From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262784AbTJTUGk (ORCPT ); Mon, 20 Oct 2003 16:06:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262783AbTJTUGk (ORCPT ); Mon, 20 Oct 2003 16:06:40 -0400 Received: from moutng.kundenserver.de ([212.227.126.188]:5883 "EHLO moutng.kundenserver.de") by vger.kernel.org with ESMTP id S262784AbTJTUGc (ORCPT ); Mon, 20 Oct 2003 16:06:32 -0400 From: Hans-Peter Jansen To: linux-kernel@vger.kernel.org Subject: ide retry behavior Date: Mon, 20 Oct 2003 22:06:27 +0200 User-Agent: KMail/1.5.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200310202206.27418.hpj@urpla.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I had a 80 GB Maxtor 6L080J4 ide disk crash last week. While the data recovery task with dd_rescue was successful, it took about 31 hours to read through the entire disk, and some tests has shown, that reverse reading was advantageous. On the other hand, disabling DMA slowed down the read process to a crawl in the error case, thus I kept DMA on. Analyzing the syslogs showed, that a few retries are done. This raises the question, is it possible to adjust the retry count on the fly, since this would allow a more intelligent datarecovery strategy: first run: retry 0 and remember badblocks (persistent) second run: retry 2 on all badblocks and allow an arbitrary number of runs with increasing retries. Looking into the kernel revealed the max_failures setting, but since it is 1 by default, it's not the mechanism involved here. I'm open to experiments with this drive, before returning it to the distributor. Again: is there an existing interface to modify the kernels retry behavior? I hope to reduce the recovery time by factor 5-10, if possible. If you have an idea on this, please CC me, although I'm subscribed. TIA, Pete Summary for /dev/hdc -> /dev/hda: dd_rescue: (info): ipos: 0.0k, opos: 0.0k, xferd: 78177792.0k - errs: 2520, errxfer: 1260.0k, succxfer: 78176532.0k +curr.rate: 8034kB/s, avg.rate: 740kB/s, avg.load: 0.0% An syslog excerpt: Oct 17 22:36:00 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:00 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225470, sector=34225468 Oct 17 22:36:00 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225468 Oct 17 22:36:06 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:06 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225470, sector=34225470 Oct 17 22:36:06 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225470 Oct 17 22:36:17 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:17 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:36:17 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:36:23 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:23 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:36:23 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:36:28 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:28 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:36:28 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:36:34 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:34 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:36:34 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:36:39 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:39 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:36:39 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:36:45 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:45 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:36:45 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:36:51 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:51 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:36:51 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:36:56 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:36:56 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:36:56 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:37:02 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:02 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:37:02 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:37:07 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:07 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:37:07 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:37:13 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:13 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:37:13 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:37:19 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:19 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:37:19 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:37:25 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:25 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:37:25 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:37:31 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:31 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:37:31 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:37:36 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:36 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:37:36 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:37:42 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:42 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:37:42 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:37:48 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:48 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:37:48 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:37:53 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:53 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:37:53 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:37:59 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:37:59 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:37:59 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:38:05 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:05 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:38:05 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:38:11 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:11 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:38:11 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:38:17 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:17 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225451, sector=34225450 Oct 17 22:38:17 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:38:22 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:22 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:38:22 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:38:28 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:28 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:38:28 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:38:34 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:34 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:38:34 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:38:40 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:40 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:38:40 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:38:45 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:45 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:38:45 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:38:51 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:51 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:38:51 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:38:57 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:38:57 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225448, sector=34225448 Oct 17 22:38:57 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225448 Oct 17 22:39:02 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:02 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225450, sector=34225450 Oct 17 22:39:02 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225450 Oct 17 22:39:07 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:07 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225452, sector=34225452 Oct 17 22:39:07 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225452 Oct 17 22:39:13 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:13 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225454, sector=34225454 Oct 17 22:39:13 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225454 Oct 17 22:39:19 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:19 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:39:19 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:39:25 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:25 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:39:25 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:39:30 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:30 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:39:30 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:39:36 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:36 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225446, sector=34225446 Oct 17 22:39:36 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225446 Oct 17 22:39:42 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:42 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:39:42 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:39:48 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:48 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:39:48 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:39:53 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:53 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:39:53 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:39:59 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:39:59 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225446, sector=34225446 Oct 17 22:39:59 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225446 Oct 17 22:40:05 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:05 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:40:05 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:40:10 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:10 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:40:10 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:40:16 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:16 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:40:16 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:40:22 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:22 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225446, sector=34225446 Oct 17 22:40:22 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225446 Oct 17 22:40:27 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:27 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:40:27 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:40:33 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:33 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:40:33 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:40:39 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:39 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:40:39 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:40:45 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:45 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225446, sector=34225446 Oct 17 22:40:45 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225446 Oct 17 22:40:50 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:50 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:40:50 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:40:56 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:40:56 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:40:56 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:41:02 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:02 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:41:02 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:41:13 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:13 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:41:13 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:41:18 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:18 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:41:18 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:41:24 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:24 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:41:24 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:41:30 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:30 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:41:30 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:41:35 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:35 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:41:35 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:41:41 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:41 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225444, sector=34225444 Oct 17 22:41:41 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225444 Oct 17 22:41:46 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:46 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225440, sector=34225440 Oct 17 22:41:46 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225440 Oct 17 22:41:52 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:41:52 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34225442, sector=34225442 Oct 17 22:41:52 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34225442 Oct 17 22:42:11 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:42:11 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34224981, sector=34224960 Oct 17 22:42:11 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34224960 Oct 17 22:42:21 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:42:21 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34224837, sector=34224832 Oct 17 22:42:21 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34224832 Oct 17 22:42:27 kernel: hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error } Oct 17 22:42:27 kernel: hdc: dma_intr: error=0x40 { UncorrectableError }, LBAsect=34224837, sector=34224834 Oct 17 22:42:27 kernel: end_request: I/O error, dev 16:00 (hdc), sector 34224834