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From:	"Jon A. Lambert" <jlsysinc AT alltel DOT net>
To:	<cygwin AT cygwin DOT com>
Subject:	Unable to produce core dumps
Date:	Tue, 18 Feb 2003 23:44:18 -0500
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I am unable to get the dumper utility to produce a core dump.
My cygwin.bat startup file contains the following:

set CYGWIN=error_start=c:\cygwin\bin\dumper.bat

My dumper.bat file contains the following:

dumper.exe -d %1 %2 %3
pause

The program in question was compiled with the gcc -g option:

main() {
  int h;
  h = 1 / 0;
}

Upon execution I see the following in the cygwin console:

$ ./div.exe
      7 [main] div 2296 handle_exceptions: Error while dumping state (probably corrupted stack)
Arithmetic exception (core dumped)

In the cmd.exe console window that dumper.bat starts I see the following:

C:\cygwin\home\admin>dumper.exe -d C:/cygwin/home/jlambert/div.exe 1884
dumping process #1884 to div.exe.core
setting bfd architecture: No error

C:\cygwin\home\admin>pause
Press any key to continue . . .

Yet no .core file is produced anywhere.  
I have also tried using dumper.exe directly with the following setting with the same results.
  set CYGWIN=error_start=c:\cygwin\bin\dumper.exe

And I have verified that the process number above is correct.
What am I doing wrong?  

I am on the following release:

 Cygwin DLL version info:
     DLL version: 1.3.20
     DLL epoch: 19
     DLL bad signal mask: 19005
     DLL old termios: 5
     DLL malloc env: 28
     API major: 0
     API minor: 73
     Shared data: 3
     DLL identifier: cygwin1
     Mount registry: 2
     Cygnus registry name: Cygnus Solutions
     Cygwin registry name: Cygwin
     Program options name: Program Options
     Cygwin mount registry name: mounts v2
     Cygdrive flags: cygdrive flags
     Cygdrive prefix: cygdrive prefix
     Cygdrive default prefix:
     Build date: Sat Feb 8 12:10:49 EST 2003
     Shared id: cygwin1S3





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