From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964933AbVIVIGM (ORCPT ); Thu, 22 Sep 2005 04:06:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751445AbVIVIGL (ORCPT ); Thu, 22 Sep 2005 04:06:11 -0400 Received: from laf31-5-82-235-130-100.fbx.proxad.net ([82.235.130.100]:10749 "EHLO lexbox.fr") by vger.kernel.org with ESMTP id S1751443AbVIVIGK convert rfc822-to-8bit (ORCPT ); Thu, 22 Sep 2005 04:06:10 -0400 Subject: RE: How to Force PIO mode on sata promise (Linux 2.6.10) MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-class: urn:content-classes:message Date: Thu, 22 Sep 2005 10:03:10 +0200 X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Message-ID: <17AB476A04B7C842887E0EB1F268111E026FBD@xpserver.intra.lexbox.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: How to Force PIO mode on sata promise (Linux 2.6.10) thread-index: AcW/Icc+56C5Fc5NQY2nw7Bcc/NBSQAKWdog From: "David Sanchez" To: "Chris Wedgwood" Cc: "Jeff Garzik" , Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Chris, It was a good idea but it doesn't resolve the problem... I add my card into the dma_black_list of the libata to force DMA disabled and the problem seems to no more appear...maybe PIO is so slow that the data has no time to be corrupted... But I can NOT affirm that the problem is the DMA. I try the linux kernel 2.4,2.6.11, 2.6.12 and 2.6.13. More I try 2 different toolchains and the problem persists... Another idea?? Thanks, David -----Message d'origine----- De : linux-kernel-owner@vger.kernel.org [mailto:linux-kernel-owner@vger.kernel.org] De la part de Chris Wedgwood Envoyé : jeudi 22 septembre 2005 05:00 À : David Sanchez Cc : Jeff Garzik; linux-kernel@vger.kernel.org Objet : Re: How to Force PIO mode on sata promise (Linux 2.6.10) On Wed, Sep 21, 2005 at 02:28:02PM +0200, David Sanchez wrote: > I'm using the linux kernel 2.6.10 and busybox on an AMD db AU1550 > with a hdd connected to the pata port of a PCI card (Promise > PDC20579). Disable prefetch in lib/memcpy.S and see if that helps. - 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/