Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162156AbWKPB5h (ORCPT ); Wed, 15 Nov 2006 20:57:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1162158AbWKPB5h (ORCPT ); Wed, 15 Nov 2006 20:57:37 -0500 Received: from omx1-ext.sgi.com ([192.48.179.11]:50830 "EHLO omx1.sgi.com") by vger.kernel.org with ESMTP id S1162156AbWKPB5h (ORCPT ); Wed, 15 Nov 2006 20:57:37 -0500 Date: Wed, 15 Nov 2006 17:57:27 -0800 (PST) From: Christoph Lameter To: Jack Steiner cc: Christian Krafft , linux-mm@kvack.org, Martin Bligh , linux-kernel@vger.kernel.org Subject: Re: [patch 2/2] enables booting a NUMA system where some nodes have no memory In-Reply-To: <20061116013534.GB1066@sgi.com> Message-ID: References: <20061115193049.3457b44c@localhost> <20061115193437.25cdc371@localhost> <20061115215845.GB20526@sgi.com> <20061116013534.GB1066@sgi.com> 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: 842 Lines: 19 On Wed, 15 Nov 2006, Jack Steiner wrote: > I doubt that there is a demand for systems with memoryless nodes. However, if the > DIMM(s) on a node fails, I think the system may perform better > with the cpus on the node enabled than it will if they have to be > disabled. Right now we do not have the capability to remove memory from a node while the system is running. If the DIMMs have failed and we boot up and the systems finds out that there is no memory on that node then the cpus can be remapped to the next memory node. That is better than having lots of useless structures allocated. - 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/