From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266683AbTGFQ2S (ORCPT ); Sun, 6 Jul 2003 12:28:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266684AbTGFQ2S (ORCPT ); Sun, 6 Jul 2003 12:28:18 -0400 Received: from twilight.ucw.cz ([81.30.235.3]:45532 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id S266683AbTGFQ2R (ORCPT ); Sun, 6 Jul 2003 12:28:17 -0400 Date: Sun, 6 Jul 2003 18:42:42 +0200 From: Vojtech Pavlik To: Alan Cox Cc: Tomas Szepe , Ryan Mack , Markus Plail , Linux Kernel Mailing List Subject: Re: 2.4.21 ServerWorks DMA Bugs Message-ID: <20030706184242.A20851@ucw.cz> References: <87fzllh21i.fsf@gitteundmarkus.de> <1057477237.700.6.camel@dhcp22.swansea.linux.org.uk> <20030706090656.GA4739@louise.pinerecords.com> <1057482631.705.15.camel@dhcp22.swansea.linux.org.uk> <20030706111015.GA303@louise.pinerecords.com> <1057491491.1032.0.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <1057491491.1032.0.camel@dhcp22.swansea.linux.org.uk>; from alan@lxorguk.ukuu.org.uk on Sun, Jul 06, 2003 at 12:38:11PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jul 06, 2003 at 12:38:11PM +0100, Alan Cox wrote: > On Sul, 2003-07-06 at 12:10, Tomas Szepe wrote: > > Also note that when the '-X' switch is omitted (i.e. one only issues > > "/usr/sbin/hdparm -d1 /dev/hdX"), the driver sets up a mode that doesn't > > work and then quickly falls back to PIO. > > Your BIOS has not tuned the drive for DMA either. IMO the driver should do that in that case. There are way too many broken BIOSes to make following what they decided to set up worthwhile. -- Vojtech Pavlik SuSE Labs, SuSE CR