From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: CF flash IDE failure to attach with 2.6.20+ Date: Thu, 21 Jun 2007 12:02:27 +0900 Message-ID: <4679EA43.4040002@gmail.com> References: <11172839.post@talk.nabble.com> <46766BD3.4040702@gmail.com> <20070618125742.28a0bc57@the-village.bc.nu> <46770edc.101d640a.4fdf.4eae@mx.google.com> <46776306.5030300@gmail.com> <4679cefc.06d7720a.0280.ffff9cce@mx.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from wa-out-1112.google.com ([209.85.146.179]:7240 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758920AbXFUDCb (ORCPT ); Wed, 20 Jun 2007 23:02:31 -0400 Received: by wa-out-1112.google.com with SMTP id v27so154077wah for ; Wed, 20 Jun 2007 20:02:31 -0700 (PDT) In-Reply-To: <4679cefc.06d7720a.0280.ffff9cce@mx.google.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Andrew Hall Cc: 'Alan Cox' , linux-ide@vger.kernel.org, 'Jeff Garzik' Andrew Hall wrote: >> I suppose you were using ata_piix too in older kernel, right? Can you >> post the boot dmesg of 2.6.19? We used to ignore mwdma mode before and >> enabled it at some point after that. That may be the cause here. >> >> Also, please try the attached patch on top of 2.6.20. > > Sorry guys, I've actually got it wrong. The hardware that I have been > testing on has a different chipset: Intel ICH8, to what I was using > previously with success with 2.6.19 (this was ICH4 based hardware) - so the > driver is actually different now. > > Tejun, your patch for 2.6.20 failed with the same errors. > > For completeness I have tested the newer ICH8 hardware with everything from > 2.6.15 through to 2.6.21.5 using the ata_piix drivers and it (the Compact > Flash) fails in all kernels. Here is the (relevant) dmesg from 2.6.21.5 > showing the CF being disabled: Does piix driver work? If so, can you post boot dmesg and the result of 'hdparm -I /dev/hdX'? -- tejun