From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Kernel oops: 2.6.16-rc3-mm1 dvd mount Date: Mon, 20 Feb 2006 23:17:41 +0900 Message-ID: <43F9CF85.1020500@gmail.com> References: <43F4A5FE.3080601@feise.com> <43F96743.9050103@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from pproxy.gmail.com ([64.233.166.177]:56917 "EHLO pproxy.gmail.com") by vger.kernel.org with ESMTP id S964935AbWBTORy (ORCPT ); Mon, 20 Feb 2006 09:17:54 -0500 Received: by pproxy.gmail.com with SMTP id i75so1112826pye for ; Mon, 20 Feb 2006 06:17:51 -0800 (PST) In-Reply-To: <43F96743.9050103@gmail.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: jfeise@feise.com Cc: linux-kernel@vger.kernel.org, Jens Axboe , Andrew Morton , SCSI Mailing List , James Bottomley Tejun Heo wrote: > This oops happened because get_request() was invoked with NULL @q. It > seems like SCSI midlayer refcounting mixup. I'll dig deeper and report > again as soon as I can find something concrete. Hello, all & James. I've bisected the patch series and the winner is #221 git-scsi-misc.patch which seems to contain eight commits. I think SCSI people can hunt this down from now on. The bug happens whenever sr block device is accessed - mount, cat, whatever, and now it seems like some kind of data overrun. Hope it helped. -- tejun