From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750737AbVKSTKX (ORCPT ); Sat, 19 Nov 2005 14:10:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750753AbVKSTKX (ORCPT ); Sat, 19 Nov 2005 14:10:23 -0500 Received: from styx.suse.cz ([82.119.242.94]:9931 "EHLO mail.suse.cz") by vger.kernel.org with ESMTP id S1750737AbVKSTKW (ORCPT ); Sat, 19 Nov 2005 14:10:22 -0500 Date: Sat, 19 Nov 2005 20:10:12 +0100 From: Vojtech Pavlik To: "Larry.Finger@lwfinger.net" Cc: linux-kernel@vger.kernel.org Subject: Re: DMA mode locked off when via82cxxx ide driver built as module in 2.6.14 Message-ID: <20051119191012.GA19286@midnight.ucw.cz> References: <111920051859.9281.437F7619000700AC0000244121603763169D0A09020700D2979D9D0E04@att.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <111920051859.9281.437F7619000700AC0000244121603763169D0A09020700D2979D9D0E04@att.net> X-Bounce-Cookie: It's a lemon tree, dear Watson! User-Agent: Mutt/1.5.10i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Nov 19, 2005 at 06:59:37PM +0000, Larry.Finger@lwfinger.net wrote: > My HP ze1115 notebook uses the via82cxxx ide driver. If I configure the kernel build to make that driver as a module, the driver is correctly added to initrd and is loaded at boot time; however, DMA mode is turned off. It cannot be turned on even if I use an 'hdparm -d1 /dev/hda' command. > > Is this a bug, or do I need some kind of IDE=XXX boot command? As expected, system performance in this mode is horrible. What chipset does your notebook use? 'lspci -vv' should give a good answer. -- Vojtech Pavlik SuSE Labs, SuSE CR