======================================
|
| [    1.821287] ------------[ cut here ]------------
| [    1.821455] kernel BUG at net/core/skbuff.c:2813!
| [    1.821516] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[    1.821628] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[    1.821708] RIP: 0010:__pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 1.821750] Code: 44 24 10 e8 ad e4 81 ff 49 8b be c0 00 00 00 44 8b 44 24 10 41 8b 8e bc 00 00 00 e9 f4 fc ff ff 4c 8d 48 ff e9 41 fd ff ff 90 <0f> 0b 48 c7 44 24 10 00 00 00 00 e9 99 fe ff ff 41 f6 44 24 7e 20
All code
========
   0:	44 24 10             	rex.R and $0x10,%al
   3:	e8 ad e4 81 ff       	call   0xffffffffff81e4b5
   8:	49 8b be c0 00 00 00 	mov    0xc0(%r14),%rdi
   f:	44 8b 44 24 10       	mov    0x10(%rsp),%r8d
  14:	41 8b 8e bc 00 00 00 	mov    0xbc(%r14),%ecx
  1b:	e9 f4 fc ff ff       	jmp    0xfffffffffffffd14
  20:	4c 8d 48 ff          	lea    -0x1(%rax),%r9
  24:	e9 41 fd ff ff       	jmp    0xfffffffffffffd6a
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	48 c7 44 24 10 00 00 	movq   $0x0,0x10(%rsp)
  33:	00 00 
  35:	e9 99 fe ff ff       	jmp    0xfffffffffffffed3
  3a:	41 f6 44 24 7e 20    	testb  $0x20,0x7e(%r12)

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	48 c7 44 24 10 00 00 	movq   $0x0,0x10(%rsp)
   9:	00 00 
   b:	e9 99 fe ff ff       	jmp    0xfffffffffffffea9
  10:	41 f6 44 24 7e 20    	testb  $0x20,0x7e(%r12)
[    1.821865] RSP: 0018:ffffb270c0003d80 EFLAGS: 00010282
[    1.821904] RAX: 00000000fffffff2 RBX: 0000000000000014 RCX: 0000000000000014
[    1.821957] RDX: ffff948a424f9238 RSI: 0000000000000100 RDI: 0000000000000000
[    1.822004] RBP: ffffb270c0003dc0 R08: 00000000ffffffcc R09: ffff948a4367e000
[    1.822051] R10: 0000000000000008 R11: ffff948a423defd4 R12: 00000000ffffffff
[    1.822098] R13: 0000000000000014 R14: ffff948a423def00 R15: 0000000000000001
[    1.822150] FS:  00007ff5dd69c740(0000) GS:ffff948a7ec00000(0000) knlGS:0000000000000000
[    1.822204] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.822248] CR2: 00007ff5dd6afd96 CR3: 00000000023d8002 CR4: 0000000000770ef0
[    1.822301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    1.822356] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    1.822398] PKRU: 55555554
[    1.822417] Call Trace:
[    1.822435]  <IRQ>
[    1.822451] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[    1.822480] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[    1.822511] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[    1.822533] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[    1.822559] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[    1.822586] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[    1.822616] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[    1.822642] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[    1.822672] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[    1.822699] tcp_v4_rcv (./include/linux/skbuff.h:2731 ./include/linux/skbuff.h:2739 net/ipv4/tcp_ipv4.c:2181) 
[    1.822728] ? raw_local_deliver (net/ipv4/raw.c:199) 
[    1.822757] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1)) 
[    1.822793] ip_local_deliver_finish (./include/linux/rcupdate.h:782 net/ipv4/ip_input.c:234) 
[    1.822829] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) 
[    1.822870] process_backlog (./include/linux/rcupdate.h:782 net/core/dev.c:6053) 
[    1.822896] __napi_poll (net/core/dev.c:6703) 
[    1.822928] net_rx_action (net/core/dev.c:6774 net/core/dev.c:6886) 
[    1.822956] __do_softirq (kernel/softirq.c:553) 
[    1.822985] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[    1.823014]  </IRQ>
[    1.823033]  <TASK>
[    1.823047] __local_bh_enable_ip (kernel/softirq.c:381) 
[    1.823068] __dev_queue_xmit (net/core/dev.c:4400) 
[    1.823094] ? eth_header (net/ethernet/eth.c:85) 
[    1.823121] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[    1.823154] __ip_queue_xmit (net/ipv4/ip_output.c:535) 
[    1.823185] __tcp_transmit_skb (net/ipv4/tcp_output.c:1462 (discriminator 4)) 
[    1.823215] ? kmalloc_reserve (net/core/skbuff.c:584) 
[    1.823245] tcp_connect (net/ipv4/tcp_output.c:1480 net/ipv4/tcp_output.c:4100) 
[    1.823275] tcp_v4_connect (net/ipv4/tcp_ipv4.c:324) 
[    1.823307] __inet_stream_connect (net/ipv4/af_inet.c:678) 
[    1.823341] ? release_sock (./include/linux/list.h:373 ./include/linux/wait.h:127 net/core/sock.c:3557) 
[    1.823370] ? __inet_bind (net/ipv4/af_inet.c:564) 
[    1.823397] inet_stream_connect (net/ipv4/af_inet.c:750) 
[    1.823423] __sys_connect (net/socket.c:2048 net/socket.c:2065) 
[    1.823454] ? handle_mm_fault (mm/memory.c:5330 mm/memory.c:5486) 
[    1.823481] ? do_user_addr_fault (./include/linux/rcupdate.h:782 ./include/linux/mm.h:688 arch/x86/mm/fault.c:1357) 
[    1.823518] __x64_sys_connect (net/socket.c:2075 net/socket.c:2072 net/socket.c:2072) 
[    1.823545] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[    1.823573] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[    1.823607] RIP: 0033:0x7ff5dd7ee3d7
[ 1.823637] Code: 0a 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 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:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
   c:	eb bc                	jmp    0xffffffffffffffca
   e:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  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
[    1.823744] RSP: 002b:00007fffabcf5208 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[    1.823795] RAX: ffffffffffffffda RBX: 0000000000408a68 RCX: 00007ff5dd7ee3d7
[    1.823846] RDX: 0000000000000010 RSI: 00007fffabcf5230 RDI: 0000000000000005
[    1.823893] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
[    1.823944] R10: 00007ff5dd6a6598 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
__pskb_pull_tail:tcp_v4_rcv:ip_protocol_deliver_rcu:ip_local_deliver_finish