======================================
| [  132.486544][    C2]    entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
| [  132.486662][    C2]
| [  132.486757][    C2]
| [  132.486757][    C2] stack backtrace:
[  132.486874][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  132.486876][    C2] Call Trace:
[  132.486877][    C2]  <IRQ>
[  132.486878][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  132.486882][    C2]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4125)
[  132.486885][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4079 kernel/locking/lockdep.c:4158 kernel/locking/lockdep.c:4294)
[  132.486888][    C2]  mark_lock (kernel/locking/lockdep.c:4753)
[  132.486890][    C2]  mark_usage (kernel/locking/lockdep.c:4642)
[  132.486891][    C2]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  132.486893][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  132.486895][    C2]  ? inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5873)
[  132.486897][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  132.486900][    C2]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  132.486902][    C2]  _raw_read_lock_bh (./include/linux/rwlock_api_smp.h:192 (discriminator 3) kernel/locking/spinlock.c:256 (discriminator 3))
[  132.486903][    C2]  ? inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5873)
[  132.486905][    C2]  inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5873)
[  132.486907][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  132.486908][    C2]  ? __ipv6_dev_get_saddr (net/ipv6/addrconf.c:1749 (discriminator 13))
[  132.486910][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  132.486912][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[  132.486916][    C2]  inet6_fill_ifinfo (net/ipv6/addrconf.c:6125)
[  132.486918][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  132.486920][    C2]  ? in6_dev_get (./include/net/addrconf.h:407 (discriminator 4))
[  132.486922][    C2]  ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[  132.486924][    C2]  ? napi_skb_cache_get (./include/linux/local_lock_internal.h:60 (discriminator 7) net/core/skbuff.c:305 (discriminator 7))
[  132.486926][    C2]  ? __ipv6_chk_addr_and_flags (./include/linux/rcupdate.h:871 net/ipv6/addrconf.c:2015)
[  132.486929][    C2]  inet6_ifinfo_notify (net/ipv6/addrconf.c:6210)
[  132.486930][    C2]  ndisc_router_discovery (net/ipv6/ndisc.c:1594)
[  132.486933][    C2]  ? pndisc_redo (./include/linux/skbuff.h:1325)
[  132.486934][    C2]  ? ip6_pol_route_lookup (net/ipv6/route.c:1280)
[  132.486937][    C2]  ? fib6_table_lookup (net/ipv6/route.c:2255)
[  132.486940][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  132.486942][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  132.486943][    C2]  ? ndisc_rcv (./include/net/addrconf.h:348 (discriminator 8) net/ipv6/ndisc.c:1793 (discriminator 8) net/ipv6/ndisc.c:1810 (discriminator 8))
[  132.486945][    C2]  icmpv6_rcv (net/ipv6/icmp.c:1194)
[  132.486948][    C2]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:479)
[  132.486951][    C2]  ip6_input_finish (net/ipv6/ip6_input.c:534)
[  132.486953][    C2]  ip6_input (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv6/ip6_input.c:545)
[  132.486955][    C2]  ? ip6_input_finish (net/ipv6/ip6_input.c:527 (discriminator 46))
[  132.486957][    C2]  ? ip6_rcv_core (./include/linux/skbuff.h:3394 net/ipv6/ip6_input.c:332)
[  132.486959][    C2]  ipv6_rcv (./include/net/dst.h:480 (discriminator 4) net/ipv6/ip6_input.c:119 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) ./include/linux/netfilter.h:312 (discriminator 4) net/ipv6/ip6_input.c:351 (discriminator 4))
[  132.486961][    C2]  ? ip6_rcv_core (net/ipv6/ip6_input.c:211 (discriminator 96))
[  132.486962][    C2]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  132.486964][    C2]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  132.486966][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674)
[  132.486968][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  132.486969][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6665 (discriminator 2))
[  132.486971][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6203)
[  132.486973][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  132.486975][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6249 (discriminator 2))
[  132.486976][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  132.486979][    C2]  process_backlog (net/core/dev.c:6667)
[  132.486982][    C2]  __napi_poll (net/core/dev.c:7726)
[  132.486984][    C2]  net_rx_action (net/core/dev.c:7789 net/core/dev.c:7946)
[  132.486986][    C2]  ? __napi_poll (./include/net/gro.h:507)
[  132.486988][    C2]  ? trace_rcu_this_gp.isra.0 (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3) ./include/trace/events/rcu.h:107 (discriminator 3) kernel/rcu/tree.c:995 (discriminator 3))
[  132.486990][    C2]  ? trace_rcu_quiescent_state_report (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3) ./include/trace/events/rcu.h:368 (discriminator 3))
[  132.486993][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  132.486995][    C2]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  132.486996][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  132.486998][    C2]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  132.487000][    C2]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[  132.487001][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  132.487002][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  132.487004][    C2]  handle_softirqs (kernel/softirq.c:622)
[  132.487006][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  132.487008][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  132.487010][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[  132.487012][    C2]  </IRQ>
[  132.487012][    C2]  <TASK>
[  132.487013][    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))
[  132.487015][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[  132.487016][    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))
[  132.487018][    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)
[  132.487022][    C2]  ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[  132.487024][    C2]  ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112)
[  132.487025][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4732)
[  132.487028][    C2]  ? packet_parse_headers (./include/linux/skbuff.h:1627 ./include/linux/skbuff.h:3198 net/packet/af_packet.c:1939)
[  132.487030][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  132.487031][    C2]  ? packet_parse_headers (./include/linux/skbuff.h:1627 ./include/linux/skbuff.h:3198 net/packet/af_packet.c:1939)
[  132.487034][    C2]  ? packet_release (net/packet/af_packet.c:3171)
[  132.487036][    C2]  packet_snd (net/packet/af_packet.c:3082)
[  132.487039][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  132.487040][    C2]  ? tpacket_snd (net/packet/af_packet.c:2685)
[  132.487042][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  132.487044][    C2]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 5))
[  132.487047][    C2]  ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[  132.487049][    C2]  ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[  132.487051][    C2]  __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[  132.487053][    C2]  ? __ia32_sys_getpeername (net/socket.c:2219)
[  132.487055][    C2]  ? __pmd_alloc (./include/linux/mm.h:1682)
[  132.487059][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[  132.487061][    C2]  __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[  132.487063][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  132.487066][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  132.487068][    C2]  ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89)
[  132.487069][    C2]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  132.487071][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  132.487073][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  132.487074][    C2]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  132.487076][    C2] RIP: 0033:0x7f7c437a508e
[  132.487079][    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
[  132.487081][    C2] RSP: 002b:00007fff6b793040 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[  132.487084][    C2] RAX: ffffffffffffffda RBX: 0000000006ad0e40 RCX: 00007f7c437a508e
[  132.487085][    C2] RDX: 0000000000000046 RSI: 0000000000416940 RDI: 0000000000000005
[  132.487087][    C2] RBP: 00007fff6b793050 R08: 0000000000000000 R09: 0000000000000000
[  132.487088][    C2] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff6b793c08


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