======================================
| [ 1644.402887][T17437] br2: port 1(vethhv-21) entered forwarding state
| [ 1644.463945][    C1] ------------[ cut here ]------------
| [ 1644.464233][    C1] WARNING: ./include/linux/skbuff.h:3239 at __udp4_lib_err_encap+0x69a/0xad0, CPU#1: 1/55
| [ 1644.464662][    C1] Modules linked in: act_gact cls_matchall sch_ingress openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh ip6t_rpfilter nft_compat nf_tables vxlan mpls_gso mpls_iptunnel mpls_router
[ 1644.465603][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1644.465777][    C1] Workqueue: mld mld_ifc_work
[ 1644.465976][    C1] RIP: 0010:__udp4_lib_err_encap (./include/linux/skbuff.h:3239 (discriminator 3) ./include/linux/skbuff.h:3235 (discriminator 3) net/ipv4/udp.c:864 (discriminator 3))
[ 1644.466159][    C1] Code: 84 02 00 00 0f b6 2e 83 e5 0f 90 0f 0b 90 e9 ef fa ff ff 90 0f 0b 90 90 0f 0b 90 e9 bd fc ff ff 90 0f 0b 90 e9 57 fa ff ff 90 <0f> 0b 90 e9 65 fa ff ff 4c 8b 74 24 20 4c 8b 6c 24 28 4d 89 fa 45
All code
========
   0:	84 02                	test   %al,(%rdx)
   2:	00 00                	add    %al,(%rax)
   4:	0f b6 2e             	movzbl (%rsi),%ebp
   7:	83 e5 0f             	and    $0xf,%ebp
   a:	90                   	nop
   b:	0f 0b                	ud2
   d:	90                   	nop
   e:	e9 ef fa ff ff       	jmp    0xfffffffffffffb02
  13:	90                   	nop
  14:	0f 0b                	ud2
  16:	90                   	nop
  17:	90                   	nop
  18:	0f 0b                	ud2
  1a:	90                   	nop
  1b:	e9 bd fc ff ff       	jmp    0xfffffffffffffcdd
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 57 fa ff ff       	jmp    0xfffffffffffffa80
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 65 fa ff ff       	jmp    0xfffffffffffffa97
  32:	4c 8b 74 24 20       	mov    0x20(%rsp),%r14
  37:	4c 8b 6c 24 28       	mov    0x28(%rsp),%r13
  3c:	4d 89 fa             	mov    %r15,%r10
  3f:	45                   	rex.RB

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 65 fa ff ff       	jmp    0xfffffffffffffa6d
   8:	4c 8b 74 24 20       	mov    0x20(%rsp),%r14
   d:	4c 8b 6c 24 28       	mov    0x28(%rsp),%r13
  12:	4d 89 fa             	mov    %r15,%r10
  15:	45                   	rex.RB
[ 1644.466654][    C1] RSP: 0018:ffa00000001d0868 EFLAGS: 00010293
[ 1644.466831][    C1] RAX: ff1100000c291fe4 RBX: ff1100000c051000 RCX: 0000000000000000
[ 1644.467055][    C1] RDX: ff1100000c292000 RSI: ff1100000c291fec RDI: fffffffffffffff8
[ 1644.467259][    C1] RBP: ff1100000c291fc0 R08: ff1100000c291fec R09: 0000000000000000
[ 1644.467472][    C1] R10: ff1100000c0510b8 R11: 0000000000000001 R12: 0000000000000000
[ 1644.467678][    C1] R13: ff1100000c0510c8 R14: ff1100000c0510b6 R15: ff110000194c9f40
[ 1644.467890][    C1] FS:  0000000000000000(0000) GS:ff110000c7754000(0000) knlGS:0000000000000000
[ 1644.468139][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1644.468315][    C1] CR2: 00007fbf20356888 CR3: 000000005714e001 CR4: 0000000000771ef0
[ 1644.468523][    C1] PKRU: 55555554
[ 1644.468627][    C1] Call Trace:
[ 1644.468730][    C1]  <IRQ>
[ 1644.468804][    C1]  udp_err (net/ipv4/udp.c:933)
[ 1644.468918][    C1]  icmp_unreach (net/ipv4/icmp.c:1196)
[ 1644.469052][    C1]  ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2112 net/core/skbuff.c:3785)
[ 1644.469190][    C1]  icmp_rcv (net/ipv4/icmp.c:1525 (discriminator 1))
[ 1644.469294][    C1]  ip_protocol_deliver_rcu (net/ipv4/ip_input.c:209)
[ 1644.469441][    C1]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[ 1644.469579][    C1]  ip_local_deliver_finish (./include/linux/rcupdate.h:867 net/ipv4/ip_input.c:242)
[ 1644.469716][    C1]  ip_local_deliver (net/ipv4/ip_input.c:259)
[ 1644.469852][    C1]  ? ip_local_deliver_finish (net/ipv4/ip_input.c:251)
[ 1644.469995][    C1]  ? ip_rcv_finish_core (net/ipv4/ip_input.c:409 (discriminator 1))
[ 1644.470130][    C1]  ? do_xdp_generic (net/core/dev.c:5979)
[ 1644.470268][    C1]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[ 1644.470408][    C1]  ip_rcv (./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv4/ip_input.c:612)
[ 1644.470512][    C1]  ? ip_local_deliver (net/ipv4/ip_input.c:605)
[ 1644.470649][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 3) kernel/locking/lockdep.c:3821 (discriminator 3) kernel/locking/lockdep.c:3876 (discriminator 3))
[ 1644.470788][    C1]  ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2375 (discriminator 2))
[ 1644.470929][    C1]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[ 1644.471064][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1644.471199][    C1]  ? netif_close_many (./include/linux/list.h:127 ./include/linux/list.h:223 ./include/linux/list.h:295 net/core/dev.c:1799)
[ 1644.471341][    C1]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[ 1644.471508][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.471648][    C1]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[ 1644.471817][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.471961][    C1]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[ 1644.472098][    C1]  __napi_poll (net/core/dev.c:7737)
[ 1644.472200][    C1]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[ 1644.472343][    C1]  ? __napi_poll (net/core/dev.c:7919)
[ 1644.472481][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.472616][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1644.472760][    C1]  ? __run_timers (kernel/time/timer.c:2402)
[ 1644.472909][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.473045][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1644.473183][    C1]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[ 1644.473322][    C1]  ? _local_bh_enable (kernel/softirq.c:580)
[ 1644.473459][    C1]  ? _local_bh_enable (kernel/softirq.c:580)
[ 1644.473599][    C1]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[ 1644.473702][    C1]  </IRQ>
[ 1644.473771][    C1]  <TASK>
[ 1644.473839][    C1]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4905 (discriminator 2))
[ 1644.473979][    C1]  __local_bh_enable_ip (kernel/softirq.c:450)
[ 1644.474116][    C1]  __dev_queue_xmit (net/core/dev.c:4906)
[ 1644.474252][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1644.474393][    C1]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[ 1644.474531][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[ 1644.474668][    C1]  ? eth_header (net/ethernet/eth.c:100)
[ 1644.474804][    C1]  ? neigh_connected_output (./include/linux/netdevice.h:3458 net/core/neighbour.c:1643)
[ 1644.474947][    C1]  ip6_finish_output2 (net/ipv6/ip6_output.c:61)
[ 1644.475088][    C1]  ? ip6_xmit (net/ipv6/ip6_output.c:61)
[ 1644.475224][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.475365][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.475502][    C1]  ? 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:3281 (discriminator 2))
[ 1644.475608][    C1]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[ 1644.475748][    C1]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[ 1644.475851][    C1]  ? ip6_finish_output (net/ipv6/ip6_output.c:227)
[ 1644.475990][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.476123][    C1]  ? xfrm_bundle_lookup.constprop.0 (net/xfrm/xfrm_policy.c:3177)
[ 1644.476292][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1644.476431][    C1]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[ 1644.476566][    C1]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[ 1644.476701][    C1]  ? icmp6_dst_alloc (net/ipv6/route.c:3357 (discriminator 1))
[ 1644.476836][    C1]  mld_sendpack (./include/linux/netfilter.h:319 ./include/linux/netfilter.h:312 net/ipv6/mcast.c:1855)
[ 1644.476978][    C1]  ? nf_hook.constprop.0 (net/ipv4/ip_forward.c:66)
[ 1644.477116][    C1]  ? mld_send_cr (net/ipv6/mcast.c:2131 (discriminator 14))
[ 1644.477253][    C1]  mld_ifc_work (net/ipv6/mcast.c:2695)
[ 1644.477393][    C1]  ? process_one_work (kernel/workqueue.c:3264 (discriminator 2))
[ 1644.477529][    C1]  process_one_work (kernel/workqueue.c:3293)
[ 1644.477667][    C1]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:3189)
[ 1644.477800][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.477944][    C1]  worker_thread (kernel/workqueue.c:3365 (discriminator 5) kernel/workqueue.c:3452 (discriminator 5))
[ 1644.478079][    C1]  ? rescuer_thread (kernel/workqueue.c:3398)
[ 1644.478213][    C1]  ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:272 (discriminator 1))
[ 1644.478353][    C1]  ? rescuer_thread (kernel/workqueue.c:3398)
[ 1644.478489][    C1]  kthread (kernel/kthread.c:436)
[ 1644.478591][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[ 1644.478759][    C1]  ? kthread_affine_node (kernel/kthread.c:381)
[ 1644.478900][    C1]  ret_from_fork (arch/x86/kernel/process.c:164)
[ 1644.479037][    C1]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1644.479207][    C1]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 (discriminator 1) arch/x86/kernel/process_64.c:377 (discriminator 1) arch/x86/kernel/process_64.c:665 (discriminator 1))
[ 1644.479347][    C1]  ? kthread_affine_node (kernel/kthread.c:381)
[ 1644.479484][    C1]  ret_from_fork_asm (arch/x86/entry/entry_64.S:255)
| [ 1644.945211][    C2] ------------[ cut here ]------------
| [ 1644.945419][    C2] WARNING: ./include/linux/skbuff.h:3239 at __udp6_lib_err_encap+0x600/0x930, CPU#2: 0/12
| [ 1644.945758][    C2] Modules linked in: act_gact cls_matchall sch_ingress openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh ip6t_rpfilter nft_compat nf_tables vxlan mpls_gso mpls_iptunnel mpls_router
| [ 1644.946693][    C2] Tainted: [W]=WARN
[ 1644.946847][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1644.947078][    C2] Workqueue: ipv6_addrconf addrconf_dad_work
[ 1644.947314][    C2] RIP: 0010:__udp6_lib_err_encap (./include/linux/skbuff.h:3239 (discriminator 3) ./include/linux/skbuff.h:3235 (discriminator 3) net/ipv6/udp.c:652 (discriminator 3))
[ 1644.947538][    C2] Code: 08 84 d2 0f 85 4f 02 00 00 44 8b 4b 28 e9 a9 fe ff ff 4c 8b 6c 24 20 4c 8b 7c 24 28 45 31 e4 4c 8b 74 24 30 e9 ce fd ff ff 90 <0f> 0b 90 48 29 c5 48 89 e8 48 81 fd ff ff 00 00 0f 86 09 fb ff ff
All code
========
   0:	08 84 d2 0f 85 4f 02 	or     %al,0x24f850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	44 8b 4b 28          	mov    0x28(%rbx),%r9d
   d:	e9 a9 fe ff ff       	jmp    0xfffffffffffffebb
  12:	4c 8b 6c 24 20       	mov    0x20(%rsp),%r13
  17:	4c 8b 7c 24 28       	mov    0x28(%rsp),%r15
  1c:	45 31 e4             	xor    %r12d,%r12d
  1f:	4c 8b 74 24 30       	mov    0x30(%rsp),%r14
  24:	e9 ce fd ff ff       	jmp    0xfffffffffffffdf7
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 29 c5             	sub    %rax,%rbp
  30:	48 89 e8             	mov    %rbp,%rax
  33:	48 81 fd ff ff 00 00 	cmp    $0xffff,%rbp
  3a:	0f 86 09 fb ff ff    	jbe    0xfffffffffffffb49

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 29 c5             	sub    %rax,%rbp
   6:	48 89 e8             	mov    %rbp,%rax
   9:	48 81 fd ff ff 00 00 	cmp    $0xffff,%rbp
  10:	0f 86 09 fb ff ff    	jbe    0xfffffffffffffb1f
[ 1644.948087][    C2] RSP: 0018:ffa00000002286a8 EFLAGS: 00010293
[ 1644.948305][    C2] RAX: ff1100001a5903c0 RBX: ff1100000c3afc40 RCX: ff1100001a590430
[ 1644.948570][    C2] RDX: ff1100001a590400 RSI: ff1100001a590408 RDI: fffffffffffffff8
[ 1644.948819][    C2] RBP: ff1100001a590408 R08: 1fe2200001875fa2 R09: ff1100000c3afc40
[ 1644.949082][    C2] R10: ff110000194c9f40 R11: 0000000000000004 R12: 0000000000000000
[ 1644.949338][    C2] R13: ff1100000c3afcf6 R14: ff1100000c3afd08 R15: ff1100000c3afcf8
[ 1644.949617][    C2] FS:  0000000000000000(0000) GS:ff110000c77d4000(0000) knlGS:0000000000000000
[ 1644.949914][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1644.950132][    C2] CR2: 00005647ab782f98 CR3: 000000005714e006 CR4: 0000000000771ef0
[ 1644.950391][    C2] PKRU: 55555554
[ 1644.950537][    C2] Call Trace:
[ 1644.950687][    C2]  <IRQ>
[ 1644.950804][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.951006][    C2]  udpv6_err (net/ipv6/udp.c:714)
[ 1644.951160][    C2]  ? __udp6_lib_err_encap (net/ipv6/udp.c:695)
[ 1644.951351][    C2]  icmpv6_notify (net/ipv6/icmp.c:1087)
[ 1644.951536][    C2]  ? icmpv6_param_prob_reason (net/ipv6/icmp.c:1039)
[ 1644.951721][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.951914][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.952097][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.952281][    C2]  icmpv6_rcv (net/ipv6/icmp.c:1230)
[ 1644.952475][    C2]  ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:480)
[ 1644.952662][    C2]  ip6_input_finish (net/ipv6/ip6_input.c:532)
[ 1644.952885][    C2]  ip6_input (./include/linux/rcupdate.h:867 net/ipv6/ip6_input.c:543)
[ 1644.953040][    C2]  ? ip6_input_finish (net/ipv6/ip6_input.c:536)
[ 1644.953224][    C2]  ? ip6_rcv_core (./include/linux/skbuff.h:3395 net/ipv6/ip6_input.c:332)
[ 1644.953415][    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))
[ 1644.953564][    C2]  ? ip6_rcv_core (net/ipv6/ip6_input.c:345)
[ 1644.953743][    C2]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 3) kernel/locking/lockdep.c:3821 (discriminator 3) kernel/locking/lockdep.c:3876 (discriminator 3))
[ 1644.953936][    C2]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 3) kernel/locking/lockdep.c:3821 (discriminator 3) kernel/locking/lockdep.c:3876 (discriminator 3))
[ 1644.954118][    C2]  ? mark_usage (kernel/locking/lockdep.c:4674 (discriminator 1))
[ 1644.954304][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1644.954496][    C2]  ? down_read_killable_nested (kernel/locking/rwsem.c:1298 (discriminator 1) kernel/locking/rwsem.c:1314 (discriminator 1) kernel/locking/rwsem.c:1714 (discriminator 1))
[ 1644.954712][    C2]  ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6671 (discriminator 2))
[ 1644.954906][    C2]  __netif_receive_skb_one_core (net/core/dev.c:6202)
[ 1644.955120][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.955301][    C2]  ? __netif_receive_skb_list_core (net/core/dev.c:6202)
[ 1644.955523][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.955713][    C2]  process_backlog (./include/linux/rcupdate.h:867 net/core/dev.c:6674)
[ 1644.955910][    C2]  __napi_poll (net/core/dev.c:7737)
[ 1644.956059][    C2]  net_rx_action (net/core/dev.c:7800 net/core/dev.c:7957)
[ 1644.956243][    C2]  ? __napi_poll (net/core/dev.c:7919)
[ 1644.956432][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.956626][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1644.956811][    C2]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[ 1644.957008][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.957194][    C2]  ? _local_bh_enable (kernel/softirq.c:580)
[ 1644.957382][    C2]  ? trace_csd_function_exit (./include/trace/events/csd.h:64 (discriminator 24))
[ 1644.957565][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.957750][    C2]  do_softirq (kernel/softirq.c:523 (discriminator 19) kernel/softirq.c:510 (discriminator 19))
[ 1644.957913][    C2]  </IRQ>
[ 1644.958025][    C2]  <TASK>
[ 1644.958137][    C2]  ? __dev_queue_xmit (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:909 (discriminator 2) net/core/dev.c:4905 (discriminator 2))
[ 1644.958328][    C2]  __local_bh_enable_ip (kernel/softirq.c:450)
[ 1644.958544][    C2]  __dev_queue_xmit (net/core/dev.c:4906)
[ 1644.958728][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[ 1644.958925][    C2]  ? netdev_core_pick_tx (net/core/dev.c:4767)
[ 1644.959111][    C2]  ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[ 1644.959296][    C2]  ? eth_header (net/ethernet/eth.c:100)
[ 1644.959488][    C2]  ? neigh_connected_output (./include/linux/netdevice.h:3458 net/core/neighbour.c:1643)
[ 1644.959675][    C2]  ip6_finish_output2 (net/ipv6/ip6_output.c:61)
[ 1644.959865][    C2]  ? ip6_xmit (net/ipv6/ip6_output.c:61)
[ 1644.960060][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.960244][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.960434][    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:3281 (discriminator 2))
[ 1644.960587][    C2]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[ 1644.960784][    C2]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[ 1644.960949][    C2]  ? ip6_finish_output (net/ipv6/ip6_output.c:227)
[ 1644.961134][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.961322][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.961516][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1644.961698][    C2]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[ 1644.961896][    C2]  ndisc_send_skb (./include/net/dst.h:470 (discriminator 4) ./include/linux/netfilter.h:318 (discriminator 4) net/ipv6/ndisc.c:512 (discriminator 4))
[ 1644.962083][    C2]  ? ndisc_recv_na (net/ipv6/ndisc.c:470)
[ 1644.962267][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:106 (discriminator 9))
[ 1644.962459][    C2]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 (discriminator 2) ./include/asm-generic/bitops/instrumented-atomic.h:72 (discriminator 2) kernel/workqueue.c:2097 (discriminator 2))
[ 1644.962643][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1644.962830][    C2]  ndisc_send_ns (net/ipv6/ndisc.c:657)
[ 1644.963024][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1644.963208][    C2]  ? ndisc_parse_options (net/ipv6/ndisc.c:657)
[ 1644.963395][    C2]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1644.963578][    C2]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1644.963765][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473)
[ 1644.963958][    C2]  addrconf_dad_work (net/ipv6/addrconf.c:4294)
[ 1644.964142][    C2]  ? addrconf_dad_begin (net/ipv6/addrconf.c:4189)
[ 1644.964328][    C2]  ? process_one_work (kernel/workqueue.c:3264 (discriminator 2))
[ 1644.964511][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.964694][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.964887][    C2]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 24) kernel/locking/lockdep.c:5831 (discriminator 24))
[ 1644.965070][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 1644.965259][    C2]  process_one_work (kernel/workqueue.c:3293)
[ 1644.965451][    C2]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:3189)
[ 1644.965633][    C2]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:5870 (discriminator 2))
[ 1644.965831][    C2]  worker_thread (kernel/workqueue.c:3365 (discriminator 5) kernel/workqueue.c:3452 (discriminator 5))
[ 1644.966030][    C2]  ? rescuer_thread (kernel/workqueue.c:3398)
[ 1644.966214][    C2]  kthread (kernel/kthread.c:436)
[ 1644.966371][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 24))
[ 1644.966590][    C2]  ? kthread_affine_node (kernel/kthread.c:381)
[ 1644.966774][    C2]  ret_from_fork (arch/x86/kernel/process.c:164)
[ 1644.966974][    C2]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 1644.967192][    C2]  ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 (discriminator 1) arch/x86/kernel/process_64.c:377 (discriminator 1) arch/x86/kernel/process_64.c:665 (discriminator 1))
[ 1644.967383][    C2]  ? kthread_affine_node (kernel/kthread.c:381)


Finger prints:
__udp6_lib_err_encap:udpv6_err:icmpv6_notify:icmpv6_rcv:ip6_protocol_deliver_rcu
__udp4_lib_err_encap:udp_err:icmp_unreach:icmp_rcv:ip_protocol_deliver_rcu