From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262019AbULVUSJ (ORCPT ); Wed, 22 Dec 2004 15:18:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262031AbULVUSJ (ORCPT ); Wed, 22 Dec 2004 15:18:09 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:61878 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S262019AbULVUSG (ORCPT ); Wed, 22 Dec 2004 15:18:06 -0500 Message-ID: <41C9D679.70209@pobox.com> Date: Wed, 22 Dec 2004 15:18:01 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040922 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Edward Broustinov CC: linux-kernel@vger.kernel.org Subject: Re: Can't activate dma on ide/sata under 2.6.5/9 + Intel E7520 chipset References: <1103708275.570197.31660@z14g2000cwz.googlegroups.com> <20041222094014.B5A1E5F727@attila.bofh.it> <641bfad604122201527736eca6@mail.gmail.com> In-Reply-To: <641bfad604122201527736eca6@mail.gmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Edward Broustinov wrote: > Hi, > hdparm -d1 /dev/hda (or /dev/sda) returns "HDIO_SET_DMA failed: > Operation not permitted" on both disks. > Is it possible that there's no (full?) support for ICH5-R in those kernels? > The motherboard is Intel SE7520BD2, exact kernel versions which were > tried are: > 2.6.9-1.667smp #1 SMP Tue Nov 2 15:09:11 EST 2004 x86_64 x86_64 x86_64 > GNU/Linux (FC3 64bit) > 2.6.5-1.358smp #1 SMP Sat May 8 09:28:14 EDT 2004 x86_64 x86_64 x86_64 > GNU/Linux (FC2 64bit) > > 2.4.21/22 (RH9) and 2.6.7* (AS3.0) do not show this problem on the board. > > Does anybody have any idea/patch/hack? If you are using libata (/dev/sdX), then DMA is unconditionally enabled. Jeff