Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751643AbWADJ3M (ORCPT ); Wed, 4 Jan 2006 04:29:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751639AbWADJ3M (ORCPT ); Wed, 4 Jan 2006 04:29:12 -0500 Received: from tower.bj-ig.de ([194.127.182.2]:34719 "EHLO fs.bj-ig.de") by vger.kernel.org with ESMTP id S1030187AbWADJ3I (ORCPT ); Wed, 4 Jan 2006 04:29:08 -0500 Message-ID: <43BB9568.6010000@bj-ig.de> Date: Wed, 04 Jan 2006 10:29:12 +0100 From: =?ISO-8859-1?Q?Ralf_M=FCller?= User-Agent: Mozilla Thunderbird 1.0.7 (Macintosh/20050923) X-Accept-Language: de-DE, de, en-us, en MIME-Version: 1.0 To: Albert Lee CC: linux-kernel@vger.kernel.org, jgarzik@pobox.com, linux-ide@vger.kernel.org Subject: Re: Kernel Oops with 2.6.15 References: <43BA8AEE.8010608@bj-ig.de> <43BB3CBA.5010908@tw.ibm.com> In-Reply-To: <43BB3CBA.5010908@tw.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Delivered-For: jgarzik@pobox.com X-Spambayes-Classification: ham; 0.04 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1789 Lines: 41 Albert Lee schrieb: > It looks like the command is running in PIO polling thread. > The timeout handler is called and the qc is cleared. > So, the PIO polling thread got NULL qc. > > Could you post more trace before the timeout occurs, thanks, Sure. Here it is: Jan 3 15:21:32 DatenGrab kernel: ata1: command timeout Jan 3 15:21:32 DatenGrab kernel: ATA: abnormal status 0xFF on port 0xE006821C Jan 3 15:21:32 DatenGrab kernel: ata1: translated ATA stat/err 0xff/00 to SCSI SK/ASC/ASCQ 0xb/47/00 Jan 3 15:21:32 DatenGrab kernel: ata1: status=0xff { Busy } Jan 3 15:21:32 DatenGrab kernel: ATA: abnormal status 0xFF on port 0xE006821C Jan 3 15:21:32 DatenGrab kernel: ATA: abnormal status 0xFF on port 0xE006821C Jan 3 15:21:32 DatenGrab kernel: ATA: abnormal status 0xFF on port 0xE006821C Jan 3 15:21:32 DatenGrab kernel: ATA: abnormal status 0xFF on port 0xE006821C Jan 3 15:21:35 DatenGrab kernel: ata1: unknown timeout, cmd 0xb0 stat 0xff Jan 3 15:21:35 DatenGrab kernel: ata1: translated ATA stat/err 0xff/00 to SCSI SK/ASC/ASCQ 0xb/47/00 Jan 3 15:21:35 DatenGrab kernel: ata1: status=0xff { Busy } Jan 3 15:21:35 DatenGrab kernel: Assertion failed! qc != NULL,drivers/scsi/libata-core.c,ata_pio_block,line=3216 Jan 3 15:21:35 DatenGrab kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000014 Jan 3 15:21:35 DatenGrab kernel: printing eip: Jan 3 15:21:35 DatenGrab kernel: e02d9a3e Jan 3 15:21:35 DatenGrab kernel: *pde = 00000000 Jan 3 15:21:35 DatenGrab kernel: Oops: 0000 [#1] - 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/