From: "Charles Sandmann" <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: 4GB DPMI host
Date: Tue, 26 Oct 1999  0:12:38
Organization: Aspen Technology, Inc.
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Message-ID: <3814f1f6.sandmann@clio.rice.edu>
References: <000101bf1f3c$8fd716c0$ae3d7a86 AT phoenix DOT com>
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

> I am looking for a 4GB DPMI host, no virtual memory is required.

CWSDPMI r5's WIP supports 2Gb physical memory (and has been tested with 1Gb)
but access to more than 512Mb at a time is somewhat slow due to page 
directory faults.  Making it support more than 2Gb requires moving the
bitmap to > 64K in size and is a mess.

Is this for physical memory or for scanning the address space?  I'm thinking
about adding a hack for 4Mb pages which solves this problem - but it's 
probably not going to happen until February.