Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751014AbXBMRYk (ORCPT ); Tue, 13 Feb 2007 12:24:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751220AbXBMRYk (ORCPT ); Tue, 13 Feb 2007 12:24:40 -0500 Received: from omx1-ext.sgi.com ([192.48.179.11]:36731 "EHLO omx1.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751068AbXBMRYj (ORCPT ); Tue, 13 Feb 2007 12:24:39 -0500 Date: Tue, 13 Feb 2007 09:24:25 -0800 (PST) From: Christoph Lameter To: Andi Kleen cc: KAMEZAWA Hiroyuki , LKML , Andrew Morton , bob.picco@hp.com Subject: Re: [RFC] [PATCH] more support for memory-less-node. In-Reply-To: <200702130929.49349.andi@firstfloor.org> Message-ID: References: <20070213155736.1131d46a.kamezawa.hiroyu@jp.fujitsu.com> <200702130929.49349.andi@firstfloor.org> 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 Content-Length: 640 Lines: 15 On Tue, 13 Feb 2007, Andi Kleen wrote: > The trouble with this is that you'll need to harden large parts > of code against these. Especially a NULL pgdat is something quite > dangerous. You could make it a dummy empty pgdat, but just assigning it > nearby seems easier. Plus there is the issue of having a pgdat but without any valid zone in it. This is what triggered Kame-sans recent bug. - 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/