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Re: [Xen-devel] Kernel panic on Xen virtualisation in Debian

On 22.07.2016 11:03, Ingo Jürgensmann wrote:


In the meanwhile, I activated IPv6 again on Tuesday evening and today
the server crashed again some minutes ago. Here's the output from
netconsole:


... and the second subsequent crash:
Jul 22 11:15:04 31.172.31.251 [ 2774.896036] BUG: unable to handle kernel 
Jul 22 11:15:04 31.172.31.251  at ffff88026ee6c000
Jul 22 11:15:04 31.172.31.251 [ 2774.896100] IP:
Jul 22 11:15:04 31.172.31.251  [<ffffffff812b7a16>] memcpy+0x6/0x110
Jul 22 11:15:04 31.172.31.251 [ 2774.896127] PGD 1814067
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.896164] Oops: 0000 [#1]
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.896189] Modules linked in:
[omitting kernel modules list]
Jul 22 11:15:04 31.172.31.251 [ 2774.897396] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt25-2+deb8u3 Jul 22 11:15:04 31.172.31.251 [ 2774.897453] Hardware name: Supermicro X9SRE/X9SRE-3F/X9SRi/X9SRi-3F/X9SRE/X9SRE-3F/X9SRi/X9SRi-3F, BIOS 3.0a 01/03/2014 Jul 22 11:15:04 31.172.31.251 [ 2774.897514] task: ffffffff8181a460 ti: ffffffff81800000 task.ti: ffffffff81800000 Jul 22 11:15:04 31.172.31.251 [ 2774.897567] RIP: e030:[<ffffffff812b7a16>] 
Jul 22 11:15:04 31.172.31.251  [<ffffffff812b7a16>] memcpy+0x6/0x110
Jul 22 11:15:04 31.172.31.251 [ 2774.897625] RSP: e02b:ffff880280e03b58 EFLAGS: 00010286 Jul 22 11:15:04 31.172.31.251 [ 2774.897658] RAX: ffff880264550070 RBX: ffff88026cbe2400 RCX: 00000000000002ee Jul 22 11:15:04 31.172.31.251 [ 2774.897694] RDX: 00000000000004a0 RSI: ffff88026ee6c000 RDI: ffff880264550222 Jul 22 11:15:04 31.172.31.251 [ 2774.897729] RBP: ffff880280e03c38 R08: 00000000000006c0 R09: ffff880264550062 Jul 22 11:15:04 31.172.31.251 [ 2774.897765] R10: 0100000000000000 R11: 000000008c9ab7de R12: ffff880250204200 Jul 22 11:15:04 31.172.31.251 [ 2774.897800] R13: ffff88026ee6be66 R14: ffff88026f2a7040 R15: 00000000000004a8 Jul 22 11:15:04 31.172.31.251 [ 2774.897842] FS: 0000000000000000(0000) GS:ffff880280e00000(0000) knlGS:ffff880280e00000 Jul 22 11:15:04 31.172.31.251 [ 2774.897896] CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 22 11:15:04 31.172.31.251 [ 2774.897929] CR2: ffff88026ee6c000 CR3: 00000002645c3000 CR4: 0000000000042660 
Jul 22 11:15:04 31.172.31.251 [ 2774.897965] Stack:
Jul 22 11:15:04 31.172.31.251 [ 2774.897991]  ffffffff814d319f
Jul 22 11:15:04 31.172.31.251  ffff88026a031000
Jul 22 11:15:04 31.172.31.251  ffff880280e03ba8
Jul 22 11:15:04 31.172.31.251  9401294600a7012a
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.898063]  0100000000000000
Jul 22 11:15:04 31.172.31.251  ffffffff814a000a
Jul 22 11:15:04 31.172.31.251  000000006fda7e90
Jul 22 11:15:04 31.172.31.251  00000000000080fe
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.898133]  1ad902feff7ac40e
Jul 22 11:15:04 31.172.31.251  ffff88026fa5c6c0
Jul 22 11:15:04 31.172.31.251  ffff224afc3e1600
Jul 22 11:15:04 31.172.31.251  ffff880250204200
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.898205] Call Trace:
Jul 22 11:15:04 31.172.31.251 [ 2774.898233]  <IRQ>
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.898242]
Jul 22 11:15:04 31.172.31.251 [<ffffffff814d319f>] ? ndisc_send_redirect+0x3bf/0x410 Jul 22 11:15:04 31.172.31.251 [ 2774.898313] [<ffffffff814a000a>] ? reg_vif_xmit+0xca/0xf0 Jul 22 11:15:04 31.172.31.251 [ 2774.898351] [<ffffffff814bbffc>] ? ip6_forward+0x71c/0x850 Jul 22 11:15:04 31.172.31.251 [ 2774.898395] [<ffffffff814c9704>] ? ip6_route_input+0xa4/0xd0 Jul 22 11:15:04 31.172.31.251 [ 2774.898432] [<ffffffff8141eae3>] ? __netif_receive_skb_core+0x543/0x750 Jul 22 11:15:04 31.172.31.251 [ 2774.898468] [<ffffffff8141ed6f>] ? netif_receive_skb_internal+0x1f/0x80 Jul 22 11:15:04 31.172.31.251 [ 2774.898513] [<ffffffffa056feb2>] ? br_handle_frame_finish+0x1c2/0x3c0 [bridge] Jul 22 11:15:04 31.172.31.251 [ 2774.898571] [<ffffffffa05701f7>] ? br_handle_frame+0x147/0x240 [bridge] Jul 22 11:15:04 31.172.31.251 [ 2774.898706] [<ffffffff8141e764>] ? __netif_receive_skb_core+0x1c4/0x750 Jul 22 11:15:04 31.172.31.251 [ 2774.898747] [<ffffffff81009f9c>] ? xen_clocksource_get_cycles+0x1c/0x20 Jul 22 11:15:04 31.172.31.251 [ 2774.898784] [<ffffffff8141ed6f>] ? netif_receive_skb_internal+0x1f/0x80 Jul 22 11:15:04 31.172.31.251 [ 2774.898822] [<ffffffffa072e50f>] ? xenvif_tx_action+0x49f/0x920 [xen_netback] Jul 22 11:15:04 31.172.31.251 [ 2774.898877] [<ffffffffa07312f8>] ? xenvif_poll+0x28/0x70 [xen_netback] Jul 22 11:15:04 31.172.31.251 [ 2774.898914] [<ffffffff8141f0f0>] ? net_rx_action+0x140/0x240 Jul 22 11:15:04 31.172.31.251 [ 2774.898950] [<ffffffff8106c621>] ? __do_softirq+0xf1/0x290 Jul 22 11:15:04 31.172.31.251 [ 2774.898985] [<ffffffff8106c9f5>] ? irq_exit+0x95/0xa0 Jul 22 11:15:04 31.172.31.251 [ 2774.899022] [<ffffffff81359d75>] ? xen_evtchn_do_upcall+0x35/0x50 Jul 22 11:15:04 31.172.31.251 [ 2774.899059] [<ffffffff81515e9e>] ? xen_do_hypervisor_callback+0x1e/0x30 
Jul 22 11:15:04 31.172.31.251 [ 2774.899093]  <EOI>
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.899103]
Jul 22 11:15:04 31.172.31.251 [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20 Jul 22 11:15:04 31.172.31.251 [ 2774.899168] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20 Jul 22 11:15:04 31.172.31.251 [ 2774.899204] [<ffffffff81009e7c>] ? xen_safe_halt+0xc/0x20 Jul 22 11:15:04 31.172.31.251 [ 2774.899241] [<ffffffff8101c8e9>] ? default_idle+0x19/0xb0 Jul 22 11:15:04 31.172.31.251 [ 2774.899278] [<ffffffff810a8330>] ? cpu_startup_entry+0x340/0x400 Jul 22 11:15:04 31.172.31.251 [ 2774.899315] [<ffffffff81903076>] ? start_kernel+0x497/0x4a2 Jul 22 11:15:04 31.172.31.251 [ 2774.899350] [<ffffffff81902a04>] ? set_init_arg+0x4e/0x4e Jul 22 11:15:04 31.172.31.251 [ 2774.899385] [<ffffffff81904f63>] ? xen_start_kernel+0x569/0x573 
Jul 22 11:15:04 31.172.31.251 [ 2774.899419] Code:
Jul 22 11:15:04 31.172.31.251  <f3>
Jul 22 11:15:04 31.172.31.251
Jul 22 11:15:04 31.172.31.251 [ 2774.899862] RIP
Jul 22 11:15:04 31.172.31.251  [<ffffffff812b7a16>] memcpy+0x6/0x110
Jul 22 11:15:04 31.172.31.251 [ 2774.899901]  RSP <ffff880280e03b58>
Jul 22 11:15:04 31.172.31.251 [ 2774.899930] CR2: ffff88026ee6c000
Jul 22 11:15:04 31.172.31.251 [ 2774.900193] ---[ end trace 39c5ffc74a403d90 ]--- Jul 22 11:15:04 31.172.31.251 [ 2774.905607] Kernel panic - not syncing: Fatal exception in interrupt Jul 22 11:15:04 31.172.31.251 [ 2774.905713] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff) 


--
Ciao...          //        http://blog.windfluechter.net
      Ingo     \X/     XMPP: ij@xxxxxxxxxxxxxxxxxxxxxxxx


gpg pubkey:  http://www.juergensmann.de/ij_public_key.asc

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