======================================
| [   23.799132][  T981]    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
| [   23.799281][  T981]
| [   23.799323][  T981]
| [   23.799323][  T981] stack backtrace:
[   23.799432][  T981] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.799434][  T981] Call Trace:
[   23.799436][  T981]  <TASK>
[   23.799437][  T981]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.799441][  T981]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125)
[   23.799444][  T981]  mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294)
[   23.799446][  T981]  mark_lock (kernel/locking/lockdep.c:4753)
[   23.799448][  T981]  mark_usage (kernel/locking/lockdep.c:4666)
[   23.799450][  T981]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   23.799452][  T981]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.799453][  T981]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   23.799455][  T981]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.799457][  T981]  ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[   23.799460][  T981]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   23.799461][  T981]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[   23.799463][  T981]  ? __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   23.799464][  T981]  __ipv6_dev_ac_dec (./include/linux/spinlock.h:342 net/ipv6/anycast.c:253 net/ipv6/anycast.c:419)
[   23.799466][  T981]  addrconf_leave_anycast (net/ipv6/addrconf.c:2289)
[   23.799468][  T981]  ? inet6_dump_ifinfo (net/ipv6/addrconf.c:6164)
[   23.799470][  T981]  ? __ipv6_isatap_ifid (net/ipv6/addrconf.c:2360)
[   23.799472][  T981]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   23.799474][  T981]  __ipv6_ifa_notify (net/ipv6/addrconf.c:6325)
[   23.799476][  T981]  ? cleanup_prefix_route (./include/net/ip6_fib.h:558 (discriminator 3))
[   23.799478][  T981]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.799481][  T981]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.799482][  T981]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   23.799483][  T981]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.799485][  T981]  ? addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004)
[   23.799487][  T981]  addrconf_ifdown.isra.0 (net/ipv6/addrconf.c:4004)
[   23.799489][  T981]  ? addrconf_dad_run (net/ipv6/addrconf.c:4415 (discriminator 1))
[   23.799491][  T981]  ? neigh_flush_one (./include/linux/skbuff.h:2198)
[   23.799494][  T981]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   23.799495][  T981]  addrconf_notify (net/ipv6/addrconf.c:3803)
[   23.799497][  T981]  ? team_port_get_rtnl (drivers/net/team/team_core.c:42 (discriminator 3))
[   23.799500][  T981]  notifier_call_chain (kernel/notifier.c:85)
[   23.799502][  T981]  netif_close_many (net/core/dev.c:2287 net/core/dev.c:2301 net/core/dev.c:1805)
[   23.799504][  T981]  ? 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)
[   23.799506][  T981]  ? __dev_close_many (net/core/dev.c:1781)
[   23.799509][  T981]  ? netif_close_many_and_unlock (net/core/dev.c:12329)
[   23.799511][  T981]  unregister_netdevice_many_notify (net/core/dev.c:12405)
[   23.799513][  T981]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.799514][  T981]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.799516][  T981]  ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3))
[   23.799518][  T981]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.799520][  T981]  rtnl_dellink (net/core/rtnetlink.c:3593 net/core/rtnetlink.c:3635)
[   23.799522][  T981]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.799523][  T981]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.799525][  T981]  ? rtnl_mdb_del (net/core/rtnetlink.c:6901 (discriminator 2))
[   23.799526][  T981]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.799527][  T981]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.799533][  T981]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.799534][  T981]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.799536][  T981]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   23.799537][  T981]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.799539][  T981]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.799540][  T981]  ? is_bpf_text_address (./include/linux/rcupdate.h:300 (discriminator 2) ./include/linux/rcupdate.h:838 (discriminator 2) kernel/bpf/core.c:747 (discriminator 2))
[   23.799543][  T981]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.799545][  T981]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.799546][  T981]  ? rtnl_mdb_del (net/core/rtnetlink.c:6901 (discriminator 2))
[   23.799548][  T981]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   23.799549][  T981]  ? rtnl_mdb_del (net/core/rtnetlink.c:6901 (discriminator 2))
[   23.799551][  T981]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7062)
[   23.799552][  T981]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.799554][  T981]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.799555][  T981]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.799557][  T981]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   23.799558][  T981]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.799560][  T981]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.799562][  T981]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.799564][  T981]  ? netlink_ack (./include/linux/skbuff.h:2720)
[   23.799566][  T981]  ? 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))
[   23.799568][  T981]  ? 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))
[   23.799570][  T981]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.799572][  T981]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.799574][  T981]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.799575][  T981]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.799577][  T981]  ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[   23.799579][  T981]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   23.799582][  T981]  ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4))
[   23.799584][  T981]  ? copy_msghdr_from_user (net/socket.c:2635)
[   23.799586][  T981]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5354)
[   23.799588][  T981]  ? move_addr_to_kernel (net/socket.c:258)
[   23.799590][  T981]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.799593][  T981]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[   23.799595][  T981]  ___sys_sendmsg (net/socket.c:2752)
[   23.799597][  T981]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[   23.799599][  T981]  ? copy_msghdr_from_user (net/socket.c:2603)
[   23.799604][  T981]  __sys_sendmsg (net/socket.c:2784)
[   23.799606][  T981]  ? __sys_sendmsg_sock (net/socket.c:2765)
[   23.799607][  T981]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6))
[   23.799609][  T981]  ? 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)
[   23.799610][  T981]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   23.799612][  T981]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.799613][  T981]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   23.799616][  T981]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   23.799619][  T981]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.799620][  T981] RIP: 0033:0x7fac844cb08e
[   23.799623][  T981] 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
[   23.799625][  T981] RSP: 002b:00007fffcba88d10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.799627][  T981] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fac844cb08e
[   23.799629][  T981] RDX: 0000000000000000 RSI: 00007fffcba88dc0 RDI: 0000000000000005
[   23.799630][  T981] RBP: 00007fffcba88d20 R08: 0000000000000000 R09: 0000000000000000
[   23.799630][  T981] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a1933d5


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