From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.fusionio.com ([66.114.96.31]:54650 "EHLO mx2.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757313Ab2FYOUw (ORCPT ); Mon, 25 Jun 2012 10:20:52 -0400 Date: Mon, 25 Jun 2012 10:20:49 -0400 From: Josef Bacik To: Stefan Priebe - Profihost AG CC: Josef Bacik , "linux-btrfs@vger.kernel.org" Subject: Re: btrfs deadlock in 3.5-rc3 Message-ID: <20120625142048.GB7404@localhost.localdomain> References: <4FE58366.8000302@profihost.ag> <4FE862D7.3060005@fusionio.com> <4FE870DF.90308@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" In-Reply-To: <4FE870DF.90308@profihost.ag> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Mon, Jun 25, 2012 at 08:08:31AM -0600, Stefan Priebe - Profihost AG wrote: > Am 25.06.2012 15:08, schrieb Josef Bacik:> > > This isn't showing the guy who's actually trying to commit the > > transaction. Next time this happens can you do a sysrq+w and capture > > the output and post it here so we can see what everybody is doing? > Thanks, > > > > Josef > > No problem. > > Kernel trace: > http://pastebin.com/raw.php?i=puZkCRCn > > # sys rq w trigger: > # echo w > /proc/sysrq-trigger > http://pastebin.com/raw.php?i=AQA8xxCX Thats weird, sysrq+w should have a bunch of stacktraces but it's empty, so unless theres a bug theres nothing blocked. Is the box actually hung or is it just taking forever? Maybe try sysrq+w again to see if the one you pasted was just a fluke? Thanks, Josef