linux-kernel - Re: [patch 2/2] enables booting a NUMA system where some nodes have no memory

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Message-ID: <Pine.LNX.4.64.0611151323330.22074@schroedinger.engr.sgi.com>
Date:	Wed, 15 Nov 2006 13:24:55 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Christian Krafft <krafft@...ibm.com>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] enables booting a NUMA system where some nodes have
 no memory

On Wed, 15 Nov 2006, Christian Krafft wrote:

> When booting a NUMA system with nodes that have no memory (eg by limiting memory),
> bootmem_alloc_core tried to find pages in an uninitialized bootmem_map.

Why should we support nodes with no memory? If a node has no memory then 
its processors and other resources need to be attached to the nearest node 
with memory.

AFAICT The primary role of a node is to manage memory.
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