Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261409AbTH2QQS (ORCPT ); Fri, 29 Aug 2003 12:16:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261421AbTH2QQS (ORCPT ); Fri, 29 Aug 2003 12:16:18 -0400 Received: from mail2.sonytel.be ([195.0.45.172]:63404 "EHLO witte.sonytel.be") by vger.kernel.org with ESMTP id S261409AbTH2QPS (ORCPT ); Fri, 29 Aug 2003 12:15:18 -0400 Date: Fri, 29 Aug 2003 18:15:08 +0200 (MEST) From: Geert Uytterhoeven To: Alan Cox cc: Larry McVoy , Linux Kernel Mailing List Subject: Re: IDE wierdness In-Reply-To: <1061394048.550.18.camel@dhcp23.swansea.linux.org.uk> 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 Content-Length: 1727 Lines: 41 On 20 Aug 2003, Alan Cox wrote: > On Mer, 2003-08-20 at 16:09, Larry McVoy wrote: > > It's clear to me that I don't want to use this drive but I'm wondering if > > there is any interest in debugging the lock up. I've only done it on > > 2.4.18 as shipped by redhat but I could try 2.6 or whatever you like. > > > > If the concensus is that it is OK that bad hardware locks you up then I'll > > toss the drive and move on. > > Some PIO transfers are regulated by the drive and the drive can lock the > bus forever. Newer chipsets like the SI680/3112 support watchdog > deadlock breakers for this but we don't really support them right now. > > Getting different data off a failing drive is unusual because the blocks > are ECC'd extensively (well more than ECC'd) and have checks, could be > the RAM/CPU going I guess. Although it can happen. I used to see corrupted data in /etc/motd (which is rewritten on each boot up) and random SEGVs on an embedded box. A few weeks later the drive started to report real errors. After mapping out the bad blocks using e2fsck -c, and replacing the files that were affected, the problem disappeared. Looks like ECC is not always ECC... 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/