======================================
| [   13.346237][  T235] softirqs last disabled at (17188): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   13.346239][  T235] Preemption disabled at:
| [   13.346240][  T235] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.346248][  T235] Tainted: [W]=WARN
[   13.346249][  T235] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.346251][  T235] Call Trace:
[   13.346252][  T235]  <TASK>
[   13.346254][  T235]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.346260][  T235]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.346261][  T235]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.346266][  T235]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.346270][  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)
[   13.346274][  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))
[   13.346276][  T235]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.346283][  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)
[   13.346285][  T235]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.346289][  T235]  put_chars (drivers/char/virtio_console.c:1176)
[   13.346291][  T235]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.346293][  T235]  ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3))
[   13.346297][  T235]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.346301][  T235]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.346305][  T235]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.346306][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346308][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346313][  T235]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.346314][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.346319][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.346323][  T235]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.346327][  T235]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.346329][  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))
[   13.346332][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346335][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.346339][  T235]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.346343][  T235]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.346345][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346350][  T235]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.346353][  T235]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.346355][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346357][  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)
[   13.346360][  T235]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.346362][  T235]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.346365][  T235]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.346368][  T235]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.346370][  T235]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.346375][  T235]  _printk (kernel/printk/printk.c:2504)
[   13.346378][  T235]  ? snapshot_read.cold (user.c:?)
[   13.346382][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.346384][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.346387][  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)
[   13.346391][  T235]  vlan_device_event.cold (net/8021q/vlan.c:347 (discriminator 1) net/8021q/vlan.c:388 (discriminator 1))
[   13.346395][  T235]  ? packet_notifier (./include/linux/rcupdate.h:882 net/packet/af_packet.c:4261)
[   13.346400][  T235]  ? unregister_vlan_dev (net/8021q/vlan.h:91 net/8021q/vlan.c:110)
[   13.346404][  T235]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   13.346410][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346412][  T235]  notifier_call_chain (kernel/notifier.c:85)
[   13.346416][  T235]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   13.346422][  T235]  ? netif_change_name (net/core/dev.c:1517)
[   13.346426][  T235]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   13.346429][  T235]  ? write_profile (profile.c:?)
[   13.346434][  T235]  netif_change_flags (net/core/dev.c:9882)
[   13.346438][  T235]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   13.346442][  T235]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.346444][  T235]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.346445][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.346448][  T235]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.346451][  T235]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.346453][  T235]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.346455][  T235]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.346457][  T235]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.346460][  T235]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.346461][  T235]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.346462][  T235]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.346464][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346466][  T235]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   13.346469][  T235]  ? ___sys_sendmsg (net/socket.c:2758)
[   13.346473][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.346475][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.346478][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346480][  T235]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.346481][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346482][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346484][  T235]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.346486][  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)
[   13.346488][  T235]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.346490][  T235]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.346494][  T235]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.346497][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346500][  T235]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.346505][  T235]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.346511][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.346512][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346517][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.346519][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.346521][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.346523][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.346527][  T235]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.346529][  T235]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.346532][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.346533][  T235]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.346538][  T235]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.346539][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.346543][  T235]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.346545][  T235]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.346548][  T235]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.346554][  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))
[   13.346556][  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))
[   13.346561][  T235]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.346565][  T235]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.346568][  T235]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.346572][  T235]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.346576][  T235]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.346580][  T235]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.346582][  T235]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   13.346587][  T235]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   13.346590][  T235]  ____sys_sendmsg (net/socket.c:2713)
[   13.346592][  T235]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.346594][  T235]  ? sock_write_iter (net/socket.c:1269)
[   13.346596][  T235]  ? move_addr_to_kernel (net/socket.c:258)
[   13.346604][  T235]  ___sys_sendmsg (net/socket.c:2767)
[   13.346606][  T235]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.346623][  T235]  __sys_sendmsg (net/socket.c:2799)
[   13.346626][  T235]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.346632][  T235]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.346635][  T235]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.346638][  T235]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.346641][  T235]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.346643][  T235] RIP: 0033:0x7f56df68754e
[   13.346647][  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
[   13.346649][  T235] RSP: 002b:00007ffc0569d8a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.346651][  T235] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f56df68754e
[   13.346653][  T235] RDX: 0000000000000000 RSI: 00007ffc0569d950 RDI: 0000000000000005
[   13.346654][  T235] RBP: 00007ffc0569d8b0 R08: 0000000000000000 R09: 0000000000000000
[   13.346654][  T235] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913289
[   13.346655][  T235] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc0569e020
| [   25.214721][  T284] softirqs last disabled at (21396): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   25.214723][  T284] Preemption disabled at:
| [   25.214723][  T284] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.214732][  T284] Tainted: [W]=WARN
[   25.214733][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.214734][  T284] Call Trace:
[   25.214736][  T284]  <TASK>
[   25.214737][  T284]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.214743][  T284]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.214745][  T284]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.214749][  T284]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.214753][  T284]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.214758][  T284]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   25.214759][  T284]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.214766][  T284]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.214769][  T284]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.214772][  T284]  put_chars (drivers/char/virtio_console.c:1176)
[   25.214775][  T284]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.214777][  T284]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.214780][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.214783][  T284]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.214787][  T284]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.214791][  T284]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   25.214793][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.214795][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.214799][  T284]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.214801][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.214805][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.214809][  T284]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.214813][  T284]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.214815][  T284]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   25.214818][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214822][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.214826][  T284]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.214830][  T284]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.214832][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.214837][  T284]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.214840][  T284]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.214842][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214844][  T284]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.214847][  T284]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.214849][  T284]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.214852][  T284]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.214855][  T284]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.214857][  T284]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.214861][  T284]  _printk (kernel/printk/printk.c:2504)
[   25.214865][  T284]  ? snapshot_read.cold (user.c:?)
[   25.214868][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.214870][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.214874][  T284]  ? 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)
[   25.214877][  T284]  vlan_device_event.cold (net/8021q/vlan.c:347 (discriminator 1) net/8021q/vlan.c:388 (discriminator 1))
[   25.214882][  T284]  ? packet_notifier (./include/linux/rcupdate.h:882 net/packet/af_packet.c:4261)
[   25.214887][  T284]  ? unregister_vlan_dev (net/8021q/vlan.h:91 net/8021q/vlan.c:110)
[   25.214890][  T284]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   25.214896][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214898][  T284]  notifier_call_chain (kernel/notifier.c:85)
[   25.214903][  T284]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853)
[   25.214908][  T284]  ? netif_change_name (net/core/dev.c:1517)
[   25.214911][  T284]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   25.214915][  T284]  ? write_profile (profile.c:?)
[   25.214920][  T284]  netif_change_flags (net/core/dev.c:9882)
[   25.214924][  T284]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   25.214927][  T284]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.214930][  T284]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.214931][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.214933][  T284]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.214936][  T284]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.214938][  T284]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.214940][  T284]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.214942][  T284]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.214945][  T284]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.214946][  T284]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.214947][  T284]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.214949][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.214951][  T284]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.214954][  T284]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.214958][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.214959][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.214962][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214964][  T284]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.214965][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214966][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214968][  T284]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.214970][  T284]  ? __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)
[   25.214973][  T284]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.214975][  T284]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.214978][  T284]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.214982][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.214984][  T284]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.214989][  T284]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.214995][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.214996][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.215001][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.215003][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.215005][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.215006][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.215010][  T284]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.215012][  T284]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.215015][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.215017][  T284]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.215021][  T284]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.215023][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.215026][  T284]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.215028][  T284]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.215031][  T284]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.215038][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.215040][  T284]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.215044][  T284]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.215048][  T284]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.215051][  T284]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.215055][  T284]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.215059][  T284]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.215063][  T284]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.215064][  T284]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.215070][  T284]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.215073][  T284]  ____sys_sendmsg (net/socket.c:2713)
[   25.215079][  T284]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.215081][  T284]  ? sock_write_iter (net/socket.c:1269)
[   25.215083][  T284]  ? move_addr_to_kernel (net/socket.c:258)
[   25.215090][  T284]  ___sys_sendmsg (net/socket.c:2767)
[   25.215093][  T284]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.215109][  T284]  __sys_sendmsg (net/socket.c:2799)
[   25.215112][  T284]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.215118][  T284]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.215121][  T284]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.215124][  T284]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.215127][  T284]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.215129][  T284] RIP: 0033:0x7fb7190bf54e
[   25.215133][  T284] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.215135][  T284] RSP: 002b:00007ffe6f653640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.215137][  T284] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb7190bf54e
[   25.215139][  T284] RDX: 0000000000000000 RSI: 00007ffe6f6536f0 RDI: 0000000000000005
[   25.215140][  T284] RBP: 00007ffe6f653650 R08: 0000000000000000 R09: 0000000000000000
[   25.215140][  T284] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913295


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