From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751621Ab2DOScN (ORCPT ); Sun, 15 Apr 2012 14:32:13 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:44114 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750958Ab2DOScI (ORCPT ); Sun, 15 Apr 2012 14:32:08 -0400 From: "Rafael J. Wysocki" To: Thomas Meyer Subject: Re: 3.3.2 - Crash in kthread_data (power_supply_core/led?) Date: Sun, 15 Apr 2012 20:36:41 +0200 User-Agent: KMail/1.13.6 (Linux/3.4.0-rc2+; KDE/4.6.0; x86_64; ; ) Cc: Linux Kernel Mailing List , cbou@mail.ru, stern@rowland.harvard.edu, Linux PM list References: <1334481858.1444.20.camel@localhost.localdomain> In-Reply-To: <1334481858.1444.20.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Message-Id: <201204152036.41938.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sunday, April 15, 2012, Thomas Meyer wrote: > Hi, > > I resumed my computer from RAM today and found this crash on the text > console -> see attachment. One LED was blinking, (PS2 attached) keyboard > didn't react anymore and I had to reboot my machine. > > I couldn't capture the whole dump, the crash didn't made it to the log > on disk, so I only have this screenshot. It's the first time I see this > crash with any kernel. I did update to 3.3.2 yesterday, but maybe this > is unrelated. > > The crash looks like the power_supply_core/led wants to send some event > and then things goes awry. This looks like a delayed work item triggering at a wrong time. I guess that the leds' suspend forgets to cancel its delayed work itmes which then may be started during system resume. Thanks, Rafael