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Message-ID:	<51EE7F43.30503@cornell.edu>
Date:	Tue, 23 Jul 2013 09:04:03 -0400
From:	Ken Brown <kbrown AT cornell DOT edu>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Win32 error in C program using openmp and fork()
References:	<57302C57257EF2428CCAAF9BA83EC0448222C0EA AT mbx08 DOT adf DOT bham DOT ac DOT uk> <20130722080657 DOT GD2661 AT calimero DOT vinschen DOT de> <51EE7700 DOT 50803 AT star DOT sr DOT bham DOT ac DOT uk>
In-Reply-To:	<51EE7700.50803@star.sr.bham.ac.uk>

On 7/23/2013 8:28 AM, Daniel Brown wrote:
> I've wiped my old version of Cygwin and installed it fresh on my computer
> and 1.7.21 doesn't work for me, either 32 or 64 bit. I have tried a Win
> 7 x86
> virtual machine and it worked, on a Win 8 x86 virtual machine though I see
> the same error. Therefore I guess it is a Windows 8 issue

No, I can reproduce it consistently on my Windows 7 system, running 
1.7.22, on both 32-bit and 64-bit.  It also just happened to me while 
running emacs.  This is not reproducible, but it was previously reported 
by another user:

   http://cygwin.com/ml/cygwin/2013-07/msg00198.html

On 64-bit, the output is

$ ./openmp-test.exe
I'm an openmp thread...
I'm an openmp thread...
I'm an openmp thread...
I'm an openmp thread...
Parent fork
       0 [main] openmp-test 6640 
C:\cygwin64\home\kbrown\openmp-test.exe: *** fatal error in forked 
process - failed to create new win32 semaphore, currentvalue 4294967294, 
Win32 error 87

Ken

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