======================================
| [   28.375142][  T663]    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
| [   28.375299][  T663]
| [   28.375351][  T663]
| [   28.375351][  T663] stack backtrace:
[   28.375581][  T663] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.375583][  T663] Call Trace:
[   28.375585][  T663]  <TASK>
[   28.375586][  T663]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.375589][  T663]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125)
[   28.375592][  T663]  mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294)
[   28.375595][  T663]  mark_lock (kernel/locking/lockdep.c:4753)
[   28.375596][  T663]  mark_usage (kernel/locking/lockdep.c:4666)
[   28.375598][  T663]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   28.375600][  T663]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.375602][  T663]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   28.375604][  T663]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   28.375607][  T663]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   28.375609][  T663]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   28.375610][  T663]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[   28.375612][  T663]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   28.375613][  T663]  __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   28.375616][  T663]  addrconf_leave_anycast (net/ipv6/addrconf.c:2289)
[   28.375617][  T663]  ? inet6_dump_ifinfo (net/ipv6/addrconf.c:6164)
[   28.375619][  T663]  ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360)
[   28.375621][  T663]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   28.375624][  T663]  __ipv6_ifa_notify (net/ipv6/addrconf.c:6325)
[   28.375626][  T663]  ? cleanup_prefix_route (./include/net/ip6_fib.h:558 (discriminator 3))
[   28.375628][  T663]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.375630][  T663]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.375631][  T663]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.375633][  T663]  ? ipv6_del_addr (net/ipv6/addrconf.c:6349 net/ipv6/addrconf.c:1338)
[   28.375635][  T663]  ipv6_del_addr (net/ipv6/addrconf.c:6349 net/ipv6/addrconf.c:1338)
[   28.375637][  T663]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.375638][  T663]  ? addrconf_dad_start (./include/linux/refcount.h:289)
[   28.375640][  T663]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   28.375642][  T663]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   28.375644][  T663]  inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3134)
[   28.375647][  T663]  inet6_rtm_deladdr (net/ipv6/addrconf.c:4827)
[   28.375649][  T663]  ? inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3146 (discriminator 2))
[   28.375652][  T663]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/core/rtnetlink.c:7060 (discriminator 2))
[   28.375654][  T663]  ? inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3146 (discriminator 2))
[   28.375655][  T663]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7062)
[   28.375657][  T663]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   28.375658][  T663]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.375660][  T663]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   28.375662][  T663]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   28.375663][  T663]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   28.375664][  T663]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.375666][  T663]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.375668][  T663]  ? netlink_ack (./include/linux/skbuff.h:2720)
[   28.375670][  T663]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   28.375672][  T663]  ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   28.375674][  T663]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.375676][  T663]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.375679][  T663]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.375681][  T663]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   28.375688][  T663]  ? ___sys_sendmsg (net/socket.c:2756)
[   28.375691][  T663]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   28.375693][  T663]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   28.375698][  T663]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   28.375700][  T663]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.375703][  T663]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   28.375704][  T663]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   28.375706][  T663]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   28.375708][  T663]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   28.375710][  T663]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   28.375711][  T663]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.375713][  T663] RIP: 0033:0x7fd4f69d208e
[   28.375716][  T663] Code: 4d 89 d8 e8 94 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 94 bd 00 00       	call   0xbd9c
   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
[   28.375718][  T663] RSP: 002b:00007fff473b9e70 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   28.375721][  T663] RAX: ffffffffffffffda RBX: 000000000049f620 RCX: 00007fd4f69d208e
[   28.375722][  T663] RDX: 00000000000000e8 RSI: 00007fff473ba2f0 RDI: 0000000000000005
[   28.375723][  T663] RBP: 00007fff473b9e80 R08: 0000000000000000 R09: 0000000000000000
[   28.375724][  T663] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000100000001


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock