From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <455B98AA.3040904@mbligh.org> Date: Wed, 15 Nov 2006 14:46:02 -0800 From: Martin Bligh MIME-Version: 1.0 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: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Christian Krafft , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org