Kernel consistently panicing on br_parse_ip_options

From: Massimo Cetra
Date: Mon May 14 2012 - 08:43:13 EST

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Hello,

I had already filed similar panics a month ago.
Today i upgraded to 3.2.16 and nothing seems to be changed (and i don't see anything related in .17).

The server (a Dell R410 with a couple of bnx2 ethernet cards) has two bridges onboard.

Each bridge is connected to a different switch and has 2 uses:
- one bridge is connecting an internal network and the KVM hosts that run on the same machine
- one bridge connects the server to the public network along with another bunch of kvm servers whose interfaces bridges

The bug can be easily triggered adding or removing (with heartbeat) a virtual address (br0:1, for example) .

Is there any known fix or patch ?

Thanks
Massimo

May 14 14:14:28 172.30.1.2 [ 426.318698] BUG: unable to handle kernel
May 14 14:14:28 172.30.1.2 [ 426.334484] IP:
May 14 14:14:28 172.30.1.2 [ 426.348653] PGD 0
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.352753] Oops: 0000 [#1]
May 14 14:14:28 172.30.1.2 SMP
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.359335] CPU 0
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.363033] Modules linked in:
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.505401]
May 14 14:14:28 172.30.1.2 [ 426.508406] Pid: 3831, comm: kvm Not tainted 3.2.0-2-amd64 #1
May 14 14:14:28 172.30.1.2 /0N051F
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.525620] RIP: 0010:[<ffffffffa0248336>]
May 14 14:14:28 172.30.1.2 [ 426.544639] RSP: 0018:ffff88042fc03b18 EFLAGS: 00010293
May 14 14:14:28 172.30.1.2 [ 426.555288] RAX: 0000000000000000 RBX: ffff88042517ed80 RCX: 0000000100007b59
May 14 14:14:28 172.30.1.2 [ 426.569579] RDX: ffffffffa0248308 RSI: 0000000000000282 RDI: ffff88042517ed80
May 14 14:14:28 172.30.1.2 [ 426.583872] RBP: ffff8804263ca000 R08: 0000000000000000 R09: ffff88042fc03ad0
May 14 14:14:28 172.30.1.2 [ 426.598162] R10: ffffffff8165aac0 R11: ffffffff8165aac0 R12: 0000000000000000
May 14 14:14:28 172.30.1.2 [ 426.612453] R13: ffff8804250a8002 R14: ffff8803d6f2f600 R15: ffff8804250a8000
May 14 14:14:28 172.30.1.2 [ 426.626747] FS: 00007f87688e6900(0000) GS:ffff88042fc00000(0000) knlGS:0000000000000000
May 14 14:14:28 172.30.1.2 [ 426.642961] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
May 14 14:14:28 172.30.1.2 [ 426.654477] CR2: 0000000000000018 CR3: 00000004231e6000 CR4: 00000000000026e0
May 14 14:14:28 172.30.1.2 [ 426.668770] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
May 14 14:14:28 172.30.1.2 [ 426.683063] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
May 14 14:14:28 172.30.1.2 [ 426.697356] Process kvm (pid: 3831, threadinfo ffff8804232ae000, task ffff8804261bc8f0)
May 14 14:14:28 172.30.1.2 [ 426.713396] Stack:
May 14 14:14:28 172.30.1.2 [ 426.717457] ffffffff80000000
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.732504] ffff880227a60000
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.747550] ffff88042517ed80
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.762595] Call Trace:
May 14 14:14:28 172.30.1.2 [ 426.767521] <IRQ>
May 14 14:14:28 172.30.1.2
May 14 14:14:28 172.30.1.2 [ 426.771812] [<ffffffffa02486db>] ? br_parse_ip_options+0x3d/0x19a [bridge]
May 14 14:14:28 172.30.1.2 [ 426.785762] [<ffffffffa0248a67>] ? br_nf_forward_ip+0x1c0/0x1d4 [bridge]
May 14 14:14:28 172.30.1.2 [ 426.799365] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:28 172.30.1.2 [ 426.810018] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:28 172.30.1.2 [ 426.822578] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:28 172.30.1.2 [ 426.835139] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:28 172.30.1.2 [ 426.846313] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.858873] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.872647] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.885206] [<ffffffffa024385e>] ? NF_HOOK.constprop.8+0x3c/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.898980] [<ffffffffa02439f2>] ? br_forward+0x16/0x5a [bridge]
May 14 14:14:29 172.30.1.2 [ 426.911195] [<ffffffffa024451b>] ? br_handle_frame_finish+0x1a1/0x20f [bridge]
May 14 14:14:29 172.30.1.2 [ 426.925851] [<ffffffffa02485ff>] ? br_nf_pre_routing_finish+0x1d0/0x1dd [bridge]
May 14 14:14:29 172.30.1.2 [ 426.940856] [<ffffffffa0247ff0>] ? NF_HOOK_THRESH+0x3b/0x55 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.953763] [<ffffffffa0248f58>] ? br_nf_pre_routing+0x3e8/0x3f5 [bridge]
May 14 14:14:29 172.30.1.2 [ 426.967536] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:29 172.30.1.2 [ 426.978191] [<ffffffff8128ad1d>] ? netif_receive_skb+0x63/0x69
May 14 14:14:29 172.30.1.2 [ 426.990056] [<ffffffff8128b1ef>] ? napi_gro_receive+0x1d/0x2b
May 14 14:14:29 172.30.1.2 [ 427.001751] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.015525] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:29 172.30.1.2 [ 427.026699] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.040474] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.054249] [<ffffffffa0244360>] ? NF_HOOK.constprop.4+0x3c/0x56 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.068025] [<ffffffff810135ad>] ? paravirt_read_tsc+0x5/0x8
May 14 14:14:29 172.30.1.2 [ 427.079542] [<ffffffff81013622>] ? read_tsc+0x5/0x14
May 14 14:14:29 172.30.1.2 [ 427.089674] [<ffffffffa024473c>] ? br_handle_frame+0x1b3/0x1cb [bridge]
May 14 14:14:29 172.30.1.2 [ 427.103103] [<ffffffffa0244589>] ? br_handle_frame_finish+0x20f/0x20f [bridge]
May 14 14:14:29 172.30.1.2 [ 427.117759] [<ffffffff812892c0>] ? __netif_receive_skb+0x324/0x41f
May 14 14:14:29 172.30.1.2 [ 427.130319] [<ffffffff81289427>] ? process_backlog+0x6c/0x123
May 14 14:14:29 172.30.1.2 [ 427.142012] [<ffffffff8128b30d>] ? net_rx_action+0xa1/0x1af
May 14 14:14:29 172.30.1.2 [ 427.153360] [<ffffffff81036fab>] ? test_tsk_need_resched+0xa/0x13
May 14 14:14:29 172.30.1.2 [ 427.165748] [<ffffffff8104be30>] ? __do_softirq+0xb9/0x177
May 14 14:14:29 172.30.1.2 [ 427.176924] [<ffffffff8135046c>] ? call_softirq+0x1c/0x30
May 14 14:14:29 172.30.1.2 [ 427.187920] <EOI>
May 14 14:14:29 172.30.1.2
May 14 14:14:29 172.30.1.2 [ 427.192210] [<ffffffff8100f8e5>] ? do_softirq+0x3c/0x7b
May 14 14:14:29 172.30.1.2 [ 427.202862] [<ffffffff8128b5fd>] ? netif_rx_ni+0x1e/0x27
May 14 14:14:29 172.30.1.2 [ 427.213688] [<ffffffffa02a7721>] ? tun_get_user+0x39a/0x3c2 [tun]
May 14 14:14:29 172.30.1.2 [ 427.226074] [<ffffffffa02a7a66>] ? tun_chr_poll+0xcd/0xcd [tun]
May 14 14:14:29 172.30.1.2 [ 427.238114] [<ffffffffa02a7ac4>] ? tun_chr_aio_write+0x5e/0x79 [tun]
May 14 14:14:29 172.30.1.2 [ 427.251024] [<ffffffff810f9594>] ? do_sync_readv_writev+0x9a/0xd7
May 14 14:14:29 172.30.1.2 [ 427.263408] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:29 172.30.1.2 [ 427.274580] [<ffffffff810f8c16>] ? do_sync_read+0xab/0xe3
May 14 14:14:29 172.30.1.2 [ 427.285578] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:29 172.30.1.2 [ 427.296754] [<ffffffff811626a1>] ? security_file_permission+0x16/0x2d
May 14 14:14:29 172.30.1.2 [ 427.309833] [<ffffffff810f97f8>] ? do_readv_writev+0xaf/0x11c
May 14 14:14:29 172.30.1.2 [ 427.321527] [<ffffffff8112ab7e>] ? eventfd_ctx_read+0x162/0x174
May 14 14:14:29 172.30.1.2 [ 427.333570] [<ffffffff8103f3ff>] ? try_to_wake_up+0x197/0x197
May 14 14:14:29 172.30.1.2 [ 427.345261] [<ffffffff810f99cd>] ? sys_writev+0x45/0x90
May 14 14:14:29 172.30.1.2 [ 427.355914] [<ffffffff8134e212>] ? system_call_fastpath+0x16/0x1b
May 14 14:14:29 172.30.1.2 [ 427.368297] Code:
May 14 14:14:29 172.30.1.2 53
May 14 14:14:29 172.30.1.2 48
May 14 14:14:29 172.30.1.2 89
May 14 14:14:29 172.30.1.2 fb
May 14 14:14:29 172.30.1.2 48
May 14 14:14:29 172.30.1.2 83
May 14 14:14:29 172.30.1.2 ec
May 14 14:14:29 172.30.1.2 10
May 14 14:14:29 172.30.1.2 66
May 14 14:14:29 172.30.1.2 81
May 14 14:14:29 172.30.1.2 7f
May 14 14:14:29 172.30.1.2 7e
May 14 14:14:29 172.30.1.2 08
May 14 14:14:29 172.30.1.2 06
May 14 14:14:29 172.30.1.2 4c
May 14 14:14:29 172.30.1.2 8b
May 14 14:14:29 172.30.1.2 a7
May 14 14:14:29 172.30.1.2 98
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 74
May 14 14:14:29 172.30.1.2 3d
May 14 14:14:29 172.30.1.2 e8
May 14 14:14:29 172.30.1.2 07
May 14 14:14:29 172.30.1.2 fe
May 14 14:14:29 172.30.1.2 ff
May 14 14:14:29 172.30.1.2 ff
May 14 14:14:29 172.30.1.2 66
May 14 14:14:29 172.30.1.2 3d
May 14 14:14:29 172.30.1.2 08
May 14 14:14:29 172.30.1.2 06
May 14 14:14:29 172.30.1.2 75
May 14 14:14:29 172.30.1.2 09
May 14 14:14:29 172.30.1.2 83
May 14 14:14:29 172.30.1.2 3d
May 14 14:14:29 172.30.1.2 98
May 14 14:14:29 172.30.1.2 6a
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 00
May 14 14:14:29 172.30.1.2 75
May 14 14:14:29 172.30.1.2 29
May 14 14:14:29 172.30.1.2
May 14 14:14:29 172.30.1.2 f6
May 14 14:14:29 172.30.1.2 44
May 14 14:14:29 172.30.1.2 24
May 14 14:14:29 172.30.1.2 18
May 14 14:14:29 172.30.1.2 01
May 14 14:14:29 172.30.1.2 49
May 14 14:14:29 172.30.1.2 8b
May 14 14:14:29 172.30.1.2 6c
May 14 14:14:29 172.30.1.2 24
May 14 14:14:29 172.30.1.2 08
May 14 14:14:29 172.30.1.2 74
May 14 14:14:29 172.30.1.2
May 14 14:14:29 172.30.1.2 [ 427.403992] ------------[ cut here ]------------
May 14 14:14:29 172.30.1.2 [ 427.403995] WARNING: at /build/buildd-linux-2.6_3.2.16-1-amd64-AZNfko/linux-2.6-3.2.16/debian/build/source_amd64_none/kernel/softirq.c:159 _local_bh_enable_ip.isra.11+0x3d/0x88()
May 14 14:14:29 172.30.1.2 [ 427.403998] Hardware name: PowerEdge R410
May 14 14:14:29 172.30.1.2 [ 427.403999] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ip6table_filter ip6_tables iptable_filter ip_tables x_tables ip_vs_rr ip_vs nf_conntrack crc32c libcrc32c drbd lru_cache cn tun bridge stp virtio_net virtio_blk virtio_rng rng_core virtio_pci virtio_ring virtio kvm_intel kvm ipmi_devintf ipmi_poweroff ipmi_si ipmi_watchdog ipmi_msghandler netconsole configfs loop snd_pcm snd_page_alloc snd_timer snd i7core_edac edac_core psmouse soundcore processor joydev iTCO_wdt iTCO_vendor_support button serio_raw thermal_sys dcdbas evdev pcspkr ext3 mbcache jbd dm_mod sr_mod cdrom sd_mod ses usbhid hid enclosure crc_t10dif ata_generic uhci_hcd ata_piix ehci_hcd libata megaraid_sas usbcore bnx2 scsi_mod usb_common [last unloaded: scsi_wait_scan]
May 14 14:14:29 172.30.1.2 [ 427.404034] Pid: 3831, comm: kvm Not tainted 3.2.0-2-amd64 #1
May 14 14:14:29 172.30.1.2 [ 427.404035] Call Trace:
May 14 14:14:29 172.30.1.2 [ 427.404036] <IRQ> [<ffffffff81046811>] ? warn_slowpath_common+0x78/0x8c
May 14 14:14:29 172.30.1.2 [ 427.404043] [<ffffffff8104bd22>] ? _local_bh_enable_ip.isra.11+0x3d/0x88
May 14 14:14:29 172.30.1.2 [ 427.404049] [<ffffffffa0000748>] ? bnx2_reg_rd_ind+0x31/0x38 [bnx2]
May 14 14:14:29 172.30.1.2 [ 427.404055] [<ffffffffa00097d7>] ? bnx2_poll+0x1b7/0x1c4 [bnx2]
May 14 14:14:29 172.30.1.2 [ 427.404061] [<ffffffff8129b155>] ? netpoll_poll_dev.part.16+0x9b/0x499
May 14 14:14:29 172.30.1.2 [ 427.404065] [<ffffffff8129b66d>] ? netpoll_send_skb_on_dev+0x11a/0x201
May 14 14:14:29 172.30.1.2 [ 427.404070] [<ffffffffa024231a>] ? br_dev_xmit+0x12e/0x142 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.404073] [<ffffffff8129b61e>] ? netpoll_send_skb_on_dev+0xcb/0x201
May 14 14:14:29 172.30.1.2 [ 427.404077] [<ffffffffa012225c>] ? write_msg+0x98/0xf3 [netconsole]
May 14 14:14:29 172.30.1.2 [ 427.404080] [<ffffffff8104695a>] ? __call_console_drivers+0x72/0x83
May 14 14:14:29 172.30.1.2 [ 427.404083] [<ffffffff81047026>] ? console_unlock+0x144/0x1e8
May 14 14:14:29 172.30.1.2 [ 427.404086] [<ffffffff81047549>] ? vprintk+0x396/0x3d9
May 14 14:14:29 172.30.1.2 [ 427.404092] [<ffffffffa0248342>] ? br_nf_forward_finish+0x3a/0x95 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.404097] [<ffffffffa024830b>] ? br_nf_forward_finish+0x3/0x95 [bridge]
May 14 14:14:29 172.30.1.2 [ 427.404103] [<ffffffff81342c8e>] ? printk+0x43/0x48
May 14 14:14:29 172.30.1.2 [ 427.404106] [<ffffffff8100fe6a>] ? show_registers+0x1de/0x20a
May 14 14:14:29 172.30.1.2 [ 427.404112] [<ffffffff8134a11e>] ? __die+0x8b/0xc8
May 14 14:14:29 172.30.1.2 [ 427.404115] [<ffffffff8134245e>] ? no_context+0x1d6/0x20e
May 14 14:14:29 172.30.1.2 [ 427.404118] [<ffffffff81052262>] ? __mod_timer+0x139/0x14b
May 14 14:14:29 172.30.1.2 [ 427.404121] [<ffffffff8134c099>] ? do_page_fault+0x1a8/0x337
May 14 14:14:29 172.30.1.2 [ 427.404126] [<ffffffffa03e0f06>] ? ip_vs_conn_put+0x28/0x32 [ip_vs]
May 14 14:14:30 172.30.1.2 [ 427.404131] [<ffffffffa03e30e0>] ? ip_vs_out+0x2bd/0x432 [ip_vs]
May 14 14:14:30 172.30.1.2 [ 427.404134] [<ffffffff8128c0e2>] ? dev_hard_start_xmit+0x3fc/0x543
May 14 14:14:30 172.30.1.2 [ 427.404137] [<ffffffff813497f5>] ? page_fault+0x25/0x30
May 14 14:14:30 172.30.1.2 [ 427.404143] [<ffffffffa0248308>] ? nf_bridge_update_protocol+0x20/0x20 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404148] [<ffffffffa0248336>] ? br_nf_forward_finish+0x2e/0x95 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404153] [<ffffffffa0248327>] ? br_nf_forward_finish+0x1f/0x95 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404158] [<ffffffffa02486db>] ? br_parse_ip_options+0x3d/0x19a [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404164] [<ffffffffa0248a67>] ? br_nf_forward_ip+0x1c0/0x1d4 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404167] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:30 172.30.1.2 [ 427.404171] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404176] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404178] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:30 172.30.1.2 [ 427.404183] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404187] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404192] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404196] [<ffffffffa024385e>] ? NF_HOOK.constprop.8+0x3c/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404200] [<ffffffffa02439f2>] ? br_forward+0x16/0x5a [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404205] [<ffffffffa024451b>] ? br_handle_frame_finish+0x1a1/0x20f [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404210] [<ffffffffa02485ff>] ? br_nf_pre_routing_finish+0x1d0/0x1dd [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404215] [<ffffffffa0247ff0>] ? NF_HOOK_THRESH+0x3b/0x55 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404221] [<ffffffffa0248f58>] ? br_nf_pre_routing+0x3e8/0x3f5 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404223] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:30 172.30.1.2 [ 427.404226] [<ffffffff8128ad1d>] ? netif_receive_skb+0x63/0x69
May 14 14:14:30 172.30.1.2 [ 427.404229] [<ffffffff8128b1ef>] ? napi_gro_receive+0x1d/0x2b
May 14 14:14:30 172.30.1.2 [ 427.404234] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404237] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:30 172.30.1.2 [ 427.404241] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404246] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404251] [<ffffffffa0244360>] ? NF_HOOK.constprop.4+0x3c/0x56 [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404254] [<ffffffff810135ad>] ? paravirt_read_tsc+0x5/0x8
May 14 14:14:30 172.30.1.2 [ 427.404256] [<ffffffff81013622>] ? read_tsc+0x5/0x14
May 14 14:14:30 172.30.1.2 [ 427.404261] [<ffffffffa024473c>] ? br_handle_frame+0x1b3/0x1cb [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404265] [<ffffffffa0244589>] ? br_handle_frame_finish+0x20f/0x20f [bridge]
May 14 14:14:30 172.30.1.2 [ 427.404269] [<ffffffff812892c0>] ? __netif_receive_skb+0x324/0x41f
May 14 14:14:30 172.30.1.2 [ 427.404272] [<ffffffff81289427>] ? process_backlog+0x6c/0x123
May 14 14:14:30 172.30.1.2 [ 427.404275] [<ffffffff8128b30d>] ? net_rx_action+0xa1/0x1af
May 14 14:14:30 172.30.1.2 [ 427.404277] [<ffffffff81036fab>] ? test_tsk_need_resched+0xa/0x13
May 14 14:14:30 172.30.1.2 [ 427.404280] [<ffffffff8104be30>] ? __do_softirq+0xb9/0x177
May 14 14:14:30 172.30.1.2 [ 427.404283] [<ffffffff8135046c>] ? call_softirq+0x1c/0x30
May 14 14:14:30 172.30.1.2 [ 427.404285] <EOI> [<ffffffff8100f8e5>] ? do_softirq+0x3c/0x7b
May 14 14:14:30 172.30.1.2 [ 427.404289] [<ffffffff8128b5fd>] ? netif_rx_ni+0x1e/0x27
May 14 14:14:30 172.30.1.2 [ 427.404292] [<ffffffffa02a7721>] ? tun_get_user+0x39a/0x3c2 [tun]
May 14 14:14:30 172.30.1.2 [ 427.404296] [<ffffffffa02a7a66>] ? tun_chr_poll+0xcd/0xcd [tun]
May 14 14:14:30 172.30.1.2 [ 427.404299] [<ffffffffa02a7ac4>] ? tun_chr_aio_write+0x5e/0x79 [tun]
May 14 14:14:30 172.30.1.2 [ 427.404302] [<ffffffff810f9594>] ? do_sync_readv_writev+0x9a/0xd7
May 14 14:14:30 172.30.1.2 [ 427.404305] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:30 172.30.1.2 [ 427.404307] [<ffffffff810f8c16>] ? do_sync_read+0xab/0xe3
May 14 14:14:30 172.30.1.2 [ 427.404310] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:30 172.30.1.2 [ 427.404313] [<ffffffff811626a1>] ? security_file_permission+0x16/0x2d
May 14 14:14:30 172.30.1.2 [ 427.404316] [<ffffffff810f97f8>] ? do_readv_writev+0xaf/0x11c
May 14 14:14:30 172.30.1.2 [ 427.404319] [<ffffffff8112ab7e>] ? eventfd_ctx_read+0x162/0x174
May 14 14:14:30 172.30.1.2 [ 427.404322] [<ffffffff8103f3ff>] ? try_to_wake_up+0x197/0x197
May 14 14:14:30 172.30.1.2 [ 427.404325] [<ffffffff810f99cd>] ? sys_writev+0x45/0x90
May 14 14:14:30 172.30.1.2 [ 427.404327] [<ffffffff8134e212>] ? system_call_fastpath+0x16/0x1b
May 14 14:14:30 172.30.1.2 [ 427.404329] ---[ end trace 438338d42c34dda1 ]---
May 14 14:14:30 172.30.1.2 [ 428.546182] 12
May 14 14:14:30 172.30.1.2 8a
May 14 14:14:30 172.30.1.2 43
May 14 14:14:30 172.30.1.2 7d
May 14 14:14:30 172.30.1.2 83
May 14 14:14:30 172.30.1.2 e0
May 14 14:14:30 172.30.1.2 f8
May 14 14:14:30 172.30.1.2 83
May 14 14:14:30 172.30.1.2 c8
May 14 14:14:30 172.30.1.2
May 14 14:14:30 172.30.1.2 [ 428.554377] RIP
May 14 14:14:30 172.30.1.2 [ 428.568728] RSP <ffff88042fc03b18>
May 14 14:14:30 172.30.1.2 [ 428.575736] CR2: 0000000000000018
May 14 14:14:30 172.30.1.2 [ 428.582882] ---[ end trace 438338d42c34dda2 ]---
May 14 14:14:30 172.30.1.2 [ 428.597671] Kernel panic - not syncing: Fatal exception in interrupt
May 14 14:14:30 172.30.1.2 [ 428.610756] Pid: 3831, comm: kvm Tainted: G D W 3.2.0-2-amd64 #1
May 14 14:14:30 172.30.1.2 [ 428.624515] Call Trace:
May 14 14:14:30 172.30.1.2 [ 428.629824] <IRQ>
May 14 14:14:30 172.30.1.2 [ 428.641612] [<ffffffff8134a086>] ? oops_end+0xa9/0xb6
May 14 14:14:30 172.30.1.2 [ 428.652191] [<ffffffff81342487>] ? no_context+0x1ff/0x20e
May 14 14:14:30 172.30.1.2 [ 428.663450] [<ffffffff81052262>] ? __mod_timer+0x139/0x14b
May 14 14:14:30 172.30.1.2 [ 428.674900] [<ffffffff8134c099>] ? do_page_fault+0x1a8/0x337
May 14 14:14:30 172.30.1.2 [ 428.686700] [<ffffffffa03e0f06>] ? ip_vs_conn_put+0x28/0x32 [ip_vs]
May 14 14:14:30 172.30.1.2 [ 428.699763] [<ffffffffa03e30e0>] ? ip_vs_out+0x2bd/0x432 [ip_vs]
May 14 14:14:30 172.30.1.2 [ 428.712251] [<ffffffff8128c0e2>] ? dev_hard_start_xmit+0x3fc/0x543
May 14 14:14:30 172.30.1.2 [ 428.725155] [<ffffffff813497f5>] ? page_fault+0x25/0x30
May 14 14:14:30 172.30.1.2 [ 428.736101] [<ffffffffa0248308>] ? nf_bridge_update_protocol+0x20/0x20 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.751403] [<ffffffffa0248336>] ? br_nf_forward_finish+0x2e/0x95 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.765714] [<ffffffffa0248327>] ? br_nf_forward_finish+0x1f/0x95 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.779943] [<ffffffffa02486db>] ? br_parse_ip_options+0x3d/0x19a [bridge]
May 14 14:14:30 172.30.1.2 [ 428.794381] [<ffffffffa0248a67>] ? br_nf_forward_ip+0x1c0/0x1d4 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.808378] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:30 172.30.1.2 [ 428.819313] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.832151] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:30 172.30.1.2 [ 428.845076] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:30 172.30.1.2 [ 428.856526] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.869365] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.883411] [<ffffffffa0243918>] ? __br_deliver+0xa0/0xa0 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.896251] [<ffffffffa024385e>] ? NF_HOOK.constprop.8+0x3c/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.910400] [<ffffffffa02439f2>] ? br_forward+0x16/0x5a [bridge]
May 14 14:14:31 172.30.1.2 [ 428.922898] [<ffffffffa024451b>] ? br_handle_frame_finish+0x1a1/0x20f [bridge]
May 14 14:14:31 172.30.1.2 [ 428.937870] [<ffffffffa02485ff>] ? br_nf_pre_routing_finish+0x1d0/0x1dd [bridge]
May 14 14:14:31 172.30.1.2 [ 428.953341] [<ffffffffa0247ff0>] ? NF_HOOK_THRESH+0x3b/0x55 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.966524] [<ffffffffa0248f58>] ? br_nf_pre_routing+0x3e8/0x3f5 [bridge]
May 14 14:14:31 172.30.1.2 [ 428.980827] [<ffffffff812ac039>] ? nf_iterate+0x41/0x77
May 14 14:14:31 172.30.1.2 [ 428.991795] [<ffffffff8128ad1d>] ? netif_receive_skb+0x63/0x69
May 14 14:14:31 172.30.1.2 [ 429.003984] [<ffffffff8128b1ef>] ? napi_gro_receive+0x1d/0x2b
May 14 14:14:31 172.30.1.2 [ 429.016105] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 429.030151] [<ffffffff812ac0d7>] ? nf_hook_slow+0x68/0x101
May 14 14:14:31 172.30.1.2 [ 429.041651] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 429.055762] [<ffffffffa024437a>] ? NF_HOOK.constprop.4+0x56/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 429.069893] [<ffffffffa0244360>] ? NF_HOOK.constprop.4+0x3c/0x56 [bridge]
May 14 14:14:31 172.30.1.2 [ 429.084064] [<ffffffff810135ad>] ? paravirt_read_tsc+0x5/0x8
May 14 14:14:31 172.30.1.2 [ 429.095991] [<ffffffff81013622>] ? read_tsc+0x5/0x14
May 14 14:14:31 172.30.1.2 [ 429.106499] [<ffffffffa024473c>] ? br_handle_frame+0x1b3/0x1cb [bridge]
May 14 14:14:31 172.30.1.2 [ 429.120298] [<ffffffffa0244589>] ? br_handle_frame_finish+0x20f/0x20f [bridge]
May 14 14:14:31 172.30.1.2 [ 429.135325] [<ffffffff812892c0>] ? __netif_receive_skb+0x324/0x41f
May 14 14:14:31 172.30.1.2 [ 429.148167] [<ffffffff81289427>] ? process_backlog+0x6c/0x123
May 14 14:14:31 172.30.1.2 [ 429.160129] [<ffffffff8128b30d>] ? net_rx_action+0xa1/0x1af
May 14 14:14:31 172.30.1.2 [ 429.171840] [<ffffffff81036fab>] ? test_tsk_need_resched+0xa/0x13
May 14 14:14:31 172.30.1.2 [ 429.184495] [<ffffffff8104be30>] ? __do_softirq+0xb9/0x177
May 14 14:14:31 172.30.1.2 [ 429.195945] [<ffffffff8135046c>] ? call_softirq+0x1c/0x30
May 14 14:14:31 172.30.1.2 [ 429.207337] <EOI>
May 14 14:14:31 172.30.1.2 [ 429.219918] [<ffffffff8128b5fd>] ? netif_rx_ni+0x1e/0x27
May 14 14:14:31 172.30.1.2 [ 429.231115] [<ffffffffa02a7721>] ? tun_get_user+0x39a/0x3c2 [tun]
May 14 14:14:31 172.30.1.2 [ 429.243773] [<ffffffffa02a7a66>] ? tun_chr_poll+0xcd/0xcd [tun]
May 14 14:14:31 172.30.1.2 [ 429.256130] [<ffffffffa02a7ac4>] ? tun_chr_aio_write+0x5e/0x79 [tun]
May 14 14:14:31 172.30.1.2 [ 429.269368] [<ffffffff810f9594>] ? do_sync_readv_writev+0x9a/0xd7
May 14 14:14:31 172.30.1.2 [ 429.282027] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:31 172.30.1.2 [ 429.293475] [<ffffffff810f8c16>] ? do_sync_read+0xab/0xe3
May 14 14:14:31 172.30.1.2 [ 429.304745] [<ffffffff810363c7>] ? should_resched+0x5/0x23
May 14 14:14:31 172.30.1.2 [ 429.316190] [<ffffffff811626a1>] ? security_file_permission+0x16/0x2d
May 14 14:14:31 172.30.1.2 [ 429.329545] [<ffffffff810f97f8>] ? do_readv_writev+0xaf/0x11c
May 14 14:14:31 172.30.1.2 [ 429.341562] [<ffffffff8112ab7e>] ? eventfd_ctx_read+0x162/0x174
May 14 14:14:31 172.30.1.2 [ 429.353976] [<ffffffff8103f3ff>] ? try_to_wake_up+0x197/0x197
May 14 14:14:31 172.30.1.2 [ 429.365984] [<ffffffff810f99cd>] ? sys_writev+0x45/0x90
May 14 14:14:31 172.30.1.2 [ 429.377080] [<ffffffff8134e212>] ? system_call_fastpath+0x16/0x1b

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