======================================
| [   11.380131][  T235] softirqs last disabled at (17018): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   11.380133][  T235] Preemption disabled at:
| [   11.380134][  T235] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.380142][  T235] Tainted: [W]=WARN
[   11.380143][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.380145][  T235] Call Trace:
[   11.380146][  T235]  <TASK>
[   11.380148][  T235]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.380154][  T235]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.380155][  T235]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.380160][  T235]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.380164][  T235]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.380168][  T235]  __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))
[   11.380170][  T235]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.380176][  T235]  ? 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)
[   11.380179][  T235]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.380183][  T235]  put_chars (drivers/char/virtio_console.c:1176)
[   11.380185][  T235]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.380186][  T235]  ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3))
[   11.380191][  T235]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.380194][  T235]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.380213][  T235]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.380215][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380217][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380221][  T235]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.380223][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.380227][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.380231][  T235]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.380235][  T235]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.380237][  T235]  ? 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))
[   11.380240][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380243][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.380247][  T235]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.380251][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.380253][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380258][  T235]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.380261][  T235]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.380262][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380264][  T235]  ? 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)
[   11.380268][  T235]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.380270][  T235]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.380272][  T235]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.380275][  T235]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.380277][  T235]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.380282][  T235]  _printk (kernel/printk/printk.c:2504)
[   11.380287][  T235]  ? snapshot_read.cold (user.c:?)
[   11.380291][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.380293][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.380297][  T235]  ? notifier_call_chain (./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/notifier.h:59 kernel/notifier.c:84)
[   11.380300][  T235]  vlan_device_event.cold (net/8021q/vlan.c:347 (discriminator 1) net/8021q/vlan.c:388 (discriminator 1))
[   11.380304][  T235]  ? packet_notifier (./include/linux/rcupdate.h:882 net/packet/af_packet.c:4261)
[   11.380309][  T235]  ? unregister_vlan_dev (net/8021q/vlan.h:91 net/8021q/vlan.c:110)
[   11.380313][  T235]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   11.380319][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380321][  T235]  notifier_call_chain (kernel/notifier.c:85)
[   11.380325][  T235]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   11.380330][  T235]  ? netif_change_name (net/core/dev.c:1517)
[   11.380334][  T235]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   11.380337][  T235]  ? write_profile (profile.c:?)
[   11.380343][  T235]  netif_change_flags (net/core/dev.c:9882)
[   11.380346][  T235]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   11.380350][  T235]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.380352][  T235]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.380353][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.380356][  T235]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.380360][  T235]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.380362][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.380363][  T235]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.380366][  T235]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.380368][  T235]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.380369][  T235]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.380371][  T235]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.380373][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380375][  T235]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.380378][  T235]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.380382][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.380384][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.380386][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380388][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.380389][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380390][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380392][  T235]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.380394][  T235]  ? __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)
[   11.380396][  T235]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.380398][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.380402][  T235]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.380405][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380407][  T235]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.380412][  T235]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.380418][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.380419][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380424][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.380426][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.380428][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.380429][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.380433][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.380435][  T235]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.380438][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.380439][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.380444][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.380446][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.380449][  T235]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.380451][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.380454][  T235]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.380460][  T235]  ? 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))
[   11.380462][  T235]  ? 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))
[   11.380467][  T235]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.380471][  T235]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.380473][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.380478][  T235]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.380482][  T235]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.380485][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.380487][  T235]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.380492][  T235]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.380495][  T235]  ____sys_sendmsg (net/socket.c:2713)
[   11.380497][  T235]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.380499][  T235]  ? sock_write_iter (net/socket.c:1269)
[   11.380501][  T235]  ? move_addr_to_kernel (net/socket.c:258)
[   11.380508][  T235]  ___sys_sendmsg (net/socket.c:2767)
[   11.380511][  T235]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.380527][  T235]  __sys_sendmsg (net/socket.c:2799)
[   11.380529][  T235]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.380536][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.380538][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.380541][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.380544][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.380546][  T235] RIP: 0033:0x7f1a9885854e
[   11.380550][  T235] 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
[   11.380552][  T235] RSP: 002b:00007ffe0476b0a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.380554][  T235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1a9885854e
[   11.380556][  T235] RDX: 0000000000000000 RSI: 00007ffe0476b150 RDI: 0000000000000005
[   11.380557][  T235] RBP: 00007ffe0476b0b0 R08: 0000000000000000 R09: 0000000000000000
[   11.380557][  T235] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911caa
[   11.380558][  T235] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0476b820
| [   23.004315][  T281] softirqs last disabled at (22690): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   23.004317][  T281] Preemption disabled at:
| [   23.004318][  T281] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.004326][  T281] Tainted: [W]=WARN
[   23.004327][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.004329][  T281] Call Trace:
[   23.004330][  T281]  <TASK>
[   23.004332][  T281]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.004338][  T281]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.004339][  T281]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.004343][  T281]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.004348][  T281]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.004352][  T281]  __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))
[   23.004354][  T281]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.004360][  T281]  ? 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)
[   23.004363][  T281]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.004366][  T281]  put_chars (drivers/char/virtio_console.c:1176)
[   23.004369][  T281]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.004372][  T281]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.004374][  T281]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.004377][  T281]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.004381][  T281]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.004385][  T281]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   23.004387][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004389][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004393][  T281]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.004395][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004399][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004403][  T281]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.004407][  T281]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.004409][  T281]  ? 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))
[   23.004412][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004414][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004418][  T281]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.004422][  T281]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.004423][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004429][  T281]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.004432][  T281]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.004434][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004435][  T281]  ? 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)
[   23.004439][  T281]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.004441][  T281]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.004443][  T281]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.004446][  T281]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.004449][  T281]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.004453][  T281]  _printk (kernel/printk/printk.c:2504)
[   23.004457][  T281]  ? snapshot_read.cold (user.c:?)
[   23.004460][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004462][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004466][  T281]  ? notifier_call_chain (./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/notifier.h:59 kernel/notifier.c:84)
[   23.004469][  T281]  vlan_device_event.cold (net/8021q/vlan.c:347 (discriminator 1) net/8021q/vlan.c:388 (discriminator 1))
[   23.004474][  T281]  ? packet_notifier (./include/linux/rcupdate.h:882 net/packet/af_packet.c:4261)
[   23.004479][  T281]  ? unregister_vlan_dev (net/8021q/vlan.h:91 net/8021q/vlan.c:110)
[   23.004482][  T281]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   23.004488][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004489][  T281]  notifier_call_chain (kernel/notifier.c:85)
[   23.004494][  T281]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   23.004499][  T281]  ? netif_change_name (net/core/dev.c:1517)
[   23.004503][  T281]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   23.004506][  T281]  ? write_profile (profile.c:?)
[   23.004511][  T281]  netif_change_flags (net/core/dev.c:9882)
[   23.004515][  T281]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   23.004519][  T281]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.004521][  T281]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.004522][  T281]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.004524][  T281]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.004527][  T281]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.004529][  T281]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.004531][  T281]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.004533][  T281]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.004535][  T281]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.004536][  T281]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.004538][  T281]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.004540][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004542][  T281]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.004545][  T281]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.004549][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004551][  T281]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.004553][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004555][  T281]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004556][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004557][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004559][  T281]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.004561][  T281]  ? __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)
[   23.004563][  T281]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.004565][  T281]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.004569][  T281]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.004572][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004574][  T281]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.004579][  T281]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.004585][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004586][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004591][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004593][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004595][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004596][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.004600][  T281]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004602][  T281]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.004605][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.004607][  T281]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004611][  T281]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004613][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004616][  T281]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.004618][  T281]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.004621][  T281]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.004627][  T281]  ? 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))
[   23.004629][  T281]  ? 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))
[   23.004634][  T281]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.004637][  T281]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.004640][  T281]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004644][  T281]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.004648][  T281]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.004652][  T281]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.004653][  T281]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.004659][  T281]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.004661][  T281]  ____sys_sendmsg (net/socket.c:2713)
[   23.004664][  T281]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.004666][  T281]  ? sock_write_iter (net/socket.c:1269)
[   23.004668][  T281]  ? move_addr_to_kernel (net/socket.c:258)
[   23.004675][  T281]  ___sys_sendmsg (net/socket.c:2767)
[   23.004678][  T281]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.004694][  T281]  __sys_sendmsg (net/socket.c:2799)
[   23.004696][  T281]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.004703][  T281]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004705][  T281]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.004708][  T281]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.004711][  T281]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.004713][  T281] RIP: 0033:0x7f4260ab954e
[   23.004717][  T281] 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
[   23.004719][  T281] RSP: 002b:00007ffec4ff0fa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.004721][  T281] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4260ab954e
[   23.004723][  T281] RDX: 0000000000000000 RSI: 00007ffec4ff1050 RDI: 0000000000000005
[   23.004723][  T281] RBP: 00007ffec4ff0fb0 R08: 0000000000000000 R09: 0000000000000000
[   23.004724][  T281] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911cb6


Finger prints:
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars