Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162027AbWKOWqF (ORCPT ); Wed, 15 Nov 2006 17:46:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1162029AbWKOWqF (ORCPT ); Wed, 15 Nov 2006 17:46:05 -0500 Received: from dvhart.com ([64.146.134.43]:4250 "EHLO dvhart.com") by vger.kernel.org with ESMTP id S1162027AbWKOWqD (ORCPT ); Wed, 15 Nov 2006 17:46:03 -0500 Message-ID: <455B98AA.3040904@mbligh.org> Date: Wed, 15 Nov 2006 14:46:02 -0800 From: Martin Bligh User-Agent: Thunderbird 1.5.0.5 (X11/20060728) MIME-Version: 1.0 To: Christoph Lameter Cc: Christian Krafft , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [patch 2/2] enables booting a NUMA system where some nodes have no memory References: <20061115193049.3457b44c@localhost> <20061115193437.25cdc371@localhost> <455B8F3A.6030503@mbligh.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 946 Lines: 30 Christoph Lameter wrote: > On Wed, 15 Nov 2006, Martin Bligh wrote: > >> A node is an arbitrary container object containing one or more of: >> >> CPUs >> Memory >> IO bus >> >> It does not have to contain memory. > > I have never seen a node on Linux without memory. I have seen nodes > without processors and without I/O but not without memory.This seems to be > something new? A node was always defined that way. Search back a few years in the lkml archives. We may be finding bugs in the implementation, but the definition has not changed. Supposing we hot-unplugged all the memory in a node? Or seems to have happened in this instance is boot with mem=, cutting out memory on that node. M. - 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/