From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266462AbUAOJgn (ORCPT ); Thu, 15 Jan 2004 04:36:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266465AbUAOJgn (ORCPT ); Thu, 15 Jan 2004 04:36:43 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:21909 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S266462AbUAOJgm (ORCPT ); Thu, 15 Jan 2004 04:36:42 -0500 Date: Thu, 15 Jan 2004 10:36:36 +0100 From: Jens Axboe To: markw@osdl.org Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.1 oops w/ reiserfs + deadline elevator Message-ID: <20040115093636.GJ5507@suse.de> References: <200401142115.i0ELFDo23784@mail.osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200401142115.i0ELFDo23784@mail.osdl.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 14 2004, markw@osdl.org wrote: > I'm getting the following oops with our DBT-2 workload. It appears that > I can only reproduce the problem with a combination of an aacraid > controller, reiserfs, and the deadline elevator. I'm also using lvm2 > but I can't really try to do the same test without lvm2 though. I have > seen everything behave properly with the AS elevator or without an > aacraid controller. I don't believe this has anything to do with the io scheduler, it looks clearly like a problem deep inside the aac driver (and thus completely io scheduler independent). The fact that it triggers with deadline is likely completely coincidental. Looks like scsicmd->scsi_done == NULL which is very odd. You may want to try and add some debug prints checking that (and dumping scsicmd state) fact. -- Jens Axboe