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Date: Mon, 9 Jul 2001 15:10:31 -0300 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: "Ernest N. Mamikonyan" <ernest@newton.physics.drexel.edu>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: increasing the TASK_SIZE
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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.

Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

http://www.surriel.com/		http://distro.conectiva.com/

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