From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423236AbXDYGlg (ORCPT ); Wed, 25 Apr 2007 02:41:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1423238AbXDYGlg (ORCPT ); Wed, 25 Apr 2007 02:41:36 -0400 Received: from nz-out-0506.google.com ([64.233.162.236]:51516 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423237AbXDYGld (ORCPT ); Wed, 25 Apr 2007 02:41:33 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Hjhwh1yqdBVmkMXTnApQG2jYUzYeXbhQnxFv9cqURF8K8KCxdSbbABHO+vouByJCvza4Pn045QznwxXNjGWakS9QZPcUVUM/Sw+FycBIb3ZD0OgmvjmXxn2HYGp27uSUTS9rGvbfqnhpFcXmVwTxcwBze4BVUPV7S+oBBJvTSkI= Message-ID: Date: Tue, 24 Apr 2007 23:41:32 -0700 From: "Miles Lane" To: "Andrew Morton" Subject: Re: 2.6.21-rc7-mm1 + sysfs-oops-workaround.patch -- software suspend failed (1 tasks refusing to freeze) Cc: LKML , "Rafael J. Wysocki" , "Oleg Nesterov" In-Reply-To: <20070424225429.544075c8.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070424224137.0ccf7874.akpm@linux-foundation.org> <20070424225429.544075c8.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 4/24/07, Andrew Morton wrote: > 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. > I tried to reproduce this, but this time when I tried to suspend, the machine just hung with a message showing saying the system was suspending. When I touched my Synaptics mousepad after about ten seconds of waiting, the system suddenly suspended. Upon resuming, I checked dmesg and found the time seems to be totally out of whack: [ 1334.589074] pci 0000:00:1f.6: LATE suspend [ 1334.589080] Intel ICH 0000:00:1f.5: LATE suspend [ 1334.589085] pci 0000:00:1f.3: LATE suspend [ 1334.589091] pci 0000:00:1f.0: LATE suspend [ 1334.589096] pci 0000:00:1e.0: LATE suspend, may wakeup [ 1334.589102] pci 0000:00:02.1: LATE suspend [ 1334.589108] pci 0000:00:02.0: LATE suspend [ 1334.589113] pci 0000:00:00.3: LATE suspend [ 1334.589118] pci 0000:00:00.1: LATE suspend [ 1334.589124] agpgart-intel 0000:00:00.0: LATE suspend [ 1334.589733] hwsleep-0323 [03] enter_sleep_state : Entering sleep state [S3] [18014527.889728] Intel machine check architecture supported. [18014527.889749] Intel machine check reporting enabled on CPU#0. [18014527.889783] Back to C! [18014527.889783] agpgart-intel 0000:00:00.0: EARLY resume [18014527.889783] PCI: Calling quirk c01c94b2 for 0000:00:00.0