From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936790AbXHHUjR (ORCPT ); Wed, 8 Aug 2007 16:39:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754194AbXHHUjF (ORCPT ); Wed, 8 Aug 2007 16:39:05 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:43608 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754175AbXHHUjD (ORCPT ); Wed, 8 Aug 2007 16:39:03 -0400 Date: Wed, 8 Aug 2007 13:39:02 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Arnd Bergmann cc: Lucio Correia , linux-kernel@vger.kernel.org, Arnd Bergmann Subject: Re: SLUB doesn't work with kdump kernel on Cell In-Reply-To: <200708082234.40104.arnd@arndb.de> Message-ID: References: <1186604151.3608.46.camel@localhost.localdomain> <200708082234.40104.arnd@arndb.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 8 Aug 2007, Arnd Bergmann wrote: > In the future, we also may have configurations where we need to run with > memoryless nodes on a production environment, so it should really just > work. Memoryless node support is work in progress currently in mm. You may encounter strange NUMA issues if you try to run a memoryless node right now. > What makes you assume that there is one page in the node? AFAICS, it > is a CPU-only node already without any pages. The boot output shows: Zone PFN ranges: DMA 0 -> 12288 Normal 12288 -> 12288 early_node_map[2] active PFN ranges 0: 0 -> 2560 1: 12287 -> 12288 Remove the page and you should be fine.