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Date: Mon, 17 Oct 2011 23:40:39 +0300
From: ygrek <ygrekheretix@gmail.com>
To: caml-list@inria.fr
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Subject: Re: [Caml-list] ocamlrun: Segmentation fault (core dumped)

On Mon, 17 Oct 2011 18:32:53 +0200
Emmanuel Dieul <emmanuel.dieul@free.fr> wrote:

> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 6724.0x14ac]
> 0x610e73da in pthread::thread_init_wrapper(void*) () from /cygdrive/l/programmation/cygwin/bin/cygwin1.dll
> (gdb) backtrace
> #0  0x610e73da in pthread::thread_init_wrapper(void*) () from /cygdrive/l/programmation/cygwin/bin/cygwin1.dll
> #1  0x762b2ad6 in OutputDebugStringA () from /cygdrive/c/Windows/syswow64/KERNELBASE.dll
> #2  0x40010006 in ?? ()
> #3  0x00000000 in ?? ()
> (gdb)
> So, it seems cygwin is in trouble with my program... Damn !

OutputDebugStringA means there should be some useful info.
Run it under windbg to see the message.
Also look into system event logs.

-- 
 ygrek
 http://ygrek.org.ua