Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932908AbXFRU7U (ORCPT ); Mon, 18 Jun 2007 16:59:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763449AbXFRU7H (ORCPT ); Mon, 18 Jun 2007 16:59:07 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:33887 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1764150AbXFRU7G (ORCPT ); Mon, 18 Jun 2007 16:59:06 -0400 Date: Mon, 18 Jun 2007 22:04:41 +0100 From: Alan Cox To: linas@austin.ibm.com (Linas Vepstas) Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [BUG] ide dma_timer_expiry, then hard lockup Message-ID: <20070618220441.3a3af8ca@the-village.bc.nu> In-Reply-To: <20070618204601.GF5836@austin.ibm.com> References: <20070618175713.GD5836@austin.ibm.com> <20070618212704.394912b8@the-village.bc.nu> <20070618204601.GF5836@austin.ibm.com> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.8; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 20 > So what do you suggest? (I could buy an alternate ide controller, > and hope that goes away, or just buy a different hard drive. But > that's beside the point). The DMA timeout itself could be all sorts of things - crap driver, crap hardware, PCI bus contention, noise, problem disk, phase of the moon. > I can prepare a patch, but only with a lot of guidance. I can test > & debug, I'm highly motivated just right now ... If you've got a nice repeatable problem please try using the libata driver. That handles the error paths differently and doesn't try a FIFO drain which might matter in this case I guess. Alan - 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/