Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 20 Mar 2001 04:05:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 20 Mar 2001 04:05:29 -0500 Received: from mail.sonytel.be ([193.74.243.200]:44535 "EHLO mail.sonytel.be") by vger.kernel.org with ESMTP id ; Tue, 20 Mar 2001 04:05:20 -0500 Date: Tue, 20 Mar 2001 10:03:37 +0100 (MET) From: Geert Uytterhoeven To: Jeff Garzik cc: Linux Kernel Development Subject: Re: st corruption with 2.4.3-pre4 In-Reply-To: <3AB63F5F.B7C3E71A@mandrakesoft.com> 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 On Mon, 19 Mar 2001, Jeff Garzik wrote: > Is the corruption reproducible? If so, does the corruption go away if Yes, it is reproducible. In all my tests, I tarred 16 files of 16 MB each to tape (I used a new one). - test 1: 4 files with failed md5sum (no further investigation on type of corruption) - test 2: 7 files with failed md5sum, 7 blocks of 32 consecutive bytes were corrupted, all starting at an offset of the form 32*x+1. - test 3: 7 files with failed md5sum, 7 blocks of 32 consecutive bytes were corrupted, all starting at an offset of the form 32*x+1. The files seem to be corrupted during writing only, as reading always gives the exact same (corrupted) data back. Copying files from the disk on the MESH to a disk on the Sym53c875 (which also has the tape drive) shows no corruption. > you rip out the scsi_error patch in 2.4.3-preXX? After reverting that patch, the problem got worse: - test 4: 15 files with failed md5sum, a total of 40 blocks of 32 consecutive bytes were corrupted, all starting at an offset of the form 32*x+1. So it seems to be related to scsi_error.c. If you have some suggestions, I'm willing to try them. I'd like to trust whatever Amanda writes to my backup tapes :-) Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds - 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/