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Date: Tue, 07 May 2002 22:33:24 -0700
From: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
Reply-To: "Martin J. Bligh" <Martin.Bligh@us.ibm.com>
To: Robert Love <rml@tech9.net>, Clifford White <ctwhite@us.ibm.com>
cc: linux-kernel@vger.kernel.org
Subject: Re: x86 question: Can a process have > 3GB memory?
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> You can go to 3.5GB, anything more and stuff starts getting real tight
> and not very nice.  You can only do 3.5/0.5 on non-PAE, though - PAE
> requires segments to be aligned on 1GB-boundaries.
> 
> The attached patch (for which credit goes elsewhere - Ingo or Randy, I
> think?) implements the full range of 1 to 3.5GB user space partitioning,
> selectable at compile-time.

The trouble with this is that on a machine with enough memory to
make it worthwhile, it normally just runs you out of zone_normal
instead ;-(

M.