Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262319AbTGAM7m (ORCPT ); Tue, 1 Jul 2003 08:59:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262321AbTGAM7m (ORCPT ); Tue, 1 Jul 2003 08:59:42 -0400 Received: from ip252-142.choiceonecom.com ([216.47.252.142]:50704 "EHLO explorer.reliacomp.net") by vger.kernel.org with ESMTP id S262319AbTGAM7i (ORCPT ); Tue, 1 Jul 2003 08:59:38 -0400 Message-ID: <3F0188FE.90603@cendatsys.com> Date: Tue, 01 Jul 2003 08:13:34 -0500 From: Edward King User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030529 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marek Michalkiewicz , linux-kernel@vger.kernel.org Subject: Re: 2.4.21 IDE problems (lost interrupt, bad DMA status) References: <20030630221542.GA17416@alf.amelek.gda.pl> In-Reply-To: <20030630221542.GA17416@alf.amelek.gda.pl> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 971 Lines: 34 Marek Michalkiewicz wrote: >Hi, > >After upgrading the kernel from 2.4.20 to 2.4.21, sometimes I see >the following messages: > >hda: dma_timer_expiry: dma status == 0x24 >hda: lost interrupt >hda: dma_intr: bad DMA status (dma_stat=30) >hda: dma_intr: status=0x50 { DriveReady SeekComplete } > >It happens especially when there is a lot of disk I/O (which stops >for a few seconds when these messages appear), with three different >disks (very unlikely they all decided to die at the same time...), > > Are you using software raid or devfs? I was losing interrupts and disabling devfs removed the problem (very reproducable with software raid 5 -- never really tried much heavy disk use without raid.) Edward King - 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/