Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162125AbWKPApA (ORCPT ); Wed, 15 Nov 2006 19:45:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1162126AbWKPApA (ORCPT ); Wed, 15 Nov 2006 19:45:00 -0500 Received: from wx-out-0506.google.com ([66.249.82.225]:48845 "EHLO wx-out-0506.google.com") by vger.kernel.org with ESMTP id S1162125AbWKPAo7 (ORCPT ); Wed, 15 Nov 2006 19:44:59 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=INp9fRGHdbet+e+SyFYSJkJjIYLS1btp4/+beer7xhQMe8vREvUW2jRJt6yVqrFhidq2G0TR0ZA0LAWe4c+rtNU75zWNRXtrSsOTztYfqkF2I8y4kg8mk82yzVNDNEiPmFvvDbuB6vevDdZSRgXlnSBEnSFWB1MLY3DwIND8+II= Message-ID: <9a8748490611151644m5420fd9claf8212f98a6ad4e2@mail.gmail.com> Date: Thu, 16 Nov 2006 01:44:58 +0100 From: "Jesper Juhl" To: "Christoph Lameter" Subject: Re: [patch 2/2] enables booting a NUMA system where some nodes have no memory Cc: "Martin Bligh" , "Christian Krafft" , linux-mm@kvack.org, linux-kernel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20061115193049.3457b44c@localhost> <20061115193437.25cdc371@localhost> <455B8F3A.6030503@mbligh.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1121 Lines: 30 On 15/11/06, 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? > What about SMP Opteron boards that have RAM slots for each CPU? With two (or more) CPU's and only memory slots populated for one of them, wouldn't that count as multiple NUMA nodes but only one of them with memory? That would seem to be a pretty common thing that could happen. -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html - 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/