====================================== | [ 970.534296] veth1: entered allmulticast mode | [ 975.720783] veth1: left allmulticast mode | [ 983.709071] veth1: left promiscuous mode | [ 983.753169] Oops: general protection fault, probably for non-canonical address 0xdead000000000122: 0000 [#1] PREEMPT SMP NOPTI [ 983.753301] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 983.753363] Workqueue: events_unbound linkwatch_event [ 983.753402] RIP: 0010:neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) [ 983.753445] Code: 89 d6 48 83 ed 10 0f 84 08 01 00 00 48 8b 5d 10 45 84 f6 74 0d 80 bd 9c 00 00 00 00 0f 88 e0 00 00 00 48 8b 45 00 48 8b 55 08 <48> 89 02 48 85 c0 74 04 48 89 50 08 48 8b 45 10 48 8b 55 18 4c 89 All code ======== 0: 89 d6 mov %edx,%esi 2: 48 83 ed 10 sub $0x10,%rbp 6: 0f 84 08 01 00 00 je 0x114 c: 48 8b 5d 10 mov 0x10(%rbp),%rbx 10: 45 84 f6 test %r14b,%r14b 13: 74 0d je 0x22 15: 80 bd 9c 00 00 00 00 cmpb $0x0,0x9c(%rbp) 1c: 0f 88 e0 00 00 00 js 0x102 22: 48 8b 45 00 mov 0x0(%rbp),%rax 26: 48 8b 55 08 mov 0x8(%rbp),%rdx 2a:* 48 89 02 mov %rax,(%rdx) <-- trapping instruction 2d: 48 85 c0 test %rax,%rax 30: 74 04 je 0x36 32: 48 89 50 08 mov %rdx,0x8(%rax) 36: 48 8b 45 10 mov 0x10(%rbp),%rax 3a: 48 8b 55 18 mov 0x18(%rbp),%rdx 3e: 4c rex.WR 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 48 89 02 mov %rax,(%rdx) 3: 48 85 c0 test %rax,%rax 6: 74 04 je 0xc 8: 48 89 50 08 mov %rdx,0x8(%rax) c: 48 8b 45 10 mov 0x10(%rbp),%rax 10: 48 8b 55 18 mov 0x18(%rbp),%rdx 14: 4c rex.WR 15: 89 .byte 0x89 [ 983.753537] RSP: 0018:ffffb19d80157d40 EFLAGS: 00010202 [ 983.753567] RAX: 0000000000000000 RBX: ffff9118c56df810 RCX: 0000000000001388 [ 983.753609] RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff9118fec1d070 [ 983.753651] RBP: ffff9118c12ba200 R08: ffff9118c24ec6fc R09: ffff9118fec1cf40 [ 983.753694] R10: ffff9118fec1cf58 R11: 0000000000000329 R12: ffffffff8dc27160 [ 983.753741] R13: dead000000000122 R14: 0000000000000001 R15: ffff9118c32c2040 [ 983.753798] FS: 0000000000000000(0000) GS:ffff9118fec00000(0000) knlGS:0000000000000000 [ 983.753845] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 983.753885] CR2: 00007f6f55558000 CR3: 0000000018040005 CR4: 0000000000772ef0 [ 983.753940] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 983.753989] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 983.754034] PKRU: 55555554 [ 983.754051] Call Trace: [ 983.754069] [ 983.754089] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) [ 983.754118] ? exc_general_protection (arch/x86/kernel/traps.c:748 arch/x86/kernel/traps.c:693) [ 983.754151] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) [ 983.754187] ? neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) [ 983.754217] __neigh_ifdown.isra.0 (net/core/neighbour.c:425) [ 983.754247] neigh_carrier_down (net/core/neighbour.c:438) [ 983.754271] arp_netdev_event (net/ipv4/arp.c:1343) [ 983.754302] notifier_call_chain (kernel/notifier.c:93) [ 983.754332] netdev_state_change (net/core/dev.c:1380 net/core/dev.c:1371) [ 983.754364] linkwatch_do_dev (net/core/link_watch.c:177) [ 983.754392] __linkwatch_run_queue (./include/linux/spinlock.h:376 net/core/link_watch.c:236) [ 983.754424] linkwatch_event (net/core/link_watch.c:278) [ 983.754449] process_one_work (kernel/workqueue.c:3229) [ 983.754474] worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391) [ 983.754498] ? __pfx_worker_thread (kernel/workqueue.c:3337) [ 983.754530] kthread (kernel/kthread.c:389) [ 983.754553] ? __pfx_kthread (kernel/kthread.c:342) [ 983.754584] ret_from_fork (arch/x86/kernel/process.c:147) [ 983.754617] ? __pfx_kthread (kernel/kthread.c:342) Finger prints: neigh_carrier_down:arp_netdev_event:notifier_call_chain:netdev_state_change:linkwatch_do_dev