From owner-freebsd-questions@FreeBSD.ORG  Wed Aug 27 12:06:43 2003
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Date: Wed, 27 Aug 2003 21:06:26 +0200 (SAST)
From: Irvine Short <irvine@sanbi.ac.za>
To: David Landgren <david@landgren.net>
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Subject: Re: Large memory issues
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On Wed, 27 Aug 2003, David Landgren wrote:

> Irvine Short wrote:
> > I then found that this:
> > options         MAXDSIZ="(2048*1024*1024)"
> > options         MAXSSIZ="(128*1024*1024)" (and also 64MB)
> > options         DFLDSIZ="(512*1024*1024)"
> >
> > worked fine but not as expected - limit reports datasize unlimited.
>
> I've managed to crank it up as far as
>
> options MAXDSIZ="(3568*1024*1024)"

Cool! Although I tried 3500 & it blew up too...

> >   Hyperthreading: 2 logical CPUs
> > real memory  = 4025942016 (3931584K bytes)
> >
> > and then later it says on the console something like:
> > 256MB of RAM over 4GB ignored.
> >
> > Seems silly to waste 256MB RAM so any hints would be appreciated here
> > too.
>
> How can you address more than 2^32 bytes of RAM with a 32 bit
> processor? :)

Yeah, I know about PAE, but it's a 4GB machine so why is there 256MB over
the 4GB limit?

Thanks for the advice though...

Irvine

Sys Admin
SANBI, University of the Western Cape, South Africa
http://www.sanbi.ac.za
tel: +27-21-959 3645
cel: +27-82-494 3828