][  T289]  <TASK>
[   11.950352][  T289]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.950358][  T289]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.950360][  T289]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.950364][  T289]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.950368][  T289]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.950373][  T289]  __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))
[   11.950375][  T289]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.950381][  T289]  ? 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)
[   11.950384][  T289]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.950388][  T289]  put_chars (drivers/char/virtio_console.c:1176)
[   11.950390][  T289]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.950393][  T289]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.950398][  T289]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.950406][  T289]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.950408][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950411][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.950415][  T289]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.950419][  T289]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.950421][  T289]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.950424][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950426][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.950430][  T289]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.950434][  T289]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.950436][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.950442][  T289]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.950444][  T289]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.950446][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950448][  T289]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.950452][  T289]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.950454][  T289]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.950456][  T289]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.950459][  T289]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.950461][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.950463][  T289]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.950467][  T289]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.950470][  T289]  _printk (kernel/printk/printk.c:2504)
[   11.950474][  T289]  ? snapshot_read.cold (user.c:?)
[   11.950477][  T289]  ? br_multicast_flood (??:?)
[   11.950480][  T289]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.950482][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.950483][  T289]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.950487][  T289]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.950491][  T289]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.950494][  T289]  new_nbp (net/bridge/br_if.c:449)
[   11.950497][  T289]  br_add_if (net/bridge/br_if.c:592)
[   11.950500][  T289]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.950503][  T289]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.950509][  T289]  do_set_master (net/core/rtnetlink.c:3071)
[   11.950512][  T289]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.950516][  T289]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.950519][  T289]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.950520][  T289]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.950523][  T289]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.950526][  T289]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.950529][  T289]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.950530][  T289]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.950533][  T289]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.950535][  T289]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.950536][  T289]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.950538][  T289]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.950540][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.950542][  T289]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.950545][  T289]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.950549][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.950551][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.950553][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950555][  T289]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.950557][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950558][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950560][  T289]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.950562][  T289]  ? __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)
[   11.950564][  T289]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.950565][  T289]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.950569][  T289]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.950570][  T289]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.950575][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950577][  T289]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.950582][  T289]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.950588][  T289]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.950590][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.950594][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.950596][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.950599][  T289]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.950600][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.950604][  T289]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.950606][  T289]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.950609][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.950611][  T289]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.950615][  T289]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.950617][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.950621][  T289]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.950624][  T289]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.950627][  T289]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.950633][  T289]  ? 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))
[   11.950635][  T289]  ? 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))
[   11.950640][  T289]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.950644][  T289]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.950646][  T289]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.950651][  T289]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.950655][  T289]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.950658][  T289]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.950660][  T289]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.950665][  T289]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.950668][  T289]  ____sys_sendmsg (net/socket.c:2713)
[   11.950670][  T289]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.950673][  T289]  ? sock_write_iter (net/socket.c:1269)
[   11.950674][  T289]  ? move_addr_to_kernel (net/socket.c:258)
[   11.950682][  T289]  ___sys_sendmsg (net/socket.c:2767)
[   11.950685][  T289]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.950701][  T289]  __sys_sendmsg (net/socket.c:2799)
[   11.950704][  T289]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.950710][  T289]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.950713][  T289]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.950716][  T289]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.950719][  T289]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.950721][  T289] RIP: 0033:0x7fdc6753654e
[   11.950725][  T289] 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
[   11.950727][  T289] RSP: 002b:00007fff74642ae0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.950729][  T289] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdc6753654e
[   11.950731][  T289] RDX: 0000000000000000 RSI: 00007fff74642b90 RDI: 0000000000000005
[   11.950732][  T289] RBP: 00007fff74642af0 R08: 0000000000000000 R09: 0000000000000000
[   11.950732][  T289] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913909
[   11.950733][  T289] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff74643250
| [   13.100040][  T309] softirqs last disabled at (5224): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.100042][  T309] Preemption disabled at:
| [   13.100043][  T309] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.100052][  T309] Tainted: [W]=WARN
[   13.100053][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.100054][  T309] Call Trace:
[   13.100056][  T309]  <TASK>
[   13.100058][  T309]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.100064][  T309]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.100065][  T309]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.100070][  T309]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.100074][  T309]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.100079][  T309]  __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))
[   13.100080][  T309]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.100087][  T309]  ? 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)
[   13.100090][  T309]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.100094][  T309]  put_chars (drivers/char/virtio_console.c:1176)
[   13.100096][  T309]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.100099][  T309]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.100103][  T309]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.100107][  T309]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.100111][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.100113][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.100118][  T309]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.100121][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.100124][  T309]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.100128][  T309]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.100132][  T309]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.100134][  T309]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.100137][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.100139][  T309]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.100143][  T309]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.100147][  T309]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.100149][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.100155][  T309]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.100158][  T309]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.100159][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.100161][  T309]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   13.100165][  T309]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.100167][  T309]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.100170][  T309]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.100173][  T309]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.100175][  T309]  ? netlink_broadcast_filtered (net/netlink/af_netlink.c:1541)
[   13.100179][  T309]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.100181][  T309]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.100184][  T309]  _printk (kernel/printk/printk.c:2504)
[   13.100188][  T309]  ? snapshot_read.cold (user.c:?)
[   13.100190][  T309]  ? __sys_setsockopt (net/socket.c:2422)
[   13.100195][  T309]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   13.100199][  T309]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   13.100202][  T309]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.100205][  T309]  ? netdev_notice (net/core/dev.c:13194)
[   13.100207][  T309]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.100213][  T309]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.100215][  T309]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   13.100218][  T309]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   13.100222][  T309]  dev_set_allmulti (net/core/dev_api.c:315)
[   13.100225][  T309]  vif_add (net/ipv4/ipmr.c:900)
[   13.100228][  T309]  ? __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)
[   13.100230][  T309]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.100234][  T309]  ? ip_mr_output_finish.isra.0 (net/ipv4/ipmr.c:2304)
[   13.100237][  T309]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.100240][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.100244][  T309]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.100247][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.100251][  T309]  ip_mroute_setsockopt (net/ipv4/ipmr.c:1491 (discriminator 1))
[   13.100255][  T309]  ? ipmr_rtm_route (net/ipv4/ipmr.c:2967)
[   13.100260][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.100262][  T309]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.100266][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.100268][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.100271][  T309]  do_ip_setsockopt (net/ipv4/ip_sockglue.c:952)
[   13.100275][  T309]  ? ip_sock_set_tos (net/ipv4/ip_sockglue.c:609)
[   13.100278][  T309]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.100281][  T309]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.100283][  T309]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.100286][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.100289][  T309]  ? 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)
[   13.100290][  T309]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   13.100292][  T309]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.100297][  T309]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   13.100299][  T309]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.100303][  T309]  ip_setsockopt (net/ipv4/ip_sockglue.c:1421)
[   13.100306][  T309]  raw_setsockopt (net/ipv4/raw.c:851)
[   13.100309][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.100312][  T309]  ? raw_bind (net/ipv4/raw.c:733)
[   13.100316][  T309]  do_sock_setsockopt (net/socket.c:2397)
[   13.100319][  T309]  ? put_user_ifreq (./arch/x86/include/asm/compat.h:94 (discriminator 1))
[   13.100321][  T309]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.100324][  T309]  ? fd_install (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:971 (discriminator 2) fs/file.c:698 (discriminator 2))
[   13.100329][  T309]  ? fd_install (./include/linux/rcupdate.h:974 (discriminator 1) fs/file.c:698 (discriminator 1))
[   13.100333][  T309]  __sys_setsockopt (net/socket.c:2422)
[   13.100338][  T309]  __x64_sys_setsockopt (net/socket.c:2428 net/socket.c:2425 net/socket.c:2425)
[   13.100340][  T309]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.100343][  T309]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.100345][  T309]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   13.100347][  T309]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.100349][  T309]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.100351][  T309]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.100353][  T309] RIP: 0033:0x7f4eb1bcc2de
[   13.100357][  T309] Code: 55 48 63 c9 48 63 ff 45 89 c9 48 89 e5 48 83 ec 08 6a 2c e8 94 72 f7 ff c9 c3 66 90 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 e1
All code
========
   0:	55                   	push   %rbp
   1:	48 63 c9             	movslq %ecx,%rcx
   4:	48 63 ff             	movslq %edi,%rdi
   7:	45 89 c9             	mov    %r9d,%r9d
   a:	48 89 e5             	mov    %rsp,%rbp
   d:	48 83 ec 08          	sub    $0x8,%rsp
  11:	6a 2c                	push   $0x2c
  13:	e8 94 72 f7 ff       	call   0xfffffffffff772ac
  18:	c9                   	leave
  19:	c3                   	ret
  1a:	66 90                	xchg   %ax,%ax
  1c:	f3 0f 1e fa          	endbr64
  20:	49 89 ca             	mov    %rcx,%r10
  23:	b8 36 00 00 00       	mov    $0x36,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 0a                	ja     0x3c
  32:	c3                   	ret
  33:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3a:	00 00 
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	15                   	.byte 0x15
  3f:	e1                   	.byte 0xe1

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 0a                	ja     0x12
   8:	c3                   	ret
   9:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  10:	00 00 
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	15                   	.byte 0x15
  15:	e1                   	.byte 0xe1
[   13.100359][  T309] RSP: 002b:00007ffc959f84e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[   13.100362][  T309] RAX: ffffffffffffffda RBX: 000056365197b2c0 RCX: 00007f4eb1bcc2de
[   13.100363][  T309] RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000007
[   13.100364][  T309] RBP: 00007ffc959f85a0 R08: 0000000000000010 R09: 0000000000000001
[   13.100365][  T309] R10: 00007ffc959f8520 R11: 0000000000000246 R12: 00005636802a50c4
[   13.100366][  T309] R13: 00007ffc959f85f0 R14: 00005636802a50b0 R15: 0000000000000000
| [   27.090970][    C1] softirqs last disabled at (6728323): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   27.090974][    C1] Preemption disabled at:
| [   27.090975][    C1] __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2))
| [   27.090984][    C1] Tainted: [W]=WARN
[   27.090985][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.090987][    C1] Call Trace:
[   27.090989][    C1]  <IRQ>
[   27.090991][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.090996][    C1]  ? __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2))
[   27.090998][    C1]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.091001][    C1]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   27.091005][    C1]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.091008][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091010][    C1]  __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))
[   27.091013][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.091016][    C1]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.091027][    C1]  ? 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)
[   27.091028][    C1]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.091031][    C1]  put_chars (drivers/char/virtio_console.c:1176)
[   27.091033][    C1]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.091035][    C1]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.091037][    C1]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.091042][    C1]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.091044][    C1]  ? vsnprintf (lib/vsprintf.c:2900)
[   27.091046][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.091048][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091049][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091051][    C1]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.091053][    C1]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.091055][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091056][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091058][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.091060][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.091062][    C1]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.091064][    C1]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.091067][    C1]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.091069][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.091071][    C1]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.091072][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091073][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.091075][    C1]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   27.091077][    C1]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.091079][    C1]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.091080][    C1]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.091082][    C1]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.091083][    C1]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.091086][    C1]  _printk (kernel/printk/printk.c:2504)
[   27.091089][    C1]  ? snapshot_read.cold (user.c:?)
[   27.091091][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.091093][    C1]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.091094][    C1]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.091097][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.091100][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.091102][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.091104][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.091106][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.091108][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.091111][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091112][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.091114][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.091115][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.091117][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.091118][    C1]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.091120][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.091121][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   27.091125][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.091127][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.091129][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.091131][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091132][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.091134][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.091136][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.091138][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.091141][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.091143][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.091145][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.091147][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091148][    C1]  handle_softirqs (kernel/softirq.c:645)
[   27.091151][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.091152][    C1]  ? 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)
[   27.091154][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091155][    C1]  ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[   27.091157][    C1]  do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
[   27.091159][    C1]  </IRQ>
[   27.091159][    C1]  <TASK>
[   27.091160][    C1]  __local_bh_enable_ip (kernel/softirq.c:473)
[   27.091162][    C1]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[   27.091164][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.091166][    C1]  ? netdev_core_pick_tx (net/core/dev.c:4784)
[   27.091168][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:124 (discriminator 1) kernel/locking/lockdep.c:5884 (discriminator 1))
[   27.091170][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.091171][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.091173][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091174][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091175][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.091179][    C1]  ? neigh_hh_output (./include/net/neighbour.h:525)
[   27.091182][    C1]  ip_finish_output2 (./include/net/neighbour.h:558 net/ipv4/ip_output.c:236)
[   27.091184][    C1]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip.h:504 (discriminator 2))
[   27.091185][    C1]  ? ip_copy_metadata (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1475 ./include/linux/rcuref.h:87 ./include/net/dst.h:247 ./include/net/dst.h:261 ./include/net/dst.h:294 ./include/net/dst.h:299 net/ipv4/ip_output.c:558)
[   27.091187][    C1]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41))
[   27.091188][    C1]  ? ip_fast_csum (lib/checksum.c:99)
[   27.091192][    C1]  ? ip_fraglist_prepare (net/ipv4/ip_output.c:98 net/ipv4/ip_output.c:638)
[   27.091193][    C1]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   27.091195][    C1]  ip_do_fragment (net/ipv4/ip_output.c:862)
[   27.091197][    C1]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41))
[   27.091199][    C1]  ? ip4_dst_hoplimit (./include/net/dst.h:582 (discriminator 4) ./include/net/dst.h:587 (discriminator 4) ./include/net/route.h:395 (discriminator 4))
[   27.091201][    C1]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504)
[   27.091202][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.091204][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.091205][    C1]  ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437)
[   27.091207][    C1]  ? ip_finish_output (./include/linux/cgroup.h:915)
[   27.091208][    C1]  ? ip_make_skb (net/ipv4/ip_output.c:1584)
[   27.091210][    C1]  ? ip_frag_init (./include/linux/skbuff.h:3160)
[   27.091212][    C1]  ? ip_flush_pending_frames (net/ipv4/ip_output.c:1550)
[   27.091214][    C1]  ip_send_skb (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4))
[   27.091215][    C1]  udp_send_skb (net/ipv4/udp.c:1163 (discriminator 1))
[   27.091220][    C1]  udp_sendmsg (net/ipv4/udp.c:1445)
[   27.091222][    C1]  ? udp_cmsg_send (net/ipv4/udp.c:1218)
[   27.091223][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.091225][    C1]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   27.091227][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.091229][    C1]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   27.091232][    C1]  ? anon_pipe_trim_and_unlock (fs/pipe.c:192)
[   27.091236][    C1]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.091239][    C1]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208)
[   27.091241][    C1]  __sys_sendto (net/socket.c:2281)
[   27.091244][    C1]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   27.091248][    C1]  ? ksys_read (fs/read_write.c:716)
[   27.091250][    C1]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   27.091252][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.091255][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.091258][    C1]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   27.091260][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.091262][    C1]  ? irq_exit_rcu (kernel/softirq.c:786)
[   27.091263][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.091266][    C1] RIP: 0033:0x7fbc255ac54e
[   27.091269][    C1] 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
[   27.091271][    C1] RSP: 002b:00007ffd388b90e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   27.091275][    C1] RAX: ffffffffffffffda RBX: 00005587f93099e0 RCX: 00007fbc255ac54e
[   27.091276][    C1] RDX: 0000000000002000 RSI: 00005587f9390a70 RDI: 0000000000000005
[   27.091277][    C1] RBP: 00007ffd388b90f0 R08: 0000000000000000 R09: 0000000000000000
[   27.091278][    C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00005587f93099e0
[   27.091279][    C1] R13: 00005587f938cac0 R14: 00005587f9309350 R15: 00005587f93099e0
| [   27.156790][    C1]
| [   27.156862][    C1]
| [   27.156862][    C1] stack backtrace:
| [   27.157108][    C1] Tainted: [W]=WARN
[   27.157109][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.157111][    C1] Call Trace:
[   27.157112][    C1]  <IRQ>
[   27.157113][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.157118][    C1]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.157121][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.157124][    C1]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.157127][    C1]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.157128][    C1]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.157131][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.157132][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.157134][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157136][    C1]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.157138][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.157139][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.157141][    C1]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.157142][    C1]  br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88)
[   27.157144][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.157145][    C1]  call_timer_fn (kernel/time/timer.c:1748)
[   27.157147][    C1]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.157149][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.157151][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.157153][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157155][    C1]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.157156][    C1]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54)
[   27.157158][    C1]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.157160][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.157163][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.157166][    C1]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.157169][    C1]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.157170][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157172][    C1]  handle_softirqs (kernel/softirq.c:645)
[   27.157174][    C1]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.157175][    C1]  ? 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)
[   27.157177][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157178][    C1]  ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[   27.157180][    C1]  do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
[   27.157182][    C1]  </IRQ>
[   27.157182][    C1]  <TASK>
[   27.157183][    C1]  __local_bh_enable_ip (kernel/softirq.c:473)
[   27.157185][    C1]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2))
[   27.157187][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.157189][    C1]  ? netdev_core_pick_tx (net/core/dev.c:4784)
[   27.157191][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:124 (discriminator 1) kernel/locking/lockdep.c:5884 (discriminator 1))
[   27.157193][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.157194][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.157196][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157197][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157198][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.157202][    C1]  ? neigh_hh_output (./include/net/neighbour.h:525)
[   27.157204][    C1]  ip_finish_output2 (./include/net/neighbour.h:558 net/ipv4/ip_output.c:236)
[   27.157205][    C1]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/ip.h:504 (discriminator 2))
[   27.157206][    C1]  ? ip_copy_metadata (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1475 ./include/linux/rcuref.h:87 ./include/net/dst.h:247 ./include/net/dst.h:261 ./include/net/dst.h:294 ./include/net/dst.h:299 net/ipv4/ip_output.c:558)
[   27.157208][    C1]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41))
[   27.157209][    C1]  ? ip_fast_csum (lib/checksum.c:99)
[   27.157213][    C1]  ? ip_fraglist_prepare (net/ipv4/ip_output.c:98 net/ipv4/ip_output.c:638)
[   27.157215][    C1]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   27.157216][    C1]  ip_do_fragment (net/ipv4/ip_output.c:862)
[   27.157218][    C1]  ? ip_fragment.constprop.0 (net/ipv4/ip_output.c:587 (discriminator 41))
[   27.157220][    C1]  ? ip4_dst_hoplimit (./include/net/dst.h:582 (discriminator 4) ./include/net/dst.h:587 (discriminator 4) ./include/net/route.h:395 (discriminator 4))
[   27.157222][    C1]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:882 ./include/net/ip.h:504)
[   27.157223][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.157225][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.157227][    C1]  ip_output (./include/linux/netfilter.h:314 net/ipv4/ip_output.c:437)
[   27.157229][    C1]  ? ip_finish_output (./include/linux/cgroup.h:915)
[   27.157230][    C1]  ? ip_make_skb (net/ipv4/ip_output.c:1584)
[   27.157232][    C1]  ? ip_frag_init (./include/linux/skbuff.h:3160)
[   27.157233][    C1]  ? ip_flush_pending_frames (net/ipv4/ip_output.c:1550)
[   27.157235][    C1]  ip_send_skb (./include/net/dst.h:470 (discriminator 4) net/ipv4/ip_output.c:131 (discriminator 4) net/ipv4/ip_output.c:1510 (discriminator 4))
[   27.157237][    C1]  udp_send_skb (net/ipv4/udp.c:1163 (discriminator 1))
[   27.157240][    C1]  udp_sendmsg (net/ipv4/udp.c:1445)
[   27.157242][    C1]  ? udp_cmsg_send (net/ipv4/udp.c:1218)
[   27.157243][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.157244][    C1]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   27.157247][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.157249][    C1]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   27.157251][    C1]  ? anon_pipe_trim_and_unlock (fs/pipe.c:192)
[   27.157256][    C1]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.157257][    C1]  ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208)
[   27.157260][    C1]  __sys_sendto (net/socket.c:2281)
[   27.157262][    C1]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   27.157266][    C1]  ? ksys_read (fs/read_write.c:716)
[   27.157268][    C1]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   27.157270][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.157273][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.157275][    C1]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   27.157277][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.157278][    C1]  ? irq_exit_rcu (kernel/softirq.c:786)
[   27.157280][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.157281][    C1] RIP: 0033:0x7fbc255ac54e
[   27.157284][    C1] 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
[   27.157286][    C1] RSP: 002b:00007ffd388b90e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   27.157288][    C1] RAX: ffffffffffffffda RBX: 00005587f93099e0 RCX: 00007fbc255ac54e
[   27.157290][    C1] RDX: 0000000000002000 RSI: 00005587f9390a70 RDI: 0000000000000005
[   27.157291][    C1] RBP: 00007ffd388b90f0 R08: 0000000000000000 R09: 0000000000000000
[   27.157291][    C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00005587f93099e0
[   27.157292][    C1] R13: 00005587f938cac0 R14: 00005587f9309350 R15: 00005587f93099e0
| [  505.061193][   T12] softirqs last disabled at (10658): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [  505.061195][   T12] Preemption disabled at:
| [  505.061196][   T12] 0x0
| [  505.061205][   T12] Tainted: [W]=WARN
[  505.061206][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  505.061208][   T12] Workqueue: netns cleanup_net
[  505.061217][   T12] Call Trace:
[  505.061219][   T12]  <TASK>
[  505.061220][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  505.061227][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[  505.061231][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  505.061235][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061237][   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))
[  505.061240][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  505.061243][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  505.061248][   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)
[  505.061249][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  505.061252][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[  505.061253][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  505.061254][   T12]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  505.061257][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  505.061260][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  505.061264][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  505.061266][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  505.061268][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  505.061270][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[  505.061273][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  505.061275][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061276][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061277][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061278][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  505.061280][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  505.061281][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[  505.061284][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  505.061286][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  505.061288][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  505.061289][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  505.061291][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061292][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  505.061293][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  505.061295][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[  505.061296][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  505.061298][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  505.061300][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[  505.061302][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  505.061303][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061304][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  505.061307][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  505.061309][   T12]  _printk (kernel/printk/printk.c:2504)
[  505.061312][   T12]  ? snapshot_read.cold (user.c:?)
[  505.061314][   T12]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[  505.061317][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  505.061320][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[  505.061322][   T12]  br_device_event (net/bridge/br.c:111)
[  505.061324][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[  505.061326][   T12]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  505.061329][   T12]  notifier_call_chain (kernel/notifier.c:85)
[  505.061332][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[  505.061335][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[  505.061337][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[  505.061339][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[  505.061341][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  505.061342][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  505.061345][   T12]  ? kthread (kernel/kthread.c:436)
[  505.061347][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  505.061349][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  505.061351][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[  505.061353][   T12]  ? get_rps_cpu (net/core/dev.c:5240)
[  505.061355][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[  505.061356][   T12]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[  505.061358][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  505.061359][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[  505.061361][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  505.061363][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[  505.061365][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[  505.061367][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[  505.061369][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[  505.061372][   T12]  cleanup_net (net/core/net_namespace.c:706)
[  505.061374][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[  505.061375][   T12]  ? update_load_avg (kernel/sched/fair.c:5864)
[  505.061378][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  505.061379][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  505.061381][   T12]  process_one_work (kernel/workqueue.c:3387)
[  505.061384][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[  505.061386][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  505.061388][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[  505.061391][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[  505.061393][   T12]  kthread (kernel/kthread.c:436)
[  505.061395][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  505.061396][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[  505.061398][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[  505.061400][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[  505.061402][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  505.061404][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__fib6_clean_all:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
do_softirq:__dev_queue_xmit:dump_stack_lvl:__kmalloc_noprof:put_chars