From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263462AbTL3BmU (ORCPT ); Mon, 29 Dec 2003 20:42:20 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264290AbTL3BmU (ORCPT ); Mon, 29 Dec 2003 20:42:20 -0500 Received: from mx1.redhat.com ([66.187.233.31]:11219 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S263462AbTL3BmS (ORCPT ); Mon, 29 Dec 2003 20:42:18 -0500 Date: Tue, 30 Dec 2003 01:40:11 +0000 From: Dave Jones To: Martin Schlemmer Cc: Thomas Molina , Linus Torvalds , Kernel Mailing List Subject: Re: 2.6.0 performance problems Message-ID: <20031230014011.GB30369@redhat.com> Mail-Followup-To: Dave Jones , Martin Schlemmer , Thomas Molina , Linus Torvalds , Kernel Mailing List References: <1072741422.25741.67.camel@nosferatu.lan> <20031230012715.GA30369@redhat.com> <1072748264.25741.79.camel@nosferatu.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1072748264.25741.79.camel@nosferatu.lan> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 30, 2003 at 03:37:44AM +0200, Martin Schlemmer wrote: > > It's not uncommon for a laptop to have a hard disk which supports > > higher DMA modes than what the IDE chipset supports. > > My aging Intel 440BX based VAIO has a disk in the same configuration > > as yours, supports udma4, but chipset only goes up to udma2. > Right, or as somebody else pointed out, it might not be a 80-pin cable. > > Lets rephrase - does it also run in udma2 mode with 2.4 ? Yes, because the chipset is not capable of >udma2. Dave -- Dave Jones http://www.codemonkey.org.uk