From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759855AbYAVADV (ORCPT ); Mon, 21 Jan 2008 19:03:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752994AbYAVADO (ORCPT ); Mon, 21 Jan 2008 19:03:14 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:57476 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752862AbYAVADO (ORCPT ); Mon, 21 Jan 2008 19:03:14 -0500 Date: Tue, 22 Jan 2008 00:00:34 +0000 From: Alan Cox To: Bartlomiej Zolnierkiewicz Cc: jeff@garzik.org, akpm@osdl.org, torvalds@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] pata_pdc202xx_old: Fix crashes with ATAPI Message-ID: <20080122000034.3e3f6dbb@lxorguk.ukuu.org.uk> In-Reply-To: <200801220013.53545.bzolnier@gmail.com> References: <20080119155126.180a010d@lxorguk.ukuu.org.uk> <200801220013.53545.bzolnier@gmail.com> X-Mailer: Claws Mail 3.2.0 (GTK+ 2.12.3; x86_64-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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > IDE pdc202xx_old host driver supports ATAPI DMA just fine and in line > with the PDC2026x programming guide. News to me. It didn't last time I tried it the driver selected PIO. > > So turn it ATAPI DMA off, these are disk optimised controllers. > > This is an acceptable workaround for 2.6.24 but it probably just hides > some deeper pata_pdc202xx_old or/and libata problem. Hard to be sure. No docs here for the older ones. Alan