From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266775AbUG1EbM (ORCPT ); Wed, 28 Jul 2004 00:31:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266777AbUG1EbM (ORCPT ); Wed, 28 Jul 2004 00:31:12 -0400 Received: from hierophant.serpentine.com ([66.92.13.71]:55721 "EHLO demesne.serpentine.com") by vger.kernel.org with ESMTP id S266775AbUG1Eax (ORCPT ); Wed, 28 Jul 2004 00:30:53 -0400 Subject: Recent 2.6 kernels can't read an entire ATAPI CD or DVD From: "Bryan O'Sullivan" To: axboe@suse.de, linux-kernel@vger.kernel.org Content-Type: text/plain Date: Tue, 27 Jul 2004 21:30:52 -0700 Message-Id: <1090989052.3098.6.camel@camp4.serpentine.com> Mime-Version: 1.0 X-Mailer: Evolution 1.5.9.1 (1.5.9.1-2) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, Jens - I'm having trouble reading a DVD or CD image from an ATAPI drive that identifies itself as a 'LITEON DVD-ROM LTD163D'. This is with vanilla 2.6.7 on a system running Fedora Core 2. Regardless of what I do, I get the same errors: Jul 27 21:18:30 camp4 kernel: hdc: command error: status=0x51 { DriveReady SeekComplete Error } Jul 27 21:18:30 camp4 kernel: hdc: command error: error=0x54 Jul 27 21:18:30 camp4 kernel: end_request: I/O error, dev hdc, sector 837264 Jul 27 21:18:30 camp4 kernel: Buffer I/O error on device hdc, logical block 104658 I have ide-cd compiled as a module. This occurs whether or not ide-cd is loaded (I don't have ide-scsi enabled), and whether or not I have DMA turned on. I don't believe there is anything wrong with the drive, as it used to work OK on 2.4, 2.5, and early 2.6 kernels, and I believe the media to be fine, as the disk in question plays back on a Mac and a DVD player. Googling for "error=0x54", I see a lot of reports of this kind of problem, but never with any resolutions, so I'm stumped. Is there any information I can give you that would help? Thanks,