From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754280AbYBEMcS (ORCPT ); Tue, 5 Feb 2008 07:32:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752099AbYBEMcL (ORCPT ); Tue, 5 Feb 2008 07:32:11 -0500 Received: from E23SMTP04.au.ibm.com ([202.81.18.173]:36810 "EHLO e23smtp04.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751932AbYBEMcJ (ORCPT ); Tue, 5 Feb 2008 07:32:09 -0500 Message-ID: <47A856E1.4040703@linux.vnet.ibm.com> Date: Tue, 05 Feb 2008 18:00:25 +0530 From: Balbir Singh Reply-To: balbir@linux.vnet.ibm.com Organization: IBM User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Andrew Morton CC: Kamalesh Babulal , LKML , mingo@elte.hu, tglx@linutronix.de, apw@shadowen.org, randy.dunlap@oracle.com, linux-mm@kvack.org Subject: Re: [BUG] regression from 2.6.24-rc8-mm1 and 2.6.24-mm1 kernel panic while bootup References: <47A81BC9.5060600@linux.vnet.ibm.com> <20080205002544.264a9484.akpm@linux-foundation.org> In-Reply-To: <20080205002544.264a9484.akpm@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: > On Tue, 05 Feb 2008 13:48:17 +0530 Kamalesh Babulal wrote: > [snip] > argh, I'd forgotten about that. You bisected it down to a clearly-innocent > patch and none of the mm developers appeared interested. > > Oh well, it'll probably be in mainline tomorrow. That should get it > fixed. We've tracked this down to a problem where the nodeid might be invalid. Kamalesh is investigating problem. We suspect we are doing a kmalloc_node with an invalid nodeid. We see cpu with no node 2, num_online_nodes 1 cpu with no node 3, num_online_nodes 1 in the bootlog. Kamalesh verified that the problem exists with both slub and slab. -- Warm Regards, Balbir Singh Linux Technology Center IBM, ISTL