We've successfully reproduced the error on a newly built instance. We'll proceed to run the mainline kernel on the same instance.
Worth noting that it took 441529 seconds (5.1 days) since boot for this to manifest in this case. On our previous instance the time to failure was in the order of a hours to days.
We've successfully reproduced the error on a newly built instance. We'll proceed to run the mainline kernel on the same instance.
Worth noting that it took 441529 seconds (5.1 days) since boot for this to manifest in this case. On our previous instance the time to failure was in the order of a hours to days.
[441529.300238] ------------[ cut here ]------------ linux-lts- xenial- N0BD4p/ linux-lts- xenial- 4.4.0/net/ ipv6/addrconf_ core.c: 159 in6_dev_ finish_ destroy+ 0x6b/0xb0( ) 2dc>] dump_stack+ 0x63/0x87 a46>] warn_slowpath_ common+ 0x86/0xc0 b3a>] warn_slowpath_ null+0x1a/ 0x20 b9b>] in6_dev_ finish_ destroy+ 0x6b/0xb0 360>] ip6_route_ dev_notify+ 0x110/0x130 de9>] notifier_ call_chain+ 0x49/0x70 f06>] raw_notifier_ call_chain+ 0x16/0x20 d35>] call_netdevice_ notifiers_ info+0x35/ 0x60 007>] netdev_ run_todo+ 0x157/0x300 a4e>] ? rollback_ registered_ many+0x22e/ 0x2e0 2fe>] rtnl_unlock+ 0xe/0x10 d98>] default_ device_ exit_batch+ 0x138/0x150 540>] ? __wake_ up_sync+ 0x20/0x20 252>] ops_exit_ list.isra. 4+0x52/ 0x60 223>] cleanup_ net+0x1b3/ 0x280 d90>] process_ one_work+ 0x150/0x3f0 50a>] worker_ thread+ 0x11a/0x470 d99>] ? __schedule+ 0x359/0x980 3f0>] ? rescuer_ thread+ 0x310/0x310 dc6>] kthread+0xd6/0xf0 875>] ? do_exit+0x655/0xae0 cf0>] ? kthread_ park+0x60/ 0x60 00f>] ret_from_ fork+0x3f/ 0x70 cf0>] ? kthread_ park+0x60/ 0x60 linux-lts- xenial- N0BD4p/ linux-lts- xenial- 4.4.0/net/ ipv6/addrconf_ core.c: 160 in6_dev_ finish_ destroy+ 0xa4/0xb0( ) 2dc>] dump_stack+ 0x63/0x87 a46>] warn_slowpath_ common+ 0x86/0xc0 b3a>] warn_slowpath_ null+0x1a/ 0x20 bd4>] in6_dev_ finish_ destroy+ 0xa4/0xb0 360>] ip6_route_ dev_notify+ 0x110/0x130 de9>] notifier_ call_chain+ 0x49/0x70 f06>] raw_notifier_ call_chain+ 0x16/0x20 d35>] call_netdevice_ notifiers_ info+0x35/ 0x60 007>] netdev_ run_todo+ 0x157/0x300 a4e>] ? rollback_ registered_ many+0x22e/ 0x2e0 2fe>] rtnl_unlock+ 0xe/0x10 d98>] default_ device_ exit_batch+ 0x138/0x150 540>] ? __wake_ up_sync+ 0x20/0x20 252>] ops_exit_ list.isra. 4+0x52/ 0x60 223>] cleanup_ net+0x1b3/ 0x280 d90>] process_ one_work+ 0x150/0x3f0 50a>] worker_ thread+ 0x11a/0x470 d99>] ? __schedule+ 0x359/0x980 3f0>] ? rescuer_ thread+ 0x310/0x310 dc6>] kthread+0xd6/0xf0 875>] ? do_exit+0x655/0xae0 cf0>] ? kthread_ park+0x60/ 0x60 00f>] ret_from_ fork+0x3f/ 0x70 cf0>] ? kthread_ park+0x60/ 0x60 ffffffff817e8b5 d>] [<ffffffff817e8 b5d>] in6_dev_ finish_ destroy+ 0x2d/0xb0 ddbc10 EFLAGS: 00010246 0(0000) GS:ffff88013fd0 0000(0000) knlGS:000000000 0000000 360>] ip6_route_ dev_notify+ 0x110/0x130 de9>] notifier_ call_chain+ 0x49/0x70 f06>] raw_notifier_ call_chain+ 0x16/0x20 d35>] call_netdevice_ notifiers_ info+0x35/ 0x60 007>] netdev_ run_todo+ 0x157/0x300 a4e>] ? rollback_ registered_ many+0x22e/ 0x2e0 2fe>] rtnl_unlock+ 0xe/0x10 d98>] default_ device_ exit_batch+ 0x138/0x150 540>] ? __wake_ up_sync+ 0x20/0x20 252>] ops_exit_ list.isra. 4+0x52/ 0x60 223>] cleanup_ net+0x1b3/ 0x280 d90>] process_ one_work+ 0x150/0x3f0 50a>] worker_ thread+ 0x11a/0x470 d99>] ? __schedule+ 0x359/0x980 3f0>] ? rescuer_ thread+ 0x310/0x310 dc6>] kthread+0xd6/0xf0 875>] ? do_exit+0x655/0xae0 cf0>] ? kthread_ park+0x60/ 0x60 00f>] ret_from_ fork+0x3f/ 0x70 cf0>] ? kthread_ park+0x60/ 0x60
[441529.300288] WARNING: CPU: 1 PID: 10409 at /build/
[441529.300359] CPU: 1 PID: 10409 Comm: kworker/u4:0 Not tainted 4.4.0-87-generic #110~14.04.1-Ubuntu
[441529.300361] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/17/2015
[441529.300374] Workqueue: netns cleanup_net
[441529.300376] 0000000000000000 ffff880088ddbbb8 ffffffff813de2dc 0000000000000000
[441529.300378] ffffffff81d7aa60 ffff880088ddbbf0 ffffffff8107ea46 ffff880139e5a400
[441529.300380] 0000000000000000 0000000000000006 ffff880088ddbcc0 0000000000000000
[441529.300382] Call Trace:
[441529.300398] [<ffffffff813de
[441529.300413] [<ffffffff8107e
[441529.300415] [<ffffffff8107e
[441529.300417] [<ffffffff817e8
[441529.300421] [<ffffffff817be
[441529.300425] [<ffffffff8109d
[441529.300427] [<ffffffff8109d
[441529.300429] [<ffffffff81701
[441529.300432] [<ffffffff8170c
[441529.300436] [<ffffffff81703
[441529.300440] [<ffffffff81717
[441529.300442] [<ffffffff81704
[441529.300452] [<ffffffff810bf
[441529.300454] [<ffffffff816fd
[441529.300456] [<ffffffff816fe
[441529.300461] [<ffffffff81096
[441529.300463] [<ffffffff81097
[441529.300471] [<ffffffff81808
[441529.300473] [<ffffffff81097
[441529.300475] [<ffffffff8109c
[441529.300477] [<ffffffff81081
[441529.300479] [<ffffffff8109c
[441529.300481] [<ffffffff8180d
[441529.300483] [<ffffffff8109c
[441529.300484] ---[ end trace 5e09761f8674a0af ]---
[441529.300485] ------------[ cut here ]------------
[441529.300487] WARNING: CPU: 1 PID: 10409 at /build/
[441529.300510] CPU: 1 PID: 10409 Comm: kworker/u4:0 Tainted: G W 4.4.0-87-generic #110~14.04.1-Ubuntu
[441529.300511] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/17/2015
[441529.300513] Workqueue: netns cleanup_net
[441529.300514] 0000000000000000 ffff880088ddbbb8 ffffffff813de2dc 0000000000000000
[441529.300515] ffffffff81d7aa60 ffff880088ddbbf0 ffffffff8107ea46 ffff880139e5a400
[441529.300517] 0000000000000000 0000000000000006 ffff880088ddbcc0 0000000000000000
[441529.300518] Call Trace:
[441529.300520] [<ffffffff813de
[441529.300522] [<ffffffff8107e
[441529.300524] [<ffffffff8107e
[441529.300526] [<ffffffff817e8
[441529.300528] [<ffffffff817be
[441529.300529] [<ffffffff8109d
[441529.300531] [<ffffffff8109d
[441529.300533] [<ffffffff81701
[441529.300535] [<ffffffff8170c
[441529.300538] [<ffffffff81703
[441529.300540] [<ffffffff81717
[441529.300543] [<ffffffff81704
[441529.300546] [<ffffffff810bf
[441529.300549] [<ffffffff816fd
[441529.300552] [<ffffffff816fe
[441529.300555] [<ffffffff81096
[441529.300558] [<ffffffff81097
[441529.300561] [<ffffffff81808
[441529.300563] [<ffffffff81097
[441529.300564] [<ffffffff8109c
[441529.300566] [<ffffffff81081
[441529.300568] [<ffffffff8109c
[441529.300570] [<ffffffff8180d
[441529.300571] [<ffffffff8109c
[441529.300573] ---[ end trace 5e09761f8674a0b0 ]---
[441529.300775] PGD b97cd067 PUD b97ad067 PMD 0
[441529.300877] Oops: 0000 [#1] SMP
[441529.301242] CPU: 1 PID: 10409 Comm: kworker/u4:0 Tainted: G W 4.4.0-87-generic #110~14.04.1-Ubuntu
[441529.301281] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/17/2015
[441529.302097] Workqueue: netns cleanup_net
[441529.302114] task: ffff880057de0e00 ti: ffff880088dd8000 task.ti: ffff880088dd8000
[441529.302143] RIP: 0010:[<
[441529.328032] RSP: 0018:ffff880088
[441529.328064] RAX: 0000000000000024 RBX: ffff880139e5a400 RCX: 0000000000000006
[441529.328092] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009
[441529.328120] RBP: ffff880088ddbc20 R08: 000000002d2d2d5d R09: 3520656361727420
[441529.328147] R10: 3866313637393065 R11: 000000000003183f R12: 0000000000000000
[441529.328175] R13: 0000000000000006 R14: ffff880088ddbcc0 R15: 0000000000000000
[441529.328206] FS: 000000000000000
[441529.328237] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[441529.328260] CR2: 0000000000000448 CR3: 00000000b9743000 CR4: 00000000000406e0
[441529.328351] Stack:
[441529.328363] ffff8800b0349880 0000000000000000 ffff880088ddbc38 ffffffff817be360
[441529.328397] 00000000ffffffed ffff880088ddbc70 ffffffff8109dde9 ffff880088ddbcc0
[441529.328429] 0000000000000006 ffff88002397d000 0000000106932e35 00000000000000fa
[441529.329355] Call Trace:
[441529.330187] [<ffffffff817be
[441529.331043] [<ffffffff8109d
[441529.331927] [<ffffffff8109d
[441529.332740] [<ffffffff81701
[441529.333546] [<ffffffff8170c
[441529.334360] [<ffffffff81703
[441529.335187] [<ffffffff81717
[441529.335981] [<ffffffff81704
[441529.336771] [<ffffffff810bf
[441529.337534] [<ffffffff816fd
[441529.338296] [<ffffffff816fe
[441529.339013] [<ffffffff81096
[441529.339750] [<ffffffff81097
[441529.340448] [<ffffffff81808
[441529.341116] [<ffffffff81097
[441529.341820] [<ffffffff8109c
[441529.342471] [<ffffffff81081
[441529.343102] [<ffffffff8109c
[441529.343696] [<ffffffff8180d
[441529.344306] [<ffffffff8109c
[441529.344890] Code: 66 66 90 55 48 8d 47 08 48 89 e5 41 54 53 48 39 47 08 48 89 fb 4c 8b 27 75 3e 48 83 7b 18 00 75 70 48 83 bb b8 02 00 00 00 75 53 <49> 8b 84 24 48 04 00 00 65 ff 08 8b 83 58 01 00 00 85 c0 74 2b
[441529.347349] RSP <ffff880088ddbc10>
[441529.347956] CR2: 0000000000000448
[441529.349682] ---[ end trace 5e09761f8674a0b1 ]---