From: "Charles Sandmann" <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: sbrk(0) return value
Date: Sun, 13 Feb 2000 21:03:25
Organization: Aspen Technology, Inc.
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Message-ID: <38a71c1d.sandmann@clio.rice.edu>
References: <MsN45BA3Qrp4Ewjf AT lwithers DOT demon DOT co DOT uk>
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To: djgpp AT delorie DOT com
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> I'm currently playing around with the Quake source code. 

Warning 1.  Quake was delivered with V2.00beta3

> However, sometimes the program crashes due to a return value of sbrk(0)
> of 4292927536 (I'm not sure if this value changes between
> crashes/reboots/etc).

This will only happen if you are running under Windows, and your memory
is fragmented, and it returns a block below the current arena.  Since
the original Quake shipped with unixy sbrk() this never happened.

You can probably get the right behavior by setting some crt0 flags.