From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Help interpreting AHCI failure messages Date: Mon, 22 Dec 2008 18:54:57 +0900 Message-ID: <494F63F1.3020207@gmail.com> References: <4942D651.1050306@goop.org> <4943317C.8000807@shaw.ca> <49434EC9.4070408@goop.org> <49446DD0.3030600@gmail.com> <494BCC08.4070206@goop.org> <494F11FD.1040606@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ti-out-0910.google.com ([209.85.142.186]:8299 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750992AbYLVJzG (ORCPT ); Mon, 22 Dec 2008 04:55:06 -0500 In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Andrew Lyon Cc: Jeremy Fitzhardinge , Robert Hancock , Jeff Garzik , IDE/ATA development list , Linux Kernel Mailing List , Xen-devel , Gerd Hoffmann Hello, Andrew Lyon wrote: >>>>> Furthermore, ata2 - which is sharing the same interrupt - seems to have >>>>> managed to read the DVD drive's information, so something must be >>>>> working. But why is it failing for the disk? >>>> Can you try irqpoll on it? >>> Here's a log of a run where everything works initially, but then it >>> starts to fail (about half way into the log). ATA_DEBUG is enabled, so >>> its pretty verbose. >>> >>> http://kraxel.fedorapeople.org/for-jeremy/xeni.log >>> >>> Does anything stand out? >> Can you please exclude pata_acpi from the initrd and see whether >> anything changes? > > I have already tried using a kernel with pata_acpi disabled, it does not help. There's a BUG messages in the log and several IRQ enable/disable messages && once timeout happens on one of the ata port, the other one begins to time out too. I'm out of ideas and think this really needs a look from someone who knows xen. It doesn't seem to be a libata problem at this point. Thanks. -- tejun