Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752621AbYJ0JEq (ORCPT ); Mon, 27 Oct 2008 05:04:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751582AbYJ0JEf (ORCPT ); Mon, 27 Oct 2008 05:04:35 -0400 Received: from smtp-vbr9.xs4all.nl ([194.109.24.29]:3336 "EHLO smtp-vbr9.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750965AbYJ0JEe (ORCPT ); Mon, 27 Oct 2008 05:04:34 -0400 Date: Mon, 27 Oct 2008 10:04:27 +0100 From: Folkert van Heusden To: linux-kernel@vger.kernel.org Subject: [2.6.26] OOPS in elv_next_request Message-ID: <20081027090426.GN8318@vanheusden.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Reply-By: Sat Oct 25 11:44:16 CEST 2008 X-Message-Flag: PGP key-id: 0x1f28d8ae - consider encrypting your e-mail to me with PGP! User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3366 Lines: 58 Hi, While running my http://vanheusden.com/pyk/ script (which randomly inserts and removes modules) I triggered the folllowing oops in a 2.6.26 kernel on a Celeron 400 (Mendocino): [ 4768.664021] Floppy drive(s): fd0 is 1.44M [ 4768.682751] FDC 0 is a post-1991 82077 [ 4768.717031] work still pending [ 4768.718486] BUG: unable to handle kernel NULL pointer dereference at 00000010 [ 4768.718711] IP: [] elv_next_request+0x17e/0x18e [ 4768.718898] *pde = 00000000 [ 4768.719035] Oops: 0000 [#1] SMP [ 4768.719210] Modules linked in: floppy(-) pcspkr gspca shpchp cdrom battery ata_generic libata pci_hotplug gameport snd_rawmidi parport hwmon_vid scsi_mod videodev v4l1_compat dock ipv6 loop snd_seq_device snd_timer snd soundcore via_agp agpgart evdev ext3 jbd mbcache ide_disk via82cxxx ide_pci_generic ide_core 8139too usbcore 8139cp mii processor thermal_sys [last unloaded: floppy] [ 4768.720058] [ 4768.720058] Pid: 6, comm: events/0 Not tainted (2.6.26-1-686 #1) [ 4768.720058] EIP: 0060:[] EFLAGS: 00010046 CPU: 0 [ 4768.720058] EIP is at elv_next_request+0x17e/0x18e [ 4768.720058] EAX: c872c078 EBX: c940a820 ECX: 00000000 EDX: 00000000 [ 4768.720058] ESI: c872c078 EDI: ca964f48 EBP: 00000000 ESP: c943ff50 [ 4768.720058] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 4768.720058] Process events/0 (pid: 6, ti=c943e000 task=c942a460 task.ti=c943e000) [ 4768.720058] Stack: c940a820 c940a820 ca96b494 ca964f48 ca964f91 c58ce5c0 c942a460 c02b7ec7 [ 4768.720058] c9443500 4bcc15bb 00000456 c942a5ec c1148fa0 00000000 c940a820 ca96b494 [ 4768.720058] 000018e7 00000000 c940a820 ca96b494 ca964f48 00000000 c012edee c940a820 [ 4768.720058] Call Trace: [ 4768.720058] [] redo_fd_request+0x0/0xc5d [floppy] [ 4768.720058] [] redo_fd_request+0x49/0xc5d [floppy] [ 4768.720058] [] schedule+0x63d/0x66f [ 4768.720058] [] redo_fd_request+0x0/0xc5d [floppy] [ 4768.720058] [] run_workqueue+0x74/0xf2 [ 4768.720058] [] worker_thread+0x0/0xbd [ 4768.720058] [] worker_thread+0xb3/0xbd [ 4768.720058] [] autoremove_wake_function+0x0/0x2d [ 4768.720058] [] kthread+0x38/0x5d [ 4768.720058] [] kthread+0x0/0x5d [ 4768.720058] [] kernel_thread_helper+0x7/0x10 [ 4768.720058] ======================= [ 4768.720058] Code: 06 89 e2 89 04 24 89 f0 e8 a9 37 00 00 85 c0 74 0d 8b 1c 24 85 db 0f 85 9e fe ff ff eb 16 39 36 75 dd 8b 46 0c 31 d2 8b 08 89 f0 51 10 85 c0 75 ec 31 db 5f 89 d8 5b 5e 5f c3 55 89 cd 57 89 [ 4768.720058] EIP: [] elv_next_request+0x17e/0x18e SS:ESP 0068:c943ff50 [ 4768.720058] ---[ end trace 6a50caff78c47574 ]--- [ 4769.658313] Floppy drive(s): fd0 is 1.44M [ 4789.656060] no cont in shutdown! Folkert van Heusden -- MultiTail ? uno flexible tool per seguire di logfiles e effettuazione di commissioni. Feltrare, provedere da colore, merge, 'diff-view', etc. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com -- 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/