Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750959AbZICEAP (ORCPT ); Thu, 3 Sep 2009 00:00:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750709AbZICEAO (ORCPT ); Thu, 3 Sep 2009 00:00:14 -0400 Received: from gherkin.frus.com ([192.158.254.49]:42102 "EHLO gherkin.frus.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750695AbZICEAN (ORCPT ); Thu, 3 Sep 2009 00:00:13 -0400 X-Greylist: delayed 1229 seconds by postgrey-1.27 at vger.kernel.org; Thu, 03 Sep 2009 00:00:13 EDT Date: Wed, 2 Sep 2009 22:39:45 -0500 From: Bob Tracy To: linux-kernel@vger.kernel.org Subject: [BUG] 2.6.31-rc8 readcd Oops Message-ID: <20090903033945.GA20755@gherkin.frus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4185 Lines: 82 Sorry to catch this so late in the -rc cycle, but I haven't burned any CDs in a *long* time... Fired up "xcdroast" to duplicate a CD, and promptly got the following Oops: BUG: unable to handle kernel NULL pointer dereference at 00000004 IP: [] __free_pages+0x10/0x59 *pde = 00000000 Oops: 0002 [#1] PREEMPT last sysfs file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/resource Modules linked in: sg snd_seq_midi snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_event snd_seq_midi_emul snd_seq snd_emu10k1 snd_rawmidi snd_ac97_codec ac97_bus usbhid snd_pcm snd_seq_device snd_timer snd_page_alloc snd_util_mem snd_hwdep snd soundcore af_packet ipv6 uhci_hcd ehci_hcd usbcore binfmt_misc Pid: 20682, comm: readcd Not tainted (2.6.31-rc8 #1) EIP: 0060:[] EFLAGS: 00010246 CPU: 0 EIP is at __free_pages+0x10/0x59 EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000002 ESI: 00000004 EDI: 00004000 EBP: 00004000 ESP: d3b61ddc DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 Process readcd (pid: 20682, ti=d3b60000 task=d4cd6500 task.ti=d3b60000) Stack: 85ab3aa0 d882aa21 ffffc000 d390f01c 00000001 00000080 00000002 00004220 <0> 00008000 00008000 85ab3aa0 00008000 d390f01c d390f000 00000000 d882aa9d <0> 85ab3aa0 d390f000 d4d89de0 00000246 d882bd33 d39e1420 00000000 d3b61e6c Call Trace: [] ? sg_build_indirect+0x243/0x272 [sg] [] ? sg_build_reserve+0x4d/0x78 [sg] [] ? sg_open+0x33b/0x415 [sg] [] ? exact_match+0x0/0x23 [] ? chrdev_open+0x16b/0x197 [] ? chrdev_open+0x0/0x197 [] ? __dentry_open+0x143/0x23e [] ? nameidata_to_filp+0x36/0x5b [] ? do_filp_open+0x441/0x7e5 [] ? __wake_up+0x38/0x84 [] ? queue_work_on+0x32/0x4d [] ? do_sys_open+0x5a/0x107 [] ? sys_open+0x2c/0x43 [] ? syscall_call+0x7/0xb Code: 31 d2 8b 14 24 65 33 15 14 00 00 00 74 05 e8 4c 49 fc ff 59 31 d2 e9 d1 fd ff ff 83 ec 04 89 c1 65 a1 14 00 00 00 89 04 24 31 c0 49 04 0f 94 c0 84 c0 74 2c 85 d2 75 14 8b 04 24 65 33 05 14 EIP: [] __free_pages+0x10/0x59 SS:ESP 0068:d3b61ddc CR2: 0000000000000004 ---[ end trace 80d0523f259c41c8 ]--- This is a SCSI system. The PIONEER CD-ROM drive below is the one that was being accessed when the Oops occurred. The HA is an Adaptec 2930U2 (aic7xxx driver). Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: WDIGTL Model: WDE18300 ULTRA2 Rev: 1.30 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 01 Lun: 00 Vendor: SEAGATE Model: SX118273LC Rev: 6367 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 02 Lun: 00 Vendor: PIONEER Model: CD-ROM DR-U24X Rev: 1.01 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 03 Lun: 00 Vendor: YAMAHA Model: CRW2200S Rev: 1.0D Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 04 Lun: 00 Vendor: EXABYTE Model: EXB-82058VQANXR1 Rev: 07T0 Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 05 Lun: 00 Vendor: RICOH Model: IS60 Rev: 2R02 Type: Scanner ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 06 Lun: 00 Vendor: ARCHIVE Model: VIPER 2525 25462 Rev: -007 Type: Sequential-Access ANSI SCSI revision: 01 -- ------------------------------------------------------------------------ Bob Tracy | "Every normal man must be tempted at times to spit rct@frus.com | upon his hands, hoist the black flag, and begin | slitting throats." -- H.L. Mencken ------------------------------------------------------------------------ -- 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/