From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 15 Nov 2006 17:57:27 -0800 (PST) From: Christoph Lameter 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: owner-linux-mm@kvack.org Return-Path: To: Jack Steiner Cc: Christian Krafft , linux-mm@kvack.org, Martin Bligh , linux-kernel@vger.kernel.org List-ID: 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, 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