From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754091AbaCJPvQ (ORCPT ); Mon, 10 Mar 2014 11:51:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:19990 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753760AbaCJPvN (ORCPT ); Mon, 10 Mar 2014 11:51:13 -0400 Date: Mon, 10 Mar 2014 11:50:53 -0400 From: Dave Jones To: Tejun Heo Cc: Linus Torvalds , Chris Metcalf , Andrew Morton , Linux Kernel Mailing List , linux-mm Subject: Re: deadlock in lru_add_drain ? (3.14rc5) Message-ID: <20140310155053.GA26188@redhat.com> Mail-Followup-To: Dave Jones , Tejun Heo , Linus Torvalds , Chris Metcalf , Andrew Morton , Linux Kernel Mailing List , linux-mm References: <20140308220024.GA814@redhat.com> <20140310150106.GD25290@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140310150106.GD25290@htj.dyndns.org> 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 Mon, Mar 10, 2014 at 11:01:06AM -0400, Tejun Heo wrote: > > On Sat, Mar 8, 2014 at 2:00 PM, Dave Jones wrote: > > > I left my fuzzing box running for the weekend, and checked in on it this evening, > > > to find that none of the child processes were making any progress. > > > cat'ing /proc/n/stack shows them all stuck in the same place.. > > > Some examples: > > Dave, any chance you can post full sysrq-t dump? It's too big to fit in the ring-buffer, so some of it gets lost before it hits syslog, but hopefully what made it to disk is enough. http://codemonkey.org.uk/junk/sysrq-t Dave