From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932197AbWDPDsm (ORCPT ); Sat, 15 Apr 2006 23:48:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932198AbWDPDsm (ORCPT ); Sat, 15 Apr 2006 23:48:42 -0400 Received: from smtp.bulldogdsl.com ([212.158.248.8]:30215 "EHLO mcr-smtp-002.bulldogdsl.com") by vger.kernel.org with ESMTP id S932197AbWDPDsm (ORCPT ); Sat, 15 Apr 2006 23:48:42 -0400 X-Spam-Abuse: Please report all spam/abuse matters to abuse@bulldogdsl.com From: Alistair John Strachan To: linux-kernel@vger.kernel.org Subject: Re: SATA Conflict with PATA DMA Date: Sun, 16 Apr 2006 04:48:47 +0100 User-Agent: KMail/1.9.1 Cc: Bill Waddington References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200604160448.47225.s0348365@sms.ed.ac.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Saturday 15 April 2006 19:38, Bill Waddington wrote: > On Sat, 15 Apr 2006 16:42:22 UTC, in fa.linux.kernel you wrote: > >Esben Stien wrote: > >> I'm having problems enabling DMA for my PATA HD. > >> > >> hdparm -d1 /dev/hdb reports: > >> HDIO_SET_DMA failed: Operation not permitted > >> > >> Of course, I'm super user. Nothing is printed in dmesg. > >> > >> I'm on linux-2.6.16 and motherboard is Fujitsu Siemens D1561 with an > >> ICH5. I also have a SATA hd in the computer and this only happens when > >> the SATA hd is there. If I remove the SATA HD, then I can enable DMA > >> for the PATA hd. > > > >Disabled combined mode in BIOS. > > If only that was possible on my fscking T43. *sigh* Not sure if this is universal, but if Linux doesn't claim the PATA interface, the SATA seems to drive optical drives on (presumably) the other channel (ICH7 here, on a Dell laptop with a similar BIOS limitation). Try CONFIG_IDE=n and boot with libata.atapi_enable=1 and see what happens... -- Cheers, Alistair. 'No sense being pessimistic, it probably wouldn't work anyway.' Third year Computer Science undergraduate. 1F2 55 South Clerk Street, Edinburgh, UK.