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

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Message-ID: <Pine.LNX.4.64.0706112239080.19578@fbirervta.pbzchgretzou.qr>
Date:	Mon, 11 Jun 2007 22:44:26 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Dave Jones <davej@...hat.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 Jun 11 2007 12:01, H. Peter Anvin wrote:
>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?
>
>Does current kernels work at all on a 5 MB machine?
>
>(I used Linux on a 5 MB machine many years ago, but modern kernels are a
>different issue...)

Yes, I ran an unmodified 2.6.13 with a minimal but somewhat minimal
userspace (sash, glibc) on an fpu-less 386.
http://jengelh.hopto.org/GFX/mach/386sx.jpg
http://jengelh.hopto.org/GFX/mach/proc386.jpg
(yay, 3.09 bogomips and a totally incapable processor :p)
Have not tried more recent kernels yet though.


	Jan
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