From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754677AbXDYFzN (ORCPT ); Wed, 25 Apr 2007 01:55:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423212AbXDYFzN (ORCPT ); Wed, 25 Apr 2007 01:55:13 -0400 Received: from smtp1.linux-foundation.org ([65.172.181.25]:40467 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754677AbXDYFzL (ORCPT ); Wed, 25 Apr 2007 01:55:11 -0400 Date: Tue, 24 Apr 2007 22:54:29 -0700 From: Andrew Morton To: "Miles Lane" Cc: LKML , "Rafael J. Wysocki" , "Oleg Nesterov" Subject: Re: 2.6.21-rc7-mm1 + sysfs-oops-workaround.patch -- software suspend failed (1 tasks refusing to freeze) Message-Id: <20070424225429.544075c8.akpm@linux-foundation.org> In-Reply-To: References: <20070424224137.0ccf7874.akpm@linux-foundation.org> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.17; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 24 Apr 2007 22:49:48 -0700 "Miles Lane" wrote: > On 4/24/07, Andrew Morton wrote: > > On Tue, 24 Apr 2007 22:27:44 -0700 "Miles Lane" wrote: > > > > > [ 1251.506964] PM: Preparing system for mem sleep > > > [ 1251.514790] Stopping tasks ... > > > [ 1271.456065] Stopping user space processes timed out after 20 > > > seconds (1 tasks refusing to freeze): > > > [ 1271.456243] multiload-apple > > > [ 1271.456291] Restarting tasks ... done. > > > > > > This isn't happening under earlier builds I've tested. How can I debug this? > > > > > > > hm, that's multiload-applet, some gnome thing. > > > > sysrq-T, perhaps? Perhaps the process is sleeping in the kernel somewhere. > > Should I wait for the next patch from Tejun before retesting? Perhaps > this suspend problem is a side effect of the locking problem he > mentioned. It's unlikely to be related to Tejun's sysfs changes.