Re: work around 1GB heap size limit

[Rik van Riel <riel@humbolt.geo.uu.nl>]

On Sat, 2 Jan 1999, Raymond Nijssen wrote:

> I was wondering if there exists a general way to work around the
> maximum heap size limit of 1 GB on Linux.  (at least on the x86
> platforms).

[snip]

> The proposal is really whether it would be possible to make the
> mappable region start at max_stack and to make it grow downward.
> 
> The proposed segmentation looks like:
> 
> 0xc0000000 - 0xffffffff : kernel memory
> min_stack  - 0xc0000000 : user stack                      -- grows downward
> MIN_mmap   - min_stack  : mapped (mmap, shared mem/libs)  -- grows DOWNward
> 'brk'      - MIN_mmap   : free
> `end'      - 'brk'      : heap                            -- grows upward
> 0x00000000 - 'end'      : text, bss, etc.

This seems like a more-than-just-a-little-bit sane idea
to me.  Like Raymond, I'm not completely aware of the
bolts and nuts we might be provoking with this action
though...

Stephen, Ben, what do you think? Did Raymond overlook
something or do we have a winner?

cheers,

Rik -- If a Microsoft product fails, who do you sue?
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