From:	john AT jpsc DOT co DOT uk (John Cooper)
Subject:	Re: Exception number: c0000005 (access violation)
25 Jun 1997 07:33:27 -0700 :
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> >I get this sometimes at RtlFreeHeap+0x21, on program runs with the same

> Your message came right after I started seeing these pop up with another 
> application I was extending.  This application has no relation to gnu-win32
> (God forbid!;-)).  It appears from the documentation that this is indicative
> of a memory overwrite situation.  You and I are both going to need some 
> memory debugging tools/gobs of time to track down our respective problems.
> Although I'll make no guarantees, I don't think your problem is specifically
> related to gnu-win32.  I know mine is not.

I think it must be b18 (or b18+Mingw32) related as I had the same program 
built with b17 running for several weeks of intensive testing. The only change I 
have made in going to b18+ming is to use time() instead of gettimeofday().

The problem is intermittent, the same run will sometimes crash, sometimes not. My 
client gets the same thing sometimes. I think the problem is corruption of the 
heap, but I can't think how to detect when it actually happens - my crash happens 
at the end of a long run which does thousands (millions?) of small allocations 
and deallocations of memory.
-- 
John Cooper (JPSC Ltd, UK)

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