======================================
| [  623.426840][ T7173] br0: port 2(veth02) entered disabled state
| [  624.313603][    C2] ------------[ cut here ]------------
| [ 624.314193][ C2] WARNING: CPU: 2 PID: 7179 at ./include/linux/skbuff.h:1164 ip_route_me_harder (./include/linux/skbuff.h:1164 ./include/linux/skbuff.h:1178 net/ipv4/netfilter.c:68) 
| [  624.314927][    C2] Modules linked in: ip_vs_rr ip_vs nft_flow_offload nf_flow_table_inet nf_flow_table xt_conntrack nft_compat tun nft_meta_bridge br_netfilter macvlan bridge stp llc nft_nat nft_chain_nat nf_nat sctp_diag nft_limit tcp_diag inet_diag nfnetlink_queue nft_queue veth sctp ip6_udp_tunnel udp_tunnel nf_conntrack_netlink nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_numgen nf_tables
[  624.317936][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 624.318887][ C2] RIP: 0010:ip_route_me_harder (./include/linux/skbuff.h:1164 ./include/linux/skbuff.h:1178 net/ipv4/netfilter.c:68) 
[ 624.319358][ C2] Code: 31 db e9 9a f7 ff ff 80 3c 02 00 0f 85 ee 05 00 00 49 8b 46 58 48 89 c3 48 83 e3 fe a8 01 0f 85 f5 02 00 00 48 85 db 74 04 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c
All code
========
   0:	31 db                	xor    %ebx,%ebx
   2:	e9 9a f7 ff ff       	jmp    0xfffffffffffff7a1
   7:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   b:	0f 85 ee 05 00 00    	jne    0x5ff
  11:	49 8b 46 58          	mov    0x58(%r14),%rax
  15:	48 89 c3             	mov    %rax,%rbx
  18:	48 83 e3 fe          	and    $0xfffffffffffffffe,%rbx
  1c:	a8 01                	test   $0x1,%al
  1e:	0f 85 f5 02 00 00    	jne    0x319
  24:	48 85 db             	test   %rbx,%rbx
  27:	74 04                	je     0x2d
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	4c 89 ea             	mov    %r13,%rdx
  3a:	48 c1 ea 03          	shr    $0x3,%rdx
  3e:	80                   	.byte 0x80
  3f:	3c                   	.byte 0x3c

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	4c 89 ea             	mov    %r13,%rdx
  10:	48 c1 ea 03          	shr    $0x3,%rdx
  14:	80                   	.byte 0x80
  15:	3c                   	.byte 0x3c
[  624.320617][    C2] RSP: 0018:ffffc90000218758 EFLAGS: 00010282
[  624.321073][    C2] RAX: ffff88800b492c40 RBX: ffff88800b492c40 RCX: 1ffff11001692588
[  624.321624][    C2] RDX: 1ffff110018aacbb RSI: 0000000000000000 RDI: ffff888012b090e0
[  624.322158][    C2] RBP: ffff88800e4bb740 R08: 1ffff920000430fd R09: 0000000000000000
[  624.322702][    C2] R10: ffff88800b493703 R11: dffffc0000000000 R12: 0000000000000000
[  624.323233][    C2] R13: ffff88800c5565d8 R14: ffff88800c556580 R15: ffff88800c556601
[  624.323783][    C2] FS:  00007fdd2870d740(0000) GS:ffff8880a01a4000(0000) knlGS:0000000000000000
[  624.324417][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  624.324881][    C2] CR2: 00007fdd2888a730 CR3: 0000000011c8e001 CR4: 0000000000772ef0
[  624.325412][    C2] PKRU: 55555554
[  624.325696][    C2] Call Trace:
[  624.325971][    C2]  <IRQ>
[ 624.326174][ C2] ? __pfx_ip_route_me_harder (net/ipv4/netfilter.c:22) 
[ 624.326555][ C2] ? __pfx_ip_vs_conn_out_get (net/netfilter/ipvs/ip_vs_conn.c:402) ip_vs 
[ 624.327024][ C2] ? __pfx_tcp_snat_handler (net/netfilter/ipvs/ip_vs_proto_tcp.c:149) ip_vs 
[ 624.327484][ C2] ? ip_vs_conn_out_get_proto (net/netfilter/ipvs/ip_vs_conn.c:455) ip_vs 
[ 624.327954][ C2] handle_response.isra.0 (net/netfilter/ipvs/ip_vs_core.c:737 net/netfilter/ipvs/ip_vs_core.c:720 net/netfilter/ipvs/ip_vs_core.c:1302) ip_vs 
[ 624.328420][ C2] ip_vs_out_hook (net/netfilter/ipvs/ip_vs_core.c:1404) ip_vs 
[ 624.328808][ C2] ? __pfx_ip_vs_out_hook (net/netfilter/ipvs/ip_vs_core.c:1330) ip_vs 
[ 624.329275][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 624.329656][ C2] ? __pfx_ip_vs_forward_icmp (net/netfilter/ipvs/ip_vs_core.c:2106) ip_vs 
[ 624.330109][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 624.330471][ C2] ? __pfx_ip_vs_out_hook (net/netfilter/ipvs/ip_vs_core.c:1330) ip_vs 
[ 624.330939][ C2] nf_hook_slow (./include/linux/netfilter.h:157 net/netfilter/core.c:623) 
[ 624.331304][ C2] nf_hook.constprop.0 (./include/linux/netfilter.h:171 ./include/linux/netfilter.h:269) 
[ 624.331679][ C2] ? __pfx_nf_hook.constprop.0 (./include/linux/netfilter.h:226) 
[ 624.332039][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 624.332400][ C2] ? __pfx_ip_forward_finish (net/ipv4/ip_forward.c:66) 
[ 624.332768][ C2] ? ip_dst_mtu_maybe_forward.constprop.0 (./include/linux/rcupdate.h:873 ./include/net/ip.h:501) 
[ 624.333216][ C2] ip_forward (./include/linux/netfilter.h:316 net/ipv4/ip_forward.c:162) 
[ 624.333589][ C2] ? __pfx_ip_rcv (net/ipv4/ip_input.c:567) 
[ 624.333955][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6442) 
[ 624.334322][ C2] __netif_receive_skb_one_core (net/core/dev.c:5979 (discriminator 4)) 
[ 624.334779][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5972) 
[ 624.335227][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 624.335594][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 624.335952][ C2] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6442) 
[ 624.336318][ C2] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6445) 
[ 624.336700][ C2] __napi_poll.constprop.0 (net/core/dev.c:7482) 
[ 624.337064][ C2] net_rx_action (net/core/dev.c:7546 net/core/dev.c:7673) 
[ 624.337438][ C2] ? __pfx_net_rx_action (net/core/dev.c:7635) 
[ 624.337804][ C2] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 624.338162][ C2] ? __lock_release (kernel/locking/lockdep.c:5515) 
[ 624.338530][ C2] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 624.338902][ C2] ? ktime_get (kernel/time/timekeeping.c:251 (discriminator 4) kernel/time/timekeeping.c:360 (discriminator 4) kernel/time/timekeeping.c:778 (discriminator 4)) 
[ 624.339180][ C2] ? clockevents_program_event (kernel/time/clockevents.c:336 (discriminator 3)) 
[ 624.339640][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 624.340009][ C2] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1240) 
[ 624.340372][ C2] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[  624.340653][    C2]  </IRQ>
[  624.340848][    C2]  <TASK>
[ 624.341036][ C2] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 624.341392][ C2] __neigh_event_send (net/core/neighbour.c:1241) 
[ 624.341772][ C2] neigh_resolve_output (net/core/neighbour.c:1545) 
[ 624.342135][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:412) 
[ 624.342503][ C2] ? ___neigh_create (net/core/neighbour.c:693) 
[ 624.342883][ C2] ip_finish_output2 (./include/net/neighbour.h:547 net/ipv4/ip_output.c:235) 
[ 624.343248][ C2] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/ip.h:501 ./include/net/ip.h:515) 
[ 624.343618][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 624.343993][ C2] ? __ip_finish_output (./include/linux/skbuff.h:1685 ./include/linux/skbuff.h:5079 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 624.344353][ C2] __ip_queue_xmit (./include/net/dst.h:461 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:527) 
[ 624.344723][ C2] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1566 (discriminator 4)) 
[ 624.345097][ C2] __tcp_transmit_skb (net/ipv4/tcp_output.c:1625 (discriminator 4)) 
[ 624.345470][ C2] ? __pfx___tcp_transmit_skb (net/ipv4/tcp_output.c:1446) 
[ 624.345852][ C2] tcp_connect (net/ipv4/tcp_output.c:1643 net/ipv4/tcp_output.c:4319) 
[ 624.346218][ C2] tcp_v4_connect (net/ipv4/tcp_ipv4.c:346) 
[ 624.346600][ C2] ? __pfx_tcp_v4_connect (net/ipv4/tcp_ipv4.c:224) 
[ 624.346959][ C2] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 624.347320][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 624.347701][ C2] __inet_stream_connect (net/ipv4/af_inet.c:677) 
[ 624.348058][ C2] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:412) 
[ 624.348423][ C2] ? __pfx_inet_stream_connect (net/ipv4/af_inet.c:744) 
[ 624.348784][ C2] inet_stream_connect (net/ipv4/af_inet.c:749) 
[ 624.349151][ C2] __sys_connect (net/socket.c:2086 net/socket.c:2105) 
[ 624.349513][ C2] ? __pfx___sys_connect (net/socket.c:2093) 
[ 624.349877][ C2] ? do_fcntl (fs/fcntl.c:473) 
[ 624.350160][ C2] ? __pfx_do_fcntl (fs/fcntl.c:448) 
[ 624.350521][ C2] ? fd_install (./arch/x86/include/asm/preempt.h:104 ./include/linux/rcupdate.h:955 fs/file.c:661) 
[ 624.350897][ C2] ? __sys_socket (net/socket.c:503 net/socket.c:1740) 
[ 624.351257][ C2] ? __pfx___sys_socket (net/socket.c:1727) 
[ 624.351634][ C2] __x64_sys_connect (net/socket.c:2108) 
[ 624.351992][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 624.352353][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 624.352729][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  624.353182][    C2] RIP: 0033:0x7fdd2886bd77
[ 624.353570][ C2] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 18 89 54 24 0c 48 89 34 24 89
All code
========
   0:	64 89 01             	mov    %eax,%fs:(%rcx)
   3:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
   7:	c3                   	ret
   8:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   f:	00 00 00 
  12:	90                   	nop
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2a 00 00 00       	mov    $0x2a,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 18          	sub    $0x18,%rsp
  37:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  3b:	48 89 34 24          	mov    %rsi,(%rsp)
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 18          	sub    $0x18,%rsp
   d:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  11:	48 89 34 24          	mov    %rsi,(%rsp)
  15:	89                   	.byte 0x89
[  624.354833][    C2] RSP: 002b:00007ffc86585058 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[  624.355370][    C2] RAX: ffffffffffffffda RBX: 00005564aae65cf0 RCX: 00007fdd2886bd77
[  624.355920][    C2] RDX: 0000000000000010 RSI: 00007ffc865859d0 RDI: 0000000000000007
[  624.356452][    C2] RBP: 00007ffc865859d0 R08: 00007ffc86585060 R09: 0000000000000010
[  624.356990][    C2] R10: 0000000000001f90 R11: 0000000000000246 R12: 0000000000000010


Finger prints:
ip_route_me_harder:ip_vs_out_hook:nf_hook_slow:ip_forward:__netif_receive_skb_one_core