Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933327AbXBGMoW (ORCPT ); Wed, 7 Feb 2007 07:44:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933326AbXBGMoV (ORCPT ); Wed, 7 Feb 2007 07:44:21 -0500 Received: from vsmtp14.tin.it ([212.216.176.118]:41140 "EHLO vsmtp14.tin.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933269AbXBGMoU (ORCPT ); Wed, 7 Feb 2007 07:44:20 -0500 Date: Wed, 7 Feb 2007 13:44:16 +0100 (CET) From: l.genoni@oltrelinux.com X-X-Sender: venom@Phoenix.oltrelinux.com To: Alan cc: linux-ide@vger.kernel.org, jgarzik@pobox.com, htejun@gmail.com, alan@red-hat.com, linux-kernel@vger.kernel.org Subject: Re: [BUG?] ata disk running maximum at DMA33 with 2.6.20 and new pata driver, NV CK804 ide controller. In-Reply-To: <20070207122000.2e17ecb6@localhost.localdomain> Message-ID: References: <200702070119.36320.genoni@darkstar.oltrelinux.com> <20070207122000.2e17ecb6@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1829 Lines: 51 I did the test you asked and yes, it is consistently booting at DMA33 with 2.6.20 and DMA100 with 2.6.19.3 (20 reboots, 10 2.6.20 and 10 2.6.19 in sparse order). I am compiling a 2.6.20 kernel with older pata_amd.c driver and will let you know. seeing the diff I do exspect it to compile cleanly. Luigi On Wed, 7 Feb 2007, Alan wrote: > Date: Wed, 7 Feb 2007 12:20:00 +0000 > From: Alan > To: Luigi Genoni > Cc: linux-ide@vger.kernel.org, jgarzik@pobox.com, htejun@gmail.com, > alan@red-hat.com, linux-kernel@vger.kernel.org > Subject: Re: [BUG?] ata disk running maximum at DMA33 with 2.6.20 and new pata > driver, NV CK804 ide controller. > Resent-Date: Wed, 07 Feb 2007 13:17:42 +0100 > Resent-From: > > On Wed, 7 Feb 2007 01:19:36 +0100 > Luigi Genoni wrote: > >> Hi, >> since upgrading to kernel 2.6.20 my pata disk, using new pata driver, is >> initialized maximum in DMA33 mode (and obviously performances drop >> consequently), as you can see from: > > Interesting. > >> Willing to test any patch. > > Firstly can you see if its consistently the case that booting 2.6.20 > gives UDMA33 and 2.6.19 UDMA100 over a few reboots. If it is please drop > the 2.6.19 drivers/ata/pamd_amd into 2.6.20 and try that. > > Thanks > > 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/ > - 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/