Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161757AbXEBHpj (ORCPT ); Wed, 2 May 2007 03:45:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161760AbXEBHpi (ORCPT ); Wed, 2 May 2007 03:45:38 -0400 Received: from ns1.suse.de ([195.135.220.2]:58096 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161757AbXEBHpg (ORCPT ); Wed, 2 May 2007 03:45:36 -0400 Date: Wed, 2 May 2007 00:43:05 -0700 From: Greg KH To: Andrew Morton Cc: Tilman Schmidt , Kay Sievers , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Nick Piggin , Hugh Dickins Subject: Re: 2.6.21-rc7-mm2 crash: Eeek! page_mapcount(page) went negative! (-1) Message-ID: <20070502074305.GA7761@suse.de> References: <20070425225716.8e9b28ca.akpm@linux-foundation.org> <46338AEB.2070109@imap.cc> <20070428141024.887342bd.akpm@linux-foundation.org> <4636248E.7030309@imap.cc> <20070430112130.b64321d3.akpm@linux-foundation.org> <46364346.6030407@imap.cc> <20070430124638.10611058.akpm@linux-foundation.org> <46383742.9050503@imap.cc> <20070502001000.8460fb31.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070502001000.8460fb31.akpm@linux-foundation.org> User-Agent: Mutt/1.5.15 (2007-04-06) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1408 Lines: 43 On Wed, May 02, 2007 at 12:10:00AM -0700, Andrew Morton wrote: > On Wed, 02 May 2007 09:01:22 +0200 Tilman Schmidt wrote: > > > Am 30.04.2007 21:46 schrieb Andrew Morton: > > > Not really - everything's tangled up. A bisection search on the > > > 2.6.21-rc7-mm2 driver tree would be the best bet. > > > > And the winner is: > > > > gregkh-driver-driver-core-make-uevent-environment-available-in-uevent-file.patch > > > > Reverting only that from 2.6.21-rc7-mm2 gives me a working kernel > > again. > > cripes. > > +static ssize_t show_uevent(struct device *dev, struct device_attribute *attr, > + char *buf) > +{ > + struct kobject *top_kobj; > + struct kset *kset; > + char *envp[32]; > + char data[PAGE_SIZE]; > > That won't work too well with 4k stacks. Wait, even though this isn't good, it shouldn't have been hit by anyone, that file used to not be readable, so I doubt userspace would have been trying to read it... Tilman, what version of HAL and udev do you have on your machine? Kay, did you get the 'read the uevent file' code already into udev and/or HAL? thanks, greg k-h - 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/