From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758731AbYAYWgX (ORCPT ); Fri, 25 Jan 2008 17:36:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753902AbYAYWgM (ORCPT ); Fri, 25 Jan 2008 17:36:12 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:44594 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752308AbYAYWgL (ORCPT ); Fri, 25 Jan 2008 17:36:11 -0500 Date: Fri, 25 Jan 2008 23:35:56 +0100 From: Ingo Molnar To: Greg KH Cc: Yinghai Lu , Linux Kernel Mailing List , Linus Torvalds Subject: Re: threshold_init_device/kobject_uevent_env oops Message-ID: <20080125223556.GB24708@elte.hu> References: <86802c440801251305u21517078y12ff68ef3015aaae@mail.gmail.com> <20080125221548.GA15172@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080125221548.GA15172@suse.de> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Greg KH wrote: > On Fri, Jan 25, 2008 at 01:05:40PM -0800, Yinghai Lu wrote: > > current linus tree + x86.git > > > > got > > > > Calling initcall 0xffffffff80b93d98: threshold_init_device+0x0/0x3f() > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 > > IP: [] kobject_uevent_env+0x2a/0x3d9 > > Does this happen on just Linus's tree? > > Can you send me a .config file for this? > > What is threshold_init()? Is it something new in the x86.git tree? no. A quick grep shows that it is in a file that _your_ changes in Linus' latest have touched: arch/x86/kernel/cpu/mcheck/mce_amd_64.c via: Author: Greg Kroah-Hartman Date: Thu Dec 20 08:13:05 2007 -0800 Kobject: convert arch/* from kobject_unregister() to kobject_put() Author: Greg Kroah-Hartman Date: Wed Dec 19 09:23:20 2007 -0800 Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use kobject_init_ commit a521cf209c6e7042f85b2c5b16da3ffa8004fb7b Author: Greg Kroah-Hartman Date: Wed Dec 19 09:23:20 2007 -0800 Kobject: change arch/x86/kernel/cpu/mcheck/mce_amd_64.c to use kobject_creat x86.git changed nothing to cause a crash in kobject_uevent_env(), and nothing has changed anything near this code anyway. We havent had a runtime (non-boot related) crash in x86.git for quite some time. It's rock solid and dependable, and the only significant change today were your upstream kobject commits. Ingo