Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754529Ab1EDRFw (ORCPT ); Wed, 4 May 2011 13:05:52 -0400 Received: from s040.panelboxmanager.com ([72.55.186.60]:35280 "EHLO s040.panelboxmanager.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751916Ab1EDRFv (ORCPT ); Wed, 4 May 2011 13:05:51 -0400 X-Greylist: delayed 3742 seconds by postgrey-1.27 at vger.kernel.org; Wed, 04 May 2011 13:05:50 EDT Message-ID: <4DC178D3.6030308@techboom.com> Date: Wed, 04 May 2011 12:03:31 -0400 From: TB User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Thunderbird/3.1.8 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Divide error in bictcp_cong_avoid ? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - s040.panelboxmanager.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - techboom.com X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6599 Lines: 149 We're having this issue sporadically on a few servers and this is the backtrace we get from netconsole. [28522.642419] divide error: 0000 [#1] SMP [28522.642457] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/vendor [28522.642504] CPU 0 [28522.642511] Modules linked in: i2c_i801 i2c_core evdev button [28522.642570] [28522.642590] Pid: 0, comm: swapper Not tainted 2.6.38.5 #6 Supermicro X8DTH-i/6/iF/6F / X8DTH [28522.642651] RIP: 0010:[] [] bictcp_cong_avoid+0x21a/0x247 [28522.642708] RSP: 0018:ffff8800bf403a90 EFLAGS: 00010202 [28522.642735] RAX: 0000000000000010 RBX: ffff880352aa6400 RCX: 0000000000000000 [28522.642765] RDX: 0000000000000000 RSI: ffff880352aa67c0 RDI: 0000000000001607 [28522.642795] RBP: 000000007caa5a1b R08: 00000000000035c2 R09: 00000000000000e6 [28522.642825] R10: ffff88003d499c00 R11: ffff880109831b00 R12: ffffffff817cecd0 [28522.642855] R13: 0000000000000004 R14: 000000000001001b R15: 0000000000000123 [28522.642886] FS: 0000000000000000(0000) GS:ffff8800bf400000(0000) knlGS:0000000000000000 [28522.642932] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [28522.642959] CR2: 00007fb4c6ffd000 CR3: 000000042e4a1000 CR4: 00000000000006f0 [28522.642990] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [28522.643020] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [28522.643050] Process swapper (pid: 0, threadinfo ffffffff8176c000, task ffffffff81777020) [28522.643095] Stack: [28522.643116] ffff880352aa6400 ffffffff817cecd0 0000000000000004 0000000000000406 [28522.643171] ffff880352aa6400 ffffffff814e3dc5 000000000000111c ffff88022a9b3200 [28522.643226] 0000000000000000 7caa5a1b7caa4ec3 0000000000000000 0000000000000000 [28522.643281] Call Trace: [28522.643303] [28522.643330] [] ? tcp_ack+0x18b5/0x1a89 [28522.643359] [] ? tcp_rcv_established+0xd1/0xa13 [28522.643389] [] ? tcp_v4_do_rcv+0x1b2/0x382 [28522.643418] [] ? nf_iterate+0x40/0x78 [28522.643446] [] ? tcp_v4_rcv+0x484/0x797 [28522.643475] [] ? ip_local_deliver_finish+0xab/0x139 [28522.643505] [] ? __netif_receive_skb+0x31c/0x349 [28522.643535] [] ? netif_receive_skb+0x67/0x6d [28522.643564] [] ? napi_gro_receive+0x9d/0xab [28522.643592] [] ? napi_skb_finish+0x1c/0x31 [28522.643623] [] ? igb_poll+0x7d5/0xb2e [28522.643653] [] ? blk_run_queue+0x23/0x37 [28522.643683] [] ? scsi_run_queue+0x2ee/0x381 [28522.643712] [] ? scsi_io_completion+0x3e0/0x409 [28522.643741] [] ? net_rx_action+0xa7/0x212 [28522.643771] [] ? __do_softirq+0xbe/0x184 [28522.643800] [] ? call_softirq+0x1c/0x28 [28522.643828] [] ? do_softirq+0x31/0x63 [28522.643856] [] ? irq_exit+0x36/0x78 [28522.643883] [] ? do_IRQ+0x98/0xae [28522.643912] [] ? ret_from_intr+0x0/0xe [28522.643938] [28522.643963] [] ? mwait_idle+0xb9/0xf3 [28522.643991] [] ? cpu_idle+0x57/0x8d [28522.644019] [] ? start_kernel+0x34e/0x35a [28522.644048] [] ? x86_64_start_kernel+0xf3/0xf9 [28522.644075] Code: 39 c9 76 18 44 29 c9 31 d2 44 89 c8 f7 f1 39 83 c0 03 00 00 76 06 89 83 c0 03 00 00 8b 83 c0 03 00 00 31 d2 c1 e0 04 0f b7 4e 2c f7> f1 ba 01 00 00 00 85 c0 0f 45 d0 89 93 c0 03 00 00 8b b3 c0 [28522.644338] RIP [] bictcp_cong_avoid+0x21a/0x247 [28522.644371] RSP [28522.644733] ---[ end trace 9db294ef7ff3a7b5 ]--- [28522.644800] Kernel panic - not syncing: Fatal exception in interrupt [28522.644871] Pid: 0, comm: swapper Tainted: G D 2.6.38.5 #6 [28522.644942] Call Trace: [28522.645012] [] ? panic+0x9d/0x1a0 [28522.645131] [] ? ret_from_intr+0x0/0xe [28522.645200] [] ? kmsg_dump+0x46/0xec [28522.645268] [] ? oops_end+0x9f/0xac [28522.645335] [] ? do_divide_error+0x7f/0x89 [28522.645404] [] ? bictcp_cong_avoid+0x21a/0x247 [28522.645473] [] ? dev_queue_xmit+0x4a4/0x4b2 [28522.645545] [] ? ip_queue_xmit+0x2e9/0x32f [28522.645614] [] ? divide_error+0x15/0x20 [28522.645685] [] ? bictcp_cong_avoid+0x21a/0x247 [28522.645754] [] ? tcp_ack+0x18b5/0x1a89 [28522.645823] [] ? tcp_rcv_established+0xd1/0xa13 [28522.645892] [] ? tcp_v4_do_rcv+0x1b2/0x382 [28522.645961] [] ? nf_iterate+0x40/0x78 [28522.646029] [] ? tcp_v4_rcv+0x484/0x797 [28522.646097] [] ? ip_local_deliver_finish+0xab/0x139 [28522.646167] [] ? __netif_receive_skb+0x31c/0x349 [28522.646240] [] ? netif_receive_skb+0x67/0x6d [28522.646308] [] ? napi_gro_receive+0x9d/0xab [28522.646377] [] ? napi_skb_finish+0x1c/0x31 [28522.646445] [] ? igb_poll+0x7d5/0xb2e [28522.646513] [] ? blk_run_queue+0x23/0x37 [28522.646582] [] ? scsi_run_queue+0x2ee/0x381 [28522.646651] [] ? scsi_io_completion+0x3e0/0x409 [28522.646721] [] ? net_rx_action+0xa7/0x212 [28522.646791] [] ? __do_softirq+0xbe/0x184 [28522.646884] [] ? call_softirq+0x1c/0x28 [28522.646953] [] ? do_softirq+0x31/0x63 [28522.647021] [] ? irq_exit+0x36/0x78 [28522.647089] [] ? do_IRQ+0x98/0xae [28522.647164] [] ? ret_from_intr+0x0/0xe [28522.647239] [] ? mwait_idle+0xb9/0xf3 [28522.647354] [] ? cpu_idle+0x57/0x8d [28522.647422] [] ? start_kernel+0x34e/0x35a [28522.647491] [] ? x86_64_start_kernel+0xf3/0xf9 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/