======================================
| [   17.993958][    C2]    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
| [   17.994132][    C2]
| [   17.994181][    C2]
| [   17.994181][    C2] stack backtrace:
[   17.994303][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.994305][    C2] Call Trace:
[   17.994306][    C2]  <IRQ>
[   17.994307][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.994312][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125)
[   17.994315][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294)
[   17.994317][    C2]  mark_lock (kernel/locking/lockdep.c:4753)
[   17.994319][    C2]  mark_usage (kernel/locking/lockdep.c:4642)
[   17.994321][    C2]  __lock_acquire (kernel/locking/lockdep.c:5191)
[   17.994322][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.994326][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.994327][    C2]  ? ipv6_get_lladdr (net/ipv6/addrconf.c:1941)
[   17.994329][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994332][    C2]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[   17.994334][    C2]  _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:192 (discriminator 3) kernel/locking/spinlock.c:256 (discriminator 3))
[   17.994336][    C2]  ? ipv6_get_lladdr (net/ipv6/addrconf.c:1941)
[   17.994337][    C2]  ipv6_get_lladdr (net/ipv6/addrconf.c:1941)
[   17.994339][    C2]  ndisc_send_ns (net/ipv6/ndisc.c:662)
[   17.994341][    C2]  ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/ipv6/addrconf.c:2015 (discriminator 2))
[   17.994343][    C2]  ? ndisc_parse_options (net/ipv6/ndisc.c:285)
[   17.994344][    C2]  ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:871 net/ipv6/addrconf.c:2015)
[   17.994346][    C2]  ndisc_solicit (net/ipv6/ndisc.c:762)
[   17.994348][    C2]  ? ndisc_send_ns (net/ipv6/ndisc.c:672)
[   17.994350][    C2]  ? neigh_probe (net/core/neighbour.c:1094)
[   17.994352][    C2]  neigh_probe (net/core/neighbour.c:1096)
[   17.994353][    C2]  __neigh_event_send (net/core/neighbour.c:1276)
[   17.994355][    C2]  ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:8)
[   17.994357][    C2]  ? ___neigh_create (./include/linux/spinlock.h:396 net/core/neighbour.c:724)
[   17.994360][    C2]  neigh_resolve_output (./include/net/neighbour.h:480 ./include/net/neighbour.h:486 ./include/net/neighbour.h:484 net/core/neighbour.c:1603)
[   17.994362][    C2]  ip6_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv6/ip6_output.c:136 (discriminator 3))
[   17.994364][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:328)
[   17.994365][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.994366][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.994369][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.994371][    C2]  ? ip6_mtu (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/ip6_route.h:382 (discriminator 2) net/ipv6/route.c:3288 (discriminator 2))
[   17.994373][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[   17.994375][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[   17.994377][    C2]  ? ip6_finish_output (./include/net/inet_sock.h:338 (discriminator 1))
[   17.994378][    C2]  ? l3mdev_l3_out.constprop.0 (./include/linux/rcupdate.h:871 ./include/net/l3mdev.h:222)
[   17.994381][    C2] ip6_tnl_xmit (./include/net/ip6_tunnel.h:174 (discriminator 1) net/ipv6/ip6_tunnel.c:1292 (discriminator 1)) ip6_tunnel
[   17.994385][    C2]  ? ip_route_input (./include/linux/skbuff.h:1167) ip6_tunnel
[   17.994386][    C2]  ? pskb_expand_head (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:2353)
[   17.994389][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.994391][    C2]  ? __pskb_copy_fclone (./include/linux/skbuff.h:1727)
[   17.994393][    C2] __gre6_xmit (net/ipv6/ip6_gre.c:787) ip6_gre
[   17.994395][    C2]  ? __ipv6_chk_addr_and_flags (net/ipv6/addrconf.c:1995)
[   17.994397][    C2]  ? gre_build_header (./include/net/gre.h:137 (discriminator 2)) ip6_gre
[   17.994399][    C2]  ? ip6_tnl_xmit_ctl (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/ipv6/ip6_tunnel.c:1071 (discriminator 2)) ip6_tunnel
[   17.994401][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   17.994405][    C2] ip6gre_tunnel_xmit (net/ipv6/ip6_gre.c:811 net/ipv6/ip6_gre.c:894) ip6_gre
[   17.994407][    C2]  ? __gre6_xmit (./include/linux/skbuff.h:2906) ip6_gre
[   17.994409][    C2]  ? sock_def_readable (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/core/sock.c:3620 (discriminator 2))
[   17.994411][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.994414][    C2]  ? dev_queue_xmit_nit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/core/dev.c:2610 (discriminator 2))
[   17.994417][    C2]  dev_hard_start_xmit (./include/linux/netdevice.h:5384 ./include/linux/netdevice.h:5393 net/core/dev.c:3888 net/core/dev.c:3904)
[   17.994418][    C2]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   17.994420][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994422][    C2]  __dev_queue_xmit (net/core/dev.c:4871)
[   17.994424][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.994426][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4732)
[   17.994428][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.994430][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[   17.994432][    C2]  ? ___neigh_create (./include/linux/spinlock.h:396 net/core/neighbour.c:724)
[   17.994434][    C2]  ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98)
[   17.994436][    C2]  ip_finish_output2 (./include/net/neighbour.h:560 (discriminator 3) net/ipv4/ip_output.c:237 (discriminator 3))
[   17.994438][    C2]  ? ip_dst_mtu_maybe_forward (./include/linux/rcupdate.h:871 ./include/net/ip.h:504)
[   17.994440][    C2]  ? ip4_dst_hoplimit (./include/net/dst.h:582 (discriminator 4) ./include/net/dst.h:587 (discriminator 4) ./include/net/route.h:393 (discriminator 4))
[   17.994442][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994444][    C2]  ip_output (./include/linux/netfilter.h:307 net/ipv4/ip_output.c:438)
[   17.994446][    C2]  ? ip_finish_output (./include/linux/cgroup.h:847)
[   17.994447][    C2]  ? ip4_frag_init (ip_fragment.c:?)
[   17.994449][    C2]  ? ip_forward (./include/linux/netfilter.h:316 net/ipv4/ip_forward.c:162)
[   17.994451][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6665 (discriminator 2))
[   17.994453][    C2]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[   17.994454][    C2]  ? ip_local_deliver (./include/linux/rcupdate.h:867 (discriminator 3))
[   17.994457][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[   17.994458][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.994459][    C2]  ? init_data_structures_once.part.0 (kernel/locking/lockdep.c:3397 (discriminator 1) kernel/locking/lockdep.c:3438 (discriminator 1) kernel/locking/lockdep.c:3482 (discriminator 1) kernel/locking/lockdep.c:1210 (discriminator 1))
[   17.994461][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6203)
[   17.994462][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[   17.994463][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6249 (discriminator 2))
[   17.994465][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994468][    C2]  process_backlog (net/core/dev.c:6667)
[   17.994469][    C2]  __napi_poll (net/core/dev.c:7726)
[   17.994471][    C2]  net_rx_action (net/core/dev.c:7789 net/core/dev.c:7946)
[   17.994473][    C2]  ? __napi_poll (./include/net/gro.h:507)
[   17.994474][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.994477][    C2]  ? clockevents_program_event (kernel/time/clockevents.c:372)
[   17.994480][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[   17.994481][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994483][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994484][    C2]  handle_softirqs (kernel/softirq.c:622)
[   17.994486][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994488][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[   17.994489][    C2]  ? trace_csd_function_exit (./include/trace/events/csd.h:64 (discriminator 22))
[   17.994491][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[   17.994493][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[   17.994494][    C2]  </IRQ>
[   17.994495][    C2]  <TASK>
[   17.994495][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4906 (discriminator 2))
[   17.994497][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[   17.994499][    C2]  __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:912 (discriminator 2) net/core/dev.c:4906 (discriminator 2))
[   17.994501][    C2]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   17.994505][    C2]  ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112)
[   17.994507][    C2]  ? net_dim (lib/dim/net_dim.c:367)
[   17.994509][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4732)
[   17.994512][    C2]  ? packet_release (net/packet/af_packet.c:3171)
[   17.994514][    C2]  packet_snd (net/packet/af_packet.c:3082)
[   17.994517][    C2]  ? tpacket_snd (net/packet/af_packet.c:2685)
[   17.994518][    C2]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.994522][    C2]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.994523][    C2]  ? __might_fault (mm/memory.c:7340 (discriminator 5))
[   17.994524][    C2]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[   17.994526][    C2]  ? __ia32_sys_getpeername (net/socket.c:2219)
[   17.994529][    C2]  ? sock_ioctl (net/socket.c:1434)
[   17.994532][    C2]  ? do_user_addr_fault (./include/linux/mmap_lock.h:619 arch/x86/mm/fault.c:1413)
[   17.994536][    C2]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[   17.994537][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.994541][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   17.994542][    C2]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[   17.994543][    C2]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.994544][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[   17.994546][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[   17.994547][    C2]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.994549][    C2] RIP: 0033:0x7fab47eb508e
[   17.994552][    C2] 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
[   17.994554][    C2] RSP: 002b:00007ffcd3233980 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   17.994556][    C2] RAX: ffffffffffffffda RBX: 0000562168458b22 RCX: 00007fab47eb508e
[   17.994558][    C2] RDX: 0000000000000062 RSI: 0000562168458b22 RDI: 0000000000000005
[   17.994559][    C2] RBP: 00007ffcd3233990 R08: 00007ffcd32339e0 R09: 0000000000000014
[   17.994560][    C2] R10: 0000000000000000 R11: 0000000000000202 R12: 0000562168458830


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_read_lock_bh