From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272012AbTGYLEY (ORCPT ); Fri, 25 Jul 2003 07:04:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272013AbTGYLEY (ORCPT ); Fri, 25 Jul 2003 07:04:24 -0400 Received: from mail2.bluewin.ch ([195.186.4.73]:48834 "EHLO mail2.bluewin.ch") by vger.kernel.org with ESMTP id S272012AbTGYLEU (ORCPT ); Fri, 25 Jul 2003 07:04:20 -0400 Date: Fri, 25 Jul 2003 13:19:26 +0200 From: Roger Luethi To: Meelis Roos Cc: linux-kernel@vger.kernel.org Subject: Re: IDE DMA disabled messages for wrong drive? Message-ID: <20030725111926.GA3793@k3.hellgate.ch> Mail-Followup-To: Meelis Roos , linux-kernel@vger.kernel.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Operating-System: Linux 2.4.21 on i686 X-GPG-Fingerprint: 92 F4 DC 20 57 46 7B 95 24 4E 9E E7 5A 54 DC 1B X-GPG: 1024/80E744BD wwwkeys.ch.pgp.net User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 24 Jul 2003 20:36:14 +0300, Meelis Roos wrote: > I access hdd, I get DMA timeouts for hdd (for whatever reasons), then > suddenly comes a message that DMA is disabled for hdc (not hdd). hdc > was not accessed at all suring this time - it's a cdrom and no CD was > inserted and no CD access was tried. I have seen this, too, with two harddisks (hda, hdb) on a recent 2.5 kernel: warnings about DMA timeouts on one of them, immediately followed by a message about turning off DMA on the other one. I had to replace one of the disks subsequently and lost the logs, but I remember wondering about that. I supposed the kernel might have some reason to blame the hard disk without warnings (both harddisks seemed rather suspicious at the time). Roger