From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263946AbTKJQWh (ORCPT ); Mon, 10 Nov 2003 11:22:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263958AbTKJQWh (ORCPT ); Mon, 10 Nov 2003 11:22:37 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:48533 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S263946AbTKJQWf (ORCPT ); Mon, 10 Nov 2003 11:22:35 -0500 Date: Mon, 10 Nov 2003 17:18:59 +0100 From: Jens Axboe To: Csaba Halasz Cc: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: ide-cd panic with faulty disk and DMA enabled (2.6.0-test9) Message-ID: <20031110161859.GC4451@suse.de> References: <9B4E9DA25A3DD41189B000508B5C0CEE2142AD@BOMBA> <20031110153948.GO32637@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031110153948.GO32637@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 10 2003, Jens Axboe wrote: > On Mon, Nov 10 2003, Csaba Halasz wrote: > > Hi! > > > > I have a DVD+RW disk that crashes the kernel every time I try to > > read a particular area using my DVD-ROM drive with DMA enabled. > > (The writer unit can read it back without any problems though.) > > > > IMHO the crash seems to be of a more general nature, > > not related to DVD+RW. > > > > Linux version 2.6.0-test9 (hcs@defiant) (gcc version 3.3 (Debian)) #1 Sun Nov 9 14:08:41 CET 2003 > > Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > > NFORCE: IDE controller at PCI slot 0000:00:09.0 > > NFORCE: chipset revision 195 > > NFORCE: not 100%% native mode: will probe irqs later > > AMD_IDE: Bios didn't set cable bits correctly. Enabling workaround. > > AMD_IDE: Bios didn't set cable bits correctly. Enabling workaround. > > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > > AMD_IDE: 0000:00:09.0 (rev c3) UDMA100 controller on pci0000:00:09.0 > > ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:DMA > > ide1: BM-DMA at 0xb808-0xb80f, BIOS settings: hdc:DMA, hdd:DMA > > hda: Maxtor 5T040H4, ATA DISK drive > > hdb: _NEC DVD+RW ND-1100A, ATAPI CD/DVD-ROM drive > > Using anticipatory io scheduler > > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > > hdc: Maxtor 5T040H4, ATA DISK drive > > hdd: MATSHITADVD-ROM SR-8586, ATAPI CD/DVD-ROM drive > > ide1 at 0x170-0x177,0x376 on irq 15 > > end_request: I/O error, dev hdb, sector 0 > > hdb: ATAPI 40X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33) > > Uniform CD-ROM driver Revision: 3.12 > > end_request: I/O error, dev hdd, sector 0 > > hdd: ATAPI 123X DVD-ROM drive, 512kB Cache, UDMA(33) > > hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } > > hdd: media error (bad sector): error=0x34 > > end_request: I/O error, dev hdd, sector 7043320 > > Buffer I/O error on device hdd, logical block 880415 > > hdd: DMA timeout retry > > hdd: timeout waiting for DMA > > > > Unable to handle kernel paging request at virtual address ddff7f74 > > printing eip: > > c0249af6 > > *pde = 00076067 > > *pte = 1dff7000 > > Oops: 0000 [#1] > > CPU: 0 > > EIP: 0060:[] Not tainted > > Could you build the same kernel with CONFIG_DEBUG_INFO enabled, and then > do a > > # gdb vmlinux > # l *0xc0249af6 > > for me? Thanks. You even did so, further down. Sorry, should have paid more attention. I'll take a look at it. -- Jens Axboe