From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753026AbXCRFlX (ORCPT ); Sun, 18 Mar 2007 01:41:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753042AbXCRFlX (ORCPT ); Sun, 18 Mar 2007 01:41:23 -0400 Received: from nz-out-0506.google.com ([64.233.162.235]:33288 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752842AbXCRFlV (ORCPT ); Sun, 18 Mar 2007 01:41:21 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:x-enigmail-version:content-type:content-transfer-encoding; b=lALqM4TpVcblsiP50ixhM/Qb+zAyoJxRd5HM9R6cw6U0WW8qWoLF1XLCgEV+1PWTDKG7e5CF18bQYhTRYsZmcm3F5Vx+3WRdM+rSVC2M5fkHaUsOJ3WIDMViqV9OgFxwNqyI0xZf0oSMPuSEZLGjpoY5VM6KvvAbzJJx8OkrWNs= Message-ID: <45FCD0FB.70507@gmail.com> Date: Sun, 18 Mar 2007 14:41:15 +0900 From: Tejun Heo User-Agent: Icedove 1.5.0.10 (X11/20070307) MIME-Version: 1.0 To: Jon Masters CC: Chuck Ebbert , linux-kernel , Jeff Garzik , linux-ide@vger.kernel.org, Conke Hu Subject: Re: Loading both the pata_atiixp and the ahci driver causes problems References: <45F9C3F5.4070906@redhat.com> <45F9F5F0.3090508@jonmasters.org> In-Reply-To: <45F9F5F0.3090508@jonmasters.org> X-Enigmail-Version: 0.94.2.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jon Masters wrote: > Chuck Ebbert wrote: > >> If you try to load both the pata_atiixp and the ahci driver >> (for the same ATI SB600 adapter), very strange things happen. >> The AHCI driver churns for three minutes or so, spewing >> messages like this, then nothing works: >> >> <6>ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) >> <4>ata3.00: qc timeout (cmd 0xec) >> <4>ata3.00: failed to IDENTIFY (I/O error, err_mask=0x104) > >> Shouldn't it be able to tell the device has already been >> claimed by some other driver? > > One would assume it'd fail to grab the PCI IO ranges twice? I haven't > looked at the code but I have seen this bug mentioned elsewhere so I > might well end up having to do that yet :-) Dunno much about sb600 but ahci and pata_atiixp are probably using separate IO regions && separate PCI functions. Conke, care to educate us a bit here? -- tejun