======================================
| [  657.417877] br0: port 2(veth2) entered forwarding state
| [  772.155171] ------------[ cut here ]------------
| [  772.155257] WARNING: CPU: 2 PID: 2294 at net/bridge/br_multicast.c:1388 __br_multicast_stop (net/bridge/br_multicast.c:1388 net/bridge/br_multicast.c:1386 net/bridge/br_multicast.c:1398 net/bridge/br_multicast.c:4458) bridge 
| [  772.155401] Modules linked in: dummy sch_prio macvlan ip_gre gre 8021q act_pedit act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_police act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
[  772.155666] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  772.155724] RIP: 0010:__br_multicast_stop (net/bridge/br_multicast.c:1388 net/bridge/br_multicast.c:1386 net/bridge/br_multicast.c:1398 net/bridge/br_multicast.c:4458) bridge 
[ 772.155788] Code: 89 df e8 f3 fd ff ff 80 bb 2c 01 00 00 00 75 19 80 bb 0c 02 00 00 00 75 1d 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 b1 d2 2b e5 90 <0f> 0b 90 80 bb 0c 02 00 00 00 74 e3 90 0f 0b 90 48 8b 3b 5b 48 81
All code
========
   0:	89 df                	mov    %ebx,%edi
   2:	e8 f3 fd ff ff       	call   0xfffffffffffffdfa
   7:	80 bb 2c 01 00 00 00 	cmpb   $0x0,0x12c(%rbx)
   e:	75 19                	jne    0x29
  10:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  17:	75 1d                	jne    0x36
  19:	48 8b 3b             	mov    (%rbx),%rdi
  1c:	5b                   	pop    %rbx
  1d:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  24:	e9 b1 d2 2b e5       	jmp    0xffffffffe52bd2da
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  34:	74 e3                	je     0x19
  36:	90                   	nop
  37:	0f 0b                	ud2
  39:	90                   	nop
  3a:	48 8b 3b             	mov    (%rbx),%rdi
  3d:	5b                   	pop    %rbx
  3e:	48                   	rex.W
  3f:	81                   	.byte 0x81

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
   a:	74 e3                	je     0xffffffffffffffef
   c:	90                   	nop
   d:	0f 0b                	ud2
   f:	90                   	nop
  10:	48 8b 3b             	mov    (%rbx),%rdi
  13:	5b                   	pop    %rbx
  14:	48                   	rex.W
  15:	81                   	.byte 0x81
[  772.155916] RSP: 0018:ffffb911c3a13888 EFLAGS: 00010202
[  772.155965] RAX: 0000000000000001 RBX: ffff9d818a255af0 RCX: 0000000000000001
[  772.156030] RDX: ffff9d818a255c50 RSI: 0000000000000001 RDI: ffff9d818a2559c0
[  772.156135] RBP: ffff9d818a2559c0 R08: ffffffffa68f0180 R09: ffffb911c3a13b40
[  772.156217] R10: ffff9d8184f31a50 R11: ffff9d818a255000 R12: ffff9d818a2559c0
[  772.156282] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000001
[  772.156349] FS:  00007f53b1052800(0000) GS:ffff9d82184e7000(0000) knlGS:0000000000000000
[  772.156413] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  772.156474] CR2: 0000000000447b60 CR3: 000000000b289004 CR4: 0000000000772ef0
[  772.156539] PKRU: 55555554
[  772.156572] Call Trace:
[  772.156612]  <TASK>
[  772.156652] br_multicast_toggle_vlan_snooping (net/bridge/br_multicast.c:4585) bridge 
[  772.156727] br_boolopt_multi_toggle (net/bridge/br.c:331) bridge 
[  772.156781] br_changelink (net/bridge/br_netlink.c:1545) bridge 
[  772.156835] ? ns_capable (./include/linux/security.h:694 kernel/capability.c:342 kernel/capability.c:363) 
[  772.156882] rtnl_newlink (net/core/rtnetlink.c:3721 net/core/rtnetlink.c:3920 net/core/rtnetlink.c:4057) 
[  772.156929] ? rtnl_setlink (net/core/rtnetlink.c:3948) 
[  772.156969] rtnetlink_rcv_msg (net/core/rtnetlink.c:6947) 
[  772.157018] ? update_load_avg (kernel/sched/fair.c:4734) 
[  772.157062] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6849) 
[  772.157111] netlink_rcv_skb (net/netlink/af_netlink.c:2552) 
[  772.157159] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[  772.157206] ? __alloc_skb (net/core/skbuff.c:686) 
[  772.157250] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[  772.157289] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[  772.157333] ? copy_msghdr_from_user (net/socket.c:2554) 
[  772.157386] ___sys_sendmsg (net/socket.c:2670) 
[  772.157442] ? __handle_mm_fault (mm/memory.c:5565 mm/memory.c:5707 mm/memory.c:4234 mm/memory.c:6052 mm/memory.c:6195) 
[  772.157501] __sys_sendmsg (net/socket.c:2700) 
[  772.157546] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[  772.157591] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  772.157640] RIP: 0033:0x7f53b121f1e7
[ 772.157681] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  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 2e 00 00 00       	mov    $0x2e,%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 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  772.157806] RSP: 002b:00007ffd6c61da58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  772.157871] RAX: ffffffffffffffda RBX: 00007ffd6c61e180 RCX: 00007f53b121f1e7
[  772.157934] RDX: 0000000000000000 RSI: 00007ffd6c61dac0 RDI: 0000000000000005
[  772.157997] RBP: 000000000000000c R08: 0000000000000068 R09: 0000000000000000
[  772.158067] R10: 00007f53b12adac0 R11: 0000000000000246 R12: 00007ffd6c61e1a0
[  772.158137] R13: 0000000068b1c7f3 R14: 0000000000499600 R15: 00007ffd6c61dba0
| [  772.158344] ------------[ cut here ]------------
| [  772.158397] WARNING: CPU: 2 PID: 2294 at net/bridge/br_multicast.c:1393 __br_multicast_stop (net/bridge/br_multicast.c:1393 net/bridge/br_multicast.c:1391 net/bridge/br_multicast.c:1399 net/bridge/br_multicast.c:4458) bridge 
| [  772.158501] Modules linked in: dummy sch_prio macvlan ip_gre gre 8021q act_pedit act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_police act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [  772.158760] Tainted: [W]=WARN
[  772.158802] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  772.158863] RIP: 0010:__br_multicast_stop (net/bridge/br_multicast.c:1393 net/bridge/br_multicast.c:1391 net/bridge/br_multicast.c:1399 net/bridge/br_multicast.c:4458) bridge 
[ 772.158934] Code: 00 75 19 80 bb 0c 02 00 00 00 75 1d 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 b1 d2 2b e5 90 0f 0b 90 80 bb 0c 02 00 00 00 74 e3 90 <0f> 0b 90 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 90 d2 2b e5 41 56 41
All code
========
   0:	00 75 19             	add    %dh,0x19(%rbp)
   3:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
   a:	75 1d                	jne    0x29
   c:	48 8b 3b             	mov    (%rbx),%rdi
   f:	5b                   	pop    %rbx
  10:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  17:	e9 b1 d2 2b e5       	jmp    0xffffffffe52bd2cd
  1c:	90                   	nop
  1d:	0f 0b                	ud2
  1f:	90                   	nop
  20:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  27:	74 e3                	je     0xc
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 8b 3b             	mov    (%rbx),%rdi
  30:	5b                   	pop    %rbx
  31:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  38:	e9 90 d2 2b e5       	jmp    0xffffffffe52bd2cd
  3d:	41 56                	push   %r14
  3f:	41                   	rex.B

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 8b 3b             	mov    (%rbx),%rdi
   6:	5b                   	pop    %rbx
   7:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
   e:	e9 90 d2 2b e5       	jmp    0xffffffffe52bd2a3
  13:	41 56                	push   %r14
  15:	41                   	rex.B
[  772.159071] RSP: 0018:ffffb911c3a13888 EFLAGS: 00010202
[  772.159118] RAX: 0000000000000001 RBX: ffff9d818a255af0 RCX: 0000000000000001
[  772.159192] RDX: ffff9d818a255c50 RSI: 0000000000000001 RDI: ffff9d818a2559c0
[  772.159255] RBP: ffff9d818a2559c0 R08: ffffffffa68f0180 R09: ffffb911c3a13b40
[  772.159318] R10: ffff9d8184f31a50 R11: ffff9d818a255000 R12: ffff9d818a2559c0
[  772.159382] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000001
[  772.159452] FS:  00007f53b1052800(0000) GS:ffff9d82184e7000(0000) knlGS:0000000000000000
[  772.159522] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  772.159586] CR2: 0000000000447b60 CR3: 000000000b289004 CR4: 0000000000772ef0
[  772.159655] PKRU: 55555554
[  772.159688] Call Trace:
[  772.159723]  <TASK>
[  772.159754] br_multicast_toggle_vlan_snooping (net/bridge/br_multicast.c:4585) bridge 
[  772.159817] br_boolopt_multi_toggle (net/bridge/br.c:331) bridge 
[  772.159873] br_changelink (net/bridge/br_netlink.c:1545) bridge 
[  772.159927] ? ns_capable (./include/linux/security.h:694 kernel/capability.c:342 kernel/capability.c:363) 
[  772.159973] rtnl_newlink (net/core/rtnetlink.c:3721 net/core/rtnetlink.c:3920 net/core/rtnetlink.c:4057) 
[  772.160027] ? rtnl_setlink (net/core/rtnetlink.c:3948) 
[  772.160078] rtnetlink_rcv_msg (net/core/rtnetlink.c:6947) 
[  772.160130] ? update_load_avg (kernel/sched/fair.c:4734) 
[  772.160185] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6849) 
[  772.160247] netlink_rcv_skb (net/netlink/af_netlink.c:2552) 
[  772.160299] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[  772.160349] ? __alloc_skb (net/core/skbuff.c:686) 
[  772.160403] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[  772.160460] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[  772.160513] ? copy_msghdr_from_user (net/socket.c:2554) 
[  772.160564] ___sys_sendmsg (net/socket.c:2670) 
[  772.160629] ? __handle_mm_fault (mm/memory.c:5565 mm/memory.c:5707 mm/memory.c:4234 mm/memory.c:6052 mm/memory.c:6195) 
[  772.160702] __sys_sendmsg (net/socket.c:2700) 
[  772.160764] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[  772.160821] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  772.160888] RIP: 0033:0x7f53b121f1e7
[ 772.160943] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  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 2e 00 00 00       	mov    $0x2e,%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 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  772.161117] RSP: 002b:00007ffd6c61da58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  772.161205] RAX: ffffffffffffffda RBX: 00007ffd6c61e180 RCX: 00007f53b121f1e7
[  772.161291] RDX: 0000000000000000 RSI: 00007ffd6c61dac0 RDI: 0000000000000005
[  772.161375] RBP: 000000000000000c R08: 0000000000000068 R09: 0000000000000000
[  772.161462] R10: 00007f53b12adac0 R11: 0000000000000246 R12: 00007ffd6c61e1a0
[  772.161547] R13: 0000000068b1c7f3 R14: 0000000000499600 R15: 00007ffd6c61dba0
| [  782.277580] ------------[ cut here ]------------
| [  782.277656] WARNING: CPU: 0 PID: 2318 at net/bridge/br_multicast.c:1388 __br_multicast_stop (net/bridge/br_multicast.c:1388 net/bridge/br_multicast.c:1386 net/bridge/br_multicast.c:1398 net/bridge/br_multicast.c:4458) bridge 
| [  782.277764] Modules linked in: dummy sch_prio macvlan ip_gre gre 8021q act_pedit act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_police act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [  782.278068] Tainted: [W]=WARN
[  782.278102] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  782.278160] RIP: 0010:__br_multicast_stop (net/bridge/br_multicast.c:1388 net/bridge/br_multicast.c:1386 net/bridge/br_multicast.c:1398 net/bridge/br_multicast.c:4458) bridge 
[ 782.278233] Code: 89 df e8 f3 fd ff ff 80 bb 2c 01 00 00 00 75 19 80 bb 0c 02 00 00 00 75 1d 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 b1 d2 2b e5 90 <0f> 0b 90 80 bb 0c 02 00 00 00 74 e3 90 0f 0b 90 48 8b 3b 5b 48 81
All code
========
   0:	89 df                	mov    %ebx,%edi
   2:	e8 f3 fd ff ff       	call   0xfffffffffffffdfa
   7:	80 bb 2c 01 00 00 00 	cmpb   $0x0,0x12c(%rbx)
   e:	75 19                	jne    0x29
  10:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  17:	75 1d                	jne    0x36
  19:	48 8b 3b             	mov    (%rbx),%rdi
  1c:	5b                   	pop    %rbx
  1d:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  24:	e9 b1 d2 2b e5       	jmp    0xffffffffe52bd2da
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  34:	74 e3                	je     0x19
  36:	90                   	nop
  37:	0f 0b                	ud2
  39:	90                   	nop
  3a:	48 8b 3b             	mov    (%rbx),%rdi
  3d:	5b                   	pop    %rbx
  3e:	48                   	rex.W
  3f:	81                   	.byte 0x81

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
   a:	74 e3                	je     0xffffffffffffffef
   c:	90                   	nop
   d:	0f 0b                	ud2
   f:	90                   	nop
  10:	48 8b 3b             	mov    (%rbx),%rdi
  13:	5b                   	pop    %rbx
  14:	48                   	rex.W
  15:	81                   	.byte 0x81
[  782.278395] RSP: 0018:ffffb911c3a4b888 EFLAGS: 00010202
[  782.278446] RAX: 0000000000000001 RBX: ffff9d818a255af0 RCX: 0000000000000001
[  782.278514] RDX: ffff9d818a255c50 RSI: 0000000000000001 RDI: ffff9d818a2559c0
[  782.278578] RBP: ffff9d818a2559c0 R08: ffffffffa68f0180 R09: ffffb911c3a4bb40
[  782.278641] R10: ffff9d818a935250 R11: ffff9d818a255000 R12: ffff9d818a2559c0
[  782.278699] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000001
[  782.278760] FS:  00007fc673298800(0000) GS:ffff9d82183e7000(0000) knlGS:0000000000000000
[  782.278831] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  782.278899] CR2: 0000000000447b60 CR3: 0000000001b05003 CR4: 0000000000772ef0
[  782.278967] PKRU: 55555554
[  782.278990] Call Trace:
[  782.279018]  <TASK>
[  782.279048] br_multicast_toggle_vlan_snooping (net/bridge/br_multicast.c:4585) bridge 
[  782.279118] br_boolopt_multi_toggle (net/bridge/br.c:331) bridge 
[  782.279187] br_changelink (net/bridge/br_netlink.c:1545) bridge 
[  782.279260] ? ns_capable (./include/linux/security.h:694 kernel/capability.c:342 kernel/capability.c:363) 
[  782.279316] rtnl_newlink (net/core/rtnetlink.c:3721 net/core/rtnetlink.c:3920 net/core/rtnetlink.c:4057) 
[  782.279370] ? rtnl_setlink (net/core/rtnetlink.c:3948) 
[  782.279415] rtnetlink_rcv_msg (net/core/rtnetlink.c:6947) 
[  782.279472] ? update_load_avg (kernel/sched/fair.c:4734) 
[  782.279514] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6849) 
[  782.279559] netlink_rcv_skb (net/netlink/af_netlink.c:2552) 
[  782.279599] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[  782.279632] ? __alloc_skb (net/core/skbuff.c:686) 
[  782.279673] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[  782.279707] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[  782.279748] ? copy_msghdr_from_user (net/socket.c:2554) 
[  782.279794] ___sys_sendmsg (net/socket.c:2670) 
[  782.279831] ? __handle_mm_fault (mm/memory.c:5565 mm/memory.c:5707 mm/memory.c:4234 mm/memory.c:6052 mm/memory.c:6195) 
[  782.279882] __sys_sendmsg (net/socket.c:2700) 
[  782.279927] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[  782.279968] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  782.280016] RIP: 0033:0x7fc6734651e7
[ 782.280053] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  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 2e 00 00 00       	mov    $0x2e,%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 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  782.280199] RSP: 002b:00007ffef25d6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  782.280265] RAX: ffffffffffffffda RBX: 00007ffef25d6a40 RCX: 00007fc6734651e7
[  782.280330] RDX: 0000000000000000 RSI: 00007ffef25d6380 RDI: 0000000000000005
[  782.280394] RBP: 000000000000000c R08: 0000000000000068 R09: 0000000000000000
[  782.280471] R10: 00007fc6734f3ac0 R11: 0000000000000246 R12: 00007ffef25d6a60
[  782.280535] R13: 0000000068b1c7fd R14: 0000000000499600 R15: 00007ffef25d6460
| [  782.280699] ------------[ cut here ]------------
| [  782.280746] WARNING: CPU: 0 PID: 2318 at net/bridge/br_multicast.c:1393 __br_multicast_stop (net/bridge/br_multicast.c:1393 net/bridge/br_multicast.c:1391 net/bridge/br_multicast.c:1399 net/bridge/br_multicast.c:4458) bridge 
| [  782.280843] Modules linked in: dummy sch_prio macvlan ip_gre gre 8021q act_pedit act_vlan act_skbedit act_ct nf_flow_table nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 cls_matchall act_mirred act_police act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
| [  782.281142] Tainted: [W]=WARN
[  782.281181] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  782.281235] RIP: 0010:__br_multicast_stop (net/bridge/br_multicast.c:1393 net/bridge/br_multicast.c:1391 net/bridge/br_multicast.c:1399 net/bridge/br_multicast.c:4458) bridge 
[ 782.281302] Code: 00 75 19 80 bb 0c 02 00 00 00 75 1d 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 b1 d2 2b e5 90 0f 0b 90 80 bb 0c 02 00 00 00 74 e3 90 <0f> 0b 90 48 8b 3b 5b 48 81 c7 4c 03 00 00 e9 90 d2 2b e5 41 56 41
All code
========
   0:	00 75 19             	add    %dh,0x19(%rbp)
   3:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
   a:	75 1d                	jne    0x29
   c:	48 8b 3b             	mov    (%rbx),%rdi
   f:	5b                   	pop    %rbx
  10:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  17:	e9 b1 d2 2b e5       	jmp    0xffffffffe52bd2cd
  1c:	90                   	nop
  1d:	0f 0b                	ud2
  1f:	90                   	nop
  20:	80 bb 0c 02 00 00 00 	cmpb   $0x0,0x20c(%rbx)
  27:	74 e3                	je     0xc
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 8b 3b             	mov    (%rbx),%rdi
  30:	5b                   	pop    %rbx
  31:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
  38:	e9 90 d2 2b e5       	jmp    0xffffffffe52bd2cd
  3d:	41 56                	push   %r14
  3f:	41                   	rex.B

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 8b 3b             	mov    (%rbx),%rdi
   6:	5b                   	pop    %rbx
   7:	48 81 c7 4c 03 00 00 	add    $0x34c,%rdi
   e:	e9 90 d2 2b e5       	jmp    0xffffffffe52bd2a3
  13:	41 56                	push   %r14
  15:	41                   	rex.B
[  782.281450] RSP: 0018:ffffb911c3a4b888 EFLAGS: 00010202
[  782.281498] RAX: 0000000000000001 RBX: ffff9d818a255af0 RCX: 0000000000000001
[  782.281561] RDX: ffff9d818a255c50 RSI: 0000000000000001 RDI: ffff9d818a2559c0
[  782.281626] RBP: ffff9d818a2559c0 R08: ffffffffa68f0180 R09: ffffb911c3a4bb40
[  782.281687] R10: ffff9d818a935250 R11: ffff9d818a255000 R12: ffff9d818a2559c0
[  782.281750] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000001
[  782.281816] FS:  00007fc673298800(0000) GS:ffff9d82183e7000(0000) knlGS:0000000000000000
[  782.281887] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  782.281952] CR2: 0000000000447b60 CR3: 0000000001b05003 CR4: 0000000000772ef0
[  782.282016] PKRU: 55555554
[  782.282041] Call Trace:
[  782.282067]  <TASK>
[  782.282091] br_multicast_toggle_vlan_snooping (net/bridge/br_multicast.c:4585) bridge 
[  782.282169] br_boolopt_multi_toggle (net/bridge/br.c:331) bridge 
[  782.282225] br_changelink (net/bridge/br_netlink.c:1545) bridge 
[  782.282281] ? ns_capable (./include/linux/security.h:694 kernel/capability.c:342 kernel/capability.c:363) 
[  782.282323] rtnl_newlink (net/core/rtnetlink.c:3721 net/core/rtnetlink.c:3920 net/core/rtnetlink.c:4057) 
[  782.282366] ? rtnl_setlink (net/core/rtnetlink.c:3948) 
[  782.282404] rtnetlink_rcv_msg (net/core/rtnetlink.c:6947) 
[  782.282446] ? update_load_avg (kernel/sched/fair.c:4734) 
[  782.282487] ? rtnl_calcit.isra.0 (net/core/rtnetlink.c:6849) 
[  782.282532] netlink_rcv_skb (net/netlink/af_netlink.c:2552) 
[  782.282570] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[  782.282602] ? __alloc_skb (net/core/skbuff.c:686) 
[  782.282643] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[  782.282679] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[  782.282721] ? copy_msghdr_from_user (net/socket.c:2554) 
[  782.282772] ___sys_sendmsg (net/socket.c:2670) 
[  782.282807] ? __handle_mm_fault (mm/memory.c:5565 mm/memory.c:5707 mm/memory.c:4234 mm/memory.c:6052 mm/memory.c:6195) 
[  782.282858] __sys_sendmsg (net/socket.c:2700) 
[  782.282895] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[  782.282932] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  782.282977] RIP: 0033:0x7fc6734651e7
[ 782.283012] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  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 2e 00 00 00       	mov    $0x2e,%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 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  782.283153] RSP: 002b:00007ffef25d6318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  782.283232] RAX: ffffffffffffffda RBX: 00007ffef25d6a40 RCX: 00007fc6734651e7
[  782.283296] RDX: 0000000000000000 RSI: 00007ffef25d6380 RDI: 0000000000000005
[  782.283359] RBP: 000000000000000c R08: 0000000000000068 R09: 0000000000000000
[  782.283432] R10: 00007fc6734f3ac0 R11: 0000000000000246 R12: 00007ffef25d6a60


Finger prints:
__br_multicast_stop:br_multicast_toggle_vlan_snooping:br_boolopt_multi_toggle:br_changelink:rtnl_newlink