Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 27 Apr 2001 19:07:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 27 Apr 2001 19:07:49 -0400 Received: from as3-3-4.ml.g.bonet.se ([194.236.33.69]:31757 "EHLO tellus.mine.nu") by vger.kernel.org with ESMTP id ; Fri, 27 Apr 2001 19:07:29 -0400 Date: Sat, 28 Apr 2001 00:47:43 +0200 (CEST) From: Tobias Ringstrom To: Andre Hedrick , Jens Axboe cc: Kernel Mailing List Subject: IDE reset and DMA disabled after CD read error Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org When reading a bad CD, Linux 2.4.4-pre5 decided to turn off DMA when trying to read a bad sector. It also decided to reset the drive. Is that the expected behaviour? I'm certanly not an ATAPI expert, but it does seem a bit drastic to me. The drive is in UDMA33 mode on a VIA vt82c686a, with no (U)DMA problems detected (so far). Isn't it possible to recogise a read error and treat it more gently? /Tobias, fumbling in the dark Here is the dmesg output: Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:32 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:32 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:33 igor kernel: hda: DMA disabled Apr 27 23:32:33 igor kernel: hda: ATAPI reset complete Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:34 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:34 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: ATAPI reset complete Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:37 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:37 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:37 igor kernel: hda: ATAPI reset complete Apr 27 23:32:37 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651222 Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:39 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:39 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:40 igor kernel: hda: ATAPI reset complete Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:41 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:41 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:42 igor kernel: hda: ATAPI reset complete Apr 27 23:32:42 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651222 Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:43 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:43 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: ATAPI reset complete Apr 27 23:32:45 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:45 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: ATAPI reset complete Apr 27 23:32:46 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651224 Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:48 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:48 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:49 igor kernel: hda: ATAPI reset complete Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:50 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:50 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:51 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:51 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:51 igor kernel: hda: ATAPI reset complete Apr 27 23:32:51 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651226 - 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/