======================================
| [   13.494466] ip6_tunnel: gt6 xmit: Local address not yet configured!
| [   17.142567] ------------[ cut here ]------------
| [   17.142695] kernel BUG at net/core/skbuff.c:3505!
| [   17.142757] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[   17.142873] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   17.142969] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 17.143028] Code: 89 5c 24 04 44 89 d9 44 89 ff 44 89 ea ff d0 0f 1f 00 44 8b 5c 24 04 41 89 c7 eb b6 ff d0 0f 1f 00 41 89 c1 e9 71 fd ff ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
All code
========
   0:	89 5c 24 04          	mov    %ebx,0x4(%rsp)
   4:	44 89 d9             	mov    %r11d,%ecx
   7:	44 89 ff             	mov    %r15d,%edi
   a:	44 89 ea             	mov    %r13d,%edx
   d:	ff d0                	call   *%rax
   f:	0f 1f 00             	nopl   (%rax)
  12:	44 8b 5c 24 04       	mov    0x4(%rsp),%r11d
  17:	41 89 c7             	mov    %eax,%r15d
  1a:	eb b6                	jmp    0xffffffffffffffd2
  1c:	ff d0                	call   *%rax
  1e:	0f 1f 00             	nopl   (%rax)
  21:	41 89 c1             	mov    %eax,%r9d
  24:	e9 71 fd ff ff       	jmp    0xfffffffffffffd9a
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  33:	00 00 00 00 
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 00 
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   17.143170] RSP: 0018:ffff9bf880140d50 EFLAGS: 00010206
[   17.143210] RAX: 000000000000008e RBX: 0000000000000008 RCX: ffff8aca41e65900
[   17.143273] RDX: ffff8aca41e8b280 RSI: 0000000000000100 RDI: ffff8aca41e8b180
[   17.143327] RBP: ffff9bf880140da8 R08: ffff9bf880140da8 R09: 00000000c4a90301
[   17.143384] R10: 0000000000000008 R11: ffff8aca41e65900 R12: ffff8aca4412a600
[   17.143443] R13: 0000000000000008 R14: 0000000000000000 R15: 00000000c4a90301
[   17.143506] FS:  0000000000000000(0000) GS:ffff8aca7ed80000(0000) knlGS:0000000000000000
[   17.143573] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.143631] CR2: 00005654410c8048 CR3: 000000002a844001 CR4: 0000000000770ef0
[   17.143701] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   17.143769] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   17.143838] PKRU: 55555554
[   17.143866] Call Trace:
[   17.143900]  <IRQ>
[   17.143929] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[   17.143975] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[   17.144012] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[   17.144054] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[   17.144091] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[   17.144129] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[   17.144173] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[   17.144212] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[   17.144255] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[   17.144294] __skb_checksum_complete (./arch/x86/include/asm/checksum_64.h:170 ./arch/x86/include/asm/checksum_64.h:180 net/core/skbuff.c:3643) 
[   17.144342] ? __pfx_csum_partial_ext (./include/net/checksum.h:120) 
[   17.144395] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103) 
[   17.144443] rawv6_rcv (net/ipv6/raw.c:355 net/ipv6/raw.c:416 net/ipv6/raw.c:379) 
[   17.144491] raw6_local_deliver (net/ipv6/raw.c:157 net/ipv6/raw.c:206) 
[   17.144531] ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:387) 
[   17.144586] ip6_input_finish (./include/linux/rcupdate.h:782 net/ipv6/ip6_input.c:484) 
[   17.144622] __netif_receive_skb_one_core (net/core/dev.c:5613) 
[   17.144673] process_backlog (./include/linux/rcupdate.h:782 net/core/dev.c:6053) 
[   17.144709] __napi_poll (net/core/dev.c:6703) 
[   17.144749] net_rx_action (net/core/dev.c:6774 net/core/dev.c:6886) 
[   17.144785] __do_softirq (kernel/softirq.c:553) 
[   17.144826] irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644) 
[   17.144868] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14)) 
[   17.144919]  </IRQ>
[   17.144944]  <TASK>
[   17.144965] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:649) 
[   17.145017] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 arch/x86/kernel/process.c:743) 
[ 17.145053] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 73 49 27 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 72 ff ff ff       	jmp    0xffffffffffffff7d
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 73 49 27 00 	verw   0x274973(%rip)        # 0x27499b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   17.145207] RSP: 0018:ffff9bf8800b3ee8 EFLAGS: 00000256
[   17.145256] RAX: ffff8aca7edaa3a0 RBX: ffff8aca41378000 RCX: 4000000000000000
[   17.145326] RDX: 0000000000000001 RSI: ffffffff84495a7c RDI: 00000000000ac8ac
[   17.145396] RBP: 0000000000000003 R08: 00000000000ac8ac R09: 0000000000000001
[   17.145466] R10: 0000000000000001 R11: 0000000000000062 R12: 0000000000000000
[   17.145537] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   17.145611] default_idle_call (./include/linux/cpuidle.h:144 kernel/sched/idle.c:98) 
[   17.145646] do_idle (kernel/sched/idle.c:171 kernel/sched/idle.c:312) 
[   17.145688] cpu_startup_entry (kernel/sched/idle.c:409 (discriminator 1)) 
[   17.145726] start_secondary (arch/x86/kernel/smpboot.c:336) 


Finger prints:
__skb_checksum:__skb_checksum_complete:rawv6_rcv:raw6_local_deliver