From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756693AbZEAJSu (ORCPT ); Fri, 1 May 2009 05:18:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753224AbZEAJSm (ORCPT ); Fri, 1 May 2009 05:18:42 -0400 Received: from smtp.flash.net.br ([201.46.240.48]:59781 "EHLO smtp.gru.flash.tv.br" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752693AbZEAJSm (ORCPT ); Fri, 1 May 2009 05:18:42 -0400 Date: Fri, 1 May 2009 06:18:04 -0300 From: =?utf-8?Q?Rog=C3=A9rio?= Brito To: Bartlomiej Zolnierkiewicz Cc: Alan Cox , Jeff Garzik , Michael Tokarev , Mark Lord , linux-kernel@vger.kernel.org Subject: Re: Quick question about libata and hdparm Message-ID: <20090501091804.GB29466@ime.usp.br> References: <200904211459.26965.bzolnier@gmail.com> <20090423055618.GA23042@ime.usp.br> <200904232331.13729.bzolnier@gmail.com> <6540c930904232000t76aa4954l4f5cee5bad64aacb@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <6540c930904232000t76aa4954l4f5cee5bad64aacb@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Bart and other people. On Apr 24 2009, Rogério Brito wrote: > On 4/23/09, Bartlomiej Zolnierkiewicz wrote: > > You can try booting with "libata.force=1.00:mwdma2" kernel paramater > > to force use of "regular" MWDMA2 transfer mode instead of UDMA ones > > so we are sure that the issue is specific to pata_pdc202xx_old + > > UDMA. > > This *did* work. I see no other error messages, while using multword > dma. So I think that this serves for us to rule out some unknown > variables. Is there anything that I can do right now? Just to remember, the original IDE driver works without any problems, but I would like to migrate everything to libata (and many distributions are already using libata by default, even with IDE devices). Thanks, Rogério Brito. -- Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8 http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org