From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763670AbXGKN3u (ORCPT ); Wed, 11 Jul 2007 09:29:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757984AbXGKN3m (ORCPT ); Wed, 11 Jul 2007 09:29:42 -0400 Received: from cavan.codon.org.uk ([217.147.92.49]:43953 "EHLO vavatch.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756121AbXGKN3l (ORCPT ); Wed, 11 Jul 2007 09:29:41 -0400 Date: Wed, 11 Jul 2007 14:28:20 +0100 From: Matthew Garrett To: Pavel Machek Cc: "Rafael J. Wysocki" , linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org, Alan Stern Message-ID: <20070711132819.GA5753@srcf.ucam.org> References: <20070703042916.GA17240@srcf.ucam.org> <200707031456.36027.rjw@sisk.pl> <20070709132905.GA5212@ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070709132905.GA5212@ucw.cz> User-Agent: Mutt/1.5.12-2006-07-14 X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@codon.org.uk Subject: Re: sysrq-t dumps of s2ram/fuse deadlock (was Re: [PATCH] Remove process freezer from suspend to RAM pathway) X-SA-Exim-Version: 4.2.1 (built Tue, 20 Jun 2006 01:35:45 +0000) X-SA-Exim-Scanned: Yes (on vavatch.codon.org.uk) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 09, 2007 at 01:29:05PM +0000, Pavel Machek wrote: > Hi! > > Can we get them? They are neccessary for debugging 'what in suspend > calls fuse' problem. And yes, that problem is there even when you > remove freezer. I can produce them, but haven't managed to do that in any way that lets me get them off the system yet. > Matthew, you seem to be the only one able to produce them... sys_sync may not do anything on a fuse filesystem, but if you've loopback-mounted an ext3 filesystem from that fuse filesystem then it's going to result in writes to it and deadlock. -- Matthew Garrett | mjg59@srcf.ucam.org