Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965500AbXJQPuv (ORCPT ); Wed, 17 Oct 2007 11:50:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762188AbXJQPun (ORCPT ); Wed, 17 Oct 2007 11:50:43 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:56778 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761586AbXJQPum (ORCPT ); Wed, 17 Oct 2007 11:50:42 -0400 Date: Wed, 17 Oct 2007 17:50:32 +0200 From: Ingo Molnar To: Jens Axboe Cc: linux-kernel@vger.kernel.org, Andrew Morton , Linus Torvalds Subject: Re: [bug] block subsystem related crash with latest -git Message-ID: <20071017155032.GA15215@elte.hu> References: <20071017154655.GA13394@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071017154655.GA13394@elte.hu> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.1.7-deb -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3479 Lines: 63 * Ingo Molnar wrote: > i tried another bootup with the same kernel and the crash did not > reoccur, so it seems to be spurious. This crash could be related to > the scsi or block merges done in the past few days - never saw this > before. managed to trigger it a second time, so it seems rather reproducible: [ 328.771333] kjournald starting. Commit interval 5 seconds [ 328.776963] EXT3 FS on sda5, internal journal [ 328.781172] EXT3-fs: mounted filesystem with ordered data mode. [ 329.689493] BUG: unable to handle kernel paging request at virtual address 7d516000 [ 329.696990] printing eip: 78406669 *pde = 00ddd027 *pte = 05516000 [ 329.703230] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 329.707390] [ 329.708863] Pid: 0, comm: swapper Not tainted (2.6.23 #45) [ 329.714321] EIP: 0060:[<78406669>] EFLAGS: 00010006 CPU: 0 [ 329.719787] EIP is at blk_rq_map_sg+0xb9/0x170 [ 329.724202] EAX: 2f6df000 EBX: 7d6af880 ECX: 34d55000 EDX: 005edbe0 [ 329.730441] ESI: 7d515ff0 EDI: 796d8be0 EBP: 00001000 ESP: 78a13db0 [ 329.736680] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 329.742054] Process swapper (pid: 0, ti=78a12000 task=7893c400 task.ti=78a12000) [ 329.749246] Stack: 00000020 7b520000 00002000 34d56000 7d515fe0 00000007 00000001 00000000 [ 329.757565] 7d6af800 01000000 7d515e00 7b522b94 7d84f58c 7b520000 784c89b5 7b520000 [ 329.765885] 784c843a 7d84f58c 7b520f20 7b522b94 7d84f58c 784e54a0 784f394b 00000000 [ 329.774204] Call Trace: [ 329.776804] [<784c89b5>] scsi_init_io+0x55/0xe0 [ 329.781398] [<784c843a>] scsi_get_cmd_from_req+0x2a/0x40 [ 329.786770] [<784e54a0>] sd_prep_fn+0x80/0x940 [ 329.791277] [<784f394b>] ata_bmdma_start+0xb/0x20 [ 329.796043] [<784ef344>] ata_qc_issue_prot+0x164/0x1e0 [ 329.801243] [<78405c63>] elv_dispatch_sort+0x23/0xe0 [ 329.806268] [<784057d0>] elv_next_request+0xa0/0x130 [ 329.811295] [<787715b8>] _spin_lock_irq+0x38/0x50 [ 329.816062] [<784c9af4>] scsi_request_fn+0x1e4/0x370 [ 329.821088] [<784097f6>] blk_run_queue+0x36/0x80 [ 329.825768] [<784c8370>] scsi_next_command+0x30/0x50 [ 329.830794] [<784c84fb>] scsi_end_request+0xab/0xe0 [ 329.835733] [<784c9249>] scsi_io_completion+0xa9/0x3d0 [ 329.840933] [<78135de7>] trace_hardirqs_on+0x67/0xb0 [ 329.845960] [<784068c5>] blk_done_softirq+0x45/0x80 [ 329.850900] [<784068f3>] blk_done_softirq+0x73/0x80 [ 329.855839] [<7811d3f3>] __do_softirq+0x53/0xb0 [ 329.860432] [<7811d4b8>] do_softirq+0x68/0x70 [ 329.864852] [<78105351>] do_IRQ+0x51/0x90 [ 329.868925] [<78135e1c>] trace_hardirqs_on+0x9c/0xb0 [ 329.873951] [<7810388e>] common_interrupt+0x2e/0x40 [ 329.878891] [<78100c55>] cpu_idle+0x35/0x60 [ 329.883138] [<78a14b35>] start_kernel+0x265/0x300 [ 329.887904] [<78a14380>] unknown_bootoption+0x0/0x1e0 [ 329.893016] ======================= [ 329.896570] Code: 05 c1 e1 0c 03 4a 08 8b 52 04 01 ca 89 54 24 0c 8b 3b 89 fa 29 c2 89 d0 c1 f8 05 c1 e0 0c 03 43 08 39 44 24 0c 0f 84 7e 00 00 00 <8b> 46 10 8d 56 10 a8 01 75 4c 89 3e 89 6e 0c 8b 43 08 89 46 04 [ 329.915375] EIP: [<78406669>] blk_rq_map_sg+0xb9/0x170 SS:ESP 0068:78a13db0 [ 329.922309] Kernel panic - not syncing: Fatal exception in interrupt Ingo - 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/