From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: sata dvdroms fails to be recognized by MCP55 controller with the 2.6.26.5 kernel Date: Wed, 01 Oct 2008 12:04:01 +0900 Message-ID: <48E2E8A1.8090204@gmail.com> References: <64630f150809291601w3511febdyc769b8871db75602@mail.gmail.com> <20080930170849.52c00228.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from ti-out-0910.google.com ([209.85.142.185]:18984 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752363AbYJADFk (ORCPT ); Tue, 30 Sep 2008 23:05:40 -0400 Received: by ti-out-0910.google.com with SMTP id b6so104197tic.23 for ; Tue, 30 Sep 2008 20:05:37 -0700 (PDT) In-Reply-To: <20080930170849.52c00228.akpm@linux-foundation.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Andrew Morton Cc: gettinther , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Andrew Morton wrote: > (cc linux-ide) > > On Tue, 30 Sep 2008 00:01:34 +0100 gettinther wrote: > >> Hi, >> >> I'm currently trying to get the 2.6.26.5 kernel to work but cannot get >> the sata dvdrom to be recognized by the MCP55. The controller works >> with the 2.6.24.4 and 2.6.25.17 kernels. I had to use >> CONFIG_ACPI_DOCK=y for the 2.6.25.17 but this did not work with the >> 2.6.26.5. The problem has been confirmed on at least 2 machines. > > It's a regression. > >> I have tried various boot options (pci=nomsi, acpi=off and any other >> relevant code I could find) but nothing seems to work. The odd thing >> is the sata dvdrom was recognized twice by the 2.6.26.5 kernel (2 >> different kernel tests) for no apparent reason (could not get it to >> work afterward). >> >> Here's the cut info for each kernel from /var/log/messages (2.6.25.17, >> 2.6.26.5 working, 2.6.26.5 not working). If you require further >> information I can submit it. I don't want to put too much on the first >> message. Does irqpoll help? -- tejun