From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753611Ab1CHWFd (ORCPT ); Tue, 8 Mar 2011 17:05:33 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46922 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751373Ab1CHWFc (ORCPT ); Tue, 8 Mar 2011 17:05:32 -0500 Date: Tue, 8 Mar 2011 17:05:26 -0500 From: Mike Snitzer To: Jens Axboe Cc: "linux-kernel@vger.kernel.org" , "hch@infradead.org" Subject: Re: [PATCH 05/10] block: remove per-queue plugging Message-ID: <20110308220526.GA393@redhat.com> References: <1295659049-2688-1-git-send-email-jaxboe@fusionio.com> <1295659049-2688-6-git-send-email-jaxboe@fusionio.com> <20110303221353.GA10366@redhat.com> <4D761E0D.8050200@fusionio.com> <20110308202100.GA31744@redhat.com> <4D76912C.9040705@fusionio.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4D76912C.9040705@fusionio.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 08 2011 at 3:27pm -0500, Jens Axboe wrote: > On 2011-03-08 21:21, Mike Snitzer wrote: > > On Tue, Mar 08 2011 at 7:16am -0500, > > Jens Axboe wrote: > > > >> On 2011-03-03 23:13, Mike Snitzer wrote: > >>> I'm now hitting a lockdep issue, while running a 'for-2.6.39/stack-plug' > >>> kernel, when I try an fsync heavy workload to a request-based mpath > >>> device (the kernel ultimately goes down in flames, I've yet to look at > >>> the crashdump I took) > >> > >> Mike, can you re-run with the current stack-plug branch? I've fixed the > >> !CONFIG_BLOCK and rebase issues, and also added a change for this flush > >> on schedule event. It's run outside of the runqueue lock now, so > >> hopefully that should solve this one. > > > > Works for me, thanks. > > Super, thanks! Out of curiousity, did you use dm/md? Yes, I've been using a request-based DM multipath device.