linux-kernel - Re: [2.6.20][PATCH] fix mempolicy error check on a system with memory-less-node

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Message-Id: <20070208093740.70277c89.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 8 Feb 2007 09:37:40 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	ak@...e.de, linux-kernel@...r.kernel.org, y-goto@...fujitsu.com,
	clameter@...r.sgi.com
Subject: Re: [2.6.20][PATCH] fix mempolicy error check on a system with
 memory-less-node

On Wed, 7 Feb 2007 09:43:44 -0800
Andrew Morton <akpm@...ux-foundation.org> wrote:

> > > and to 
> > > accurately present the machine's topology to the user without us having to
> > > go adding falsehoods like this?
> > 
> > a node is a piece of memory. Without memory it doesn't make sense.
> 
> Who said?  I can pick up a piece of circuitry which has four CPUs and no
> RAM, wave it about then stick it in a computer.  The kernel is just wrong,
> surely?
> 
As far as I remember, this was the first e-mail which tells me that there are
- cpu only node
- device only node
- memory only node
during node-hot-plug discussion.

http://www.gelato.unsw.edu.au/archives/linux-ia64/0405/9679.html

Thanks,
-Kame

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