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Message-ID:	<1082306435.4082af8343d24@webmail.mit.edu>
Date:	Sun, 18 Apr 2004 12:40:35 -0400
From:	Sophia C Yuditskaya <scyudits AT MIT DOT EDU>
To:	cygwin AT cygwin DOT com
Cc:	scyudits AT MIT DOT EDU
Subject:	seg fault via cygwin1!aclcheck() ?
MIME-Version:	1.0
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X-Originating-IP:	146.115.72.177

Hi,

I am running ns on cygwin, and after my program executes for a while with no
problems, suddenly I get a seg fault with the following backtrace (in gdb):

Program received signal SIGSEGV, Segmetation fault.
0x610ab27b in random () from /usr/bin/cygwin1.dll
(gdb) backtrace
#0 0x610ab27b in random () from /usr/bin/cygwin1.dll
#1 0x610550c6 in localtime_r () from /usr/bin/cygwin1.dll
#2 0x61086751 in cygwin1!aclcheck () from /usr/bin/cygwin1.dll
...(the rest of the trace is from my ns code)

What is wrong? It seems like a permissions problem, but my code is not writing
to a file. Although my code reads from a file, this seg fault occurs after a
great many lines have been already read from this file. Based on the back
trace, the seg fault does not occur at a point where the file is read anyway. 

How can I fix this?

Thanks,

Sophia

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