Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753784Ab0LFQ2V (ORCPT ); Mon, 6 Dec 2010 11:28:21 -0500 Received: from g1t0029.austin.hp.com ([15.216.28.36]:4213 "EHLO g1t0029.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750774Ab0LFQ2U (ORCPT ); Mon, 6 Dec 2010 11:28:20 -0500 From: Bjorn Helgaas To: Tobias Karnat Subject: Re: acpi_button: random oops on boot Date: Mon, 6 Dec 2010 09:28:11 -0700 User-Agent: KMail/1.13.2 (Linux/2.6.32-25-generic; KDE/4.4.2; x86_64; ; ) Cc: linux-acpi@vger.kernel.org, "linux-kernel@vger.kernel.org" , richard.coe@med.ge.com, jslaby@novell.com References: <1291477752.5096.27.camel@Tobias-Karnat> In-Reply-To: <1291477752.5096.27.camel@Tobias-Karnat> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201012060928.11307.bjorn.helgaas@hp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1322 Lines: 34 On Saturday, December 04, 2010 08:49:12 am Tobias Karnat wrote: > I have a problem with random oopses on boot, > every 1 out of 5 times I boot linux freezes. > > I was not able to obtain a call trace, however it happens around 10-15 > seconds after boot. I can hear that the tg3 driver is initialised. > > In this thread, they have the same problem: > https://bugzilla.novell.com/show_bug.cgi?id=647029 Wow, that's a nasty problem. > Applying the patch from the thread, makes the problem occurring less > often and dmesg shows acpi-button loads for me on hid PNP0C0C and > LNXPWRBN. > > Maybe commit e2fb9754d27513918a4936e8cbaad50ff56cfd3d > ACPI: button: remove unnecessary null pointer checks > has unmasked an underlying problem? The oopses from the bugzilla are not the sort I would expect from a null pointer dereference, but since it's fairly reproducible for you, it might be worth reverting e2fb9754d27 to see whether it makes any difference. Does Rich's script from https://bugzilla.novell.com/show_bug.cgi?id=647029#c30 help you reproduce the problem? Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/