From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261399AbVFFOyr (ORCPT ); Mon, 6 Jun 2005 10:54:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261485AbVFFOyr (ORCPT ); Mon, 6 Jun 2005 10:54:47 -0400 Received: from cavan.codon.org.uk ([213.162.118.85]:31931 "EHLO cavan.codon.org.uk") by vger.kernel.org with ESMTP id S261399AbVFFOyp (ORCPT ); Mon, 6 Jun 2005 10:54:45 -0400 Date: Mon, 6 Jun 2005 15:54:29 +0100 From: Matthew Garrett To: Pavel Machek Cc: acpi-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: Bizarre oops after suspend to RAM (was: Re: [ACPI] Resume from Suspend to RAM) Message-ID: <20050606145429.GA18396@srcf.ucam.org> References: <200506051456.44810.hugelmopf@web.de> <1117978635.6648.136.camel@tyrosine> <200506051732.08854.stefandoesinger@gmx.at> <1118053578.6648.142.camel@tyrosine> <1118056003.6648.148.camel@tyrosine> <20050606144501.GB2243@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050606144501.GB2243@elf.ucw.cz> User-Agent: Mutt/1.5.6+20040907i X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 06, 2005 at 04:45:01PM +0200, Pavel Machek wrote: > NULL pointer dereference in filp_open; whats that strange about it? > Use printks to debug this one, nothing mysterious. I can't see any way that a null pointer could get to filp_open without something already being very wrong - the kernel worked fine before suspend. Unfortunately, that's the one occasion that we've got the machine (an HP nc4000) to resume. Since then, it simply freezes before hitting "Back to C" despite having had no kernel or configuration changes. The behaviour is very non-deterministic, which makes me wonder about something in the suspend or resume process damaging state. -- Matthew Garrett | mjg59@srcf.ucam.org