linux-kernel - Re: [PATCH] move the kernel to 16MB for NUMA-Q

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Message-ID: <20070611184621.GA25371@redhat.com>
Date:	Mon, 11 Jun 2007 14:46:21 -0400
From:	Dave Jones <davej@...hat.com>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>,
	Steve Fox <drfickle@...ibm.com>, Mel Gorman <mel@....ul.ie>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] move the kernel to 16MB for NUMA-Q

On Mon, Jun 11, 2007 at 08:19:57PM +0200, Jan Engelhardt wrote:
 > 
 > On Jun 11 2007 10:36, H. Peter Anvin wrote:
 > >
 > >Picking the 16 MB base is a bit obnoxious on small-memory machines, 4 MB
 > >would probably be a more reasonable base.  Of course, 16 MB would avoid
 > >  the issue of the handful of machines with memory holes at 15-16 MB.
 > 
 > How will this work at all with a 5 MB machine?

Unless you're running with a bunch of CONFIG_EMBEDDED options enabled,
and a seriously pared down (almost to the point of uselessness)
userspace, you may have already lost.

Do such beasts even exist ?  My memories of low-memory x86en I had
only allowed power of 2 memory sizes.

	Dave

-- 
http://www.codemonkey.org.uk
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