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Message-ID: <3B4A5D16.45954897@acm.org>
Date: Tue, 10 Jul 2001 11:40:38 +1000
From: Gareth Hughes <gareth.hughes@acm.org>
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To: Rik van Riel <riel@conectiva.com.br>
CC: "Ernest N. Mamikonyan" <ernest@newton.physics.drexel.edu>,
        linux-kernel@vger.kernel.org
Subject: Re: increasing the TASK_SIZE
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Rik van Riel wrote:
> 
> On Thu, 5 Jul 2001, Ernest N. Mamikonyan wrote:
> 
> > I was wondering how I can increase the process address space, TASK_SIZE
> > (PAGE_OFFSET), in the current kernel. It looks like the 3 GB value is
> > hardcoded in a couple of places and is thus not trivial to alter. Is
> > there any good reason to limit this value at all, why not just have it
> > be the same as the max addressable space (64 GB)? We have an ix86 SMP
> > box with 4 GB of RAM and want to be able to allocate all of it to a
> > single program (physics simulation). I would greatly appreciate any help
> > on this.
> 
> The only way to achieve your goal would be to modify the
> hardware. What you want is not possible due to hardware
> limitations of the x86 platform.

I had a sneaking suspicion I didn't know what I was talking about. 
Should have read his original email a little closer :-)

-- Gareth
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