======================================
| [  106.054484][  T927]    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
| [  106.054596][  T927]
| [  106.054641][  T927]
| [  106.054641][  T927] stack backtrace:
[  106.054748][  T927] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  106.054750][  T927] Call Trace:
[  106.054752][  T927]  <TASK>
[  106.054753][  T927]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  106.054757][  T927]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125)
[  106.054760][  T927]  mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294)
[  106.054763][  T927]  mark_lock (kernel/locking/lockdep.c:4753)
[  106.054765][  T927]  mark_usage (kernel/locking/lockdep.c:4666)
[  106.054766][  T927]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  106.054768][  T927]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  106.054770][  T927]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[  106.054772][  T927]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  106.054775][  T927]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[  106.054777][  T927]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  106.054778][  T927]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  106.054780][  T927]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[  106.054781][  T927]  __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[  106.054783][  T927]  addrconf_leave_anycast (net/ipv6/addrconf.c:2289)
[  106.054785][  T927]  ? inet6_dump_ifinfo (net/ipv6/addrconf.c:6164)
[  106.054787][  T927]  ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360)
[  106.054789][  T927]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[  106.054791][  T927]  __ipv6_ifa_notify (net/ipv6/addrconf.c:6325)
[  106.054793][  T927]  ? cleanup_prefix_route (./include/net/ip6_fib.h:558 (discriminator 3))
[  106.054795][  T927]  ? __cancel_work (kernel/workqueue.c:4466 (discriminator 6))
[  106.054797][  T927]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  106.054799][  T927]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  106.054800][  T927]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  106.054802][  T927]  ? ipv6_del_addr (net/ipv6/addrconf.c:6349 net/ipv6/addrconf.c:1338)
[  106.054804][  T927]  ipv6_del_addr (net/ipv6/addrconf.c:6349 net/ipv6/addrconf.c:1338)
[  106.054806][  T927]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  106.054808][  T927]  ? addrconf_dad_start (./include/linux/refcount.h:289)
[  106.054810][  T927]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  106.054811][  T927]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  106.054813][  T927]  inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3134)
[  106.054816][  T927]  inet6_rtm_deladdr (net/ipv6/addrconf.c:4827)
[  106.054818][  T927]  ? inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3146 (discriminator 2))
[  106.054821][  T927]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/core/rtnetlink.c:7060 (discriminator 2))
[  106.054823][  T927]  ? inet6_addr_del.isra.0 (net/ipv6/addrconf.c:3146 (discriminator 2))
[  106.054825][  T927]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7062)
[  106.054826][  T927]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  106.054828][  T927]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.054829][  T927]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  106.054831][  T927]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  106.054832][  T927]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  106.054835][  T927]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  106.054836][  T927]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  106.054838][  T927]  ? netlink_ack (./include/linux/skbuff.h:2720)
[  106.054841][  T927]  ? 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))
[  106.054842][  T927]  ? 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))
[  106.054844][  T927]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  106.054847][  T927]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  106.054849][  T927]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  106.054850][  T927]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  106.054852][  T927]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[  106.054855][  T927]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[  106.054858][  T927]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[  106.054860][  T927]  ? copy_msghdr_from_user (net/socket.c:2635)
[  106.054862][  T927]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5354)
[  106.054863][  T927]  ? move_addr_to_kernel (net/socket.c:258)
[  106.054866][  T927]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  106.054869][  T927]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  106.054871][  T927]  ___sys_sendmsg (net/socket.c:2752)
[  106.054872][  T927]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[  106.054875][  T927]  ? copy_msghdr_from_user (net/socket.c:2603)
[  106.054880][  T927]  __sys_sendmsg (net/socket.c:2784)
[  106.054881][  T927]  ? __sys_sendmsg_sock (net/socket.c:2765)
[  106.054883][  T927]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[  106.054885][  T927]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  106.054886][  T927]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  106.054888][  T927]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  106.054890][  T927]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  106.054893][  T927]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  106.054895][  T927]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  106.054897][  T927] RIP: 0033:0x7f4dd6a3608e
[  106.054900][  T927] 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
[  106.054901][  T927] RSP: 002b:00007ffd20480ed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  106.054904][  T927] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4dd6a3608e
[  106.054906][  T927] RDX: 0000000000000000 RSI: 00007ffd20480f80 RDI: 0000000000000005
[  106.054907][  T927] RBP: 00007ffd20480ee0 R08: 0000000000000000 R09: 0000000000000000
[  106.054908][  T927] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a198935


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