From owner-freebsd-hackers  Wed Apr 23 11:26:17 1997
Return-Path: <owner-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id LAA15069
          for hackers-outgoing; Wed, 23 Apr 1997 11:26:17 -0700 (PDT)
Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.50])
          by hub.freebsd.org (8.8.5/8.8.5) with SMTP id LAA15064
          for <hackers@freebsd.org>; Wed, 23 Apr 1997 11:26:15 -0700 (PDT)
Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id LAA29412; Wed, 23 Apr 1997 11:20:39 -0700
From: Terry Lambert <terry@lambert.org>
Message-Id: <199704231820.LAA29412@phaeton.artisoft.com>
Subject: Re: Can't put 512MB ram in box ... Extended memory question.
To: langfod@dihelix.com (David Langford)
Date: Wed, 23 Apr 1997 11:20:39 -0700 (MST)
Cc: msmith@atrad.adelaide.edu.au, joe@via.net, mrcpu@cdsnet.net,
        hackers@freebsd.org
In-Reply-To: <199704230411.SAA01625@caliban.dihelix.com> from "David Langford" at Apr 22, 97 06:11:11 pm
X-Mailer: ELM [version 2.4 PL24]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> Is it my imagination or doesnt BSDI handle this fairly automagically?

Yeah.  The use the standard BIOS calls to get the size, then they
don't override it with CMOS size later on like FreeBSD does.

> Also what are the consequences of setting MAXMEM to a high number
> even on low memory machine. 

Depends on the machine.  It won't be good when the kernel tries to
allocate pages in non-existant chips, no matter what.  Many machines
mirror; some just reboot.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.