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Date:	Wed, 02 Jan 2013 12:10:31 +0100
From:	tobias schlottke <tobias DOT schlottke AT secu DOT lu>
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Subject:	fatal error - cygheap base mismatch detected (2nd attempt)
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Hi

I have a cygwin terminal window open and I try to execute a perl program 
and get the following message:

=======
       5 [main] perl 8172 C:\cygwin\bin\perl.exe: *** fatal error - 
cygheap base mismatch detected - 0x61239790/0xC79790.
This problem is probably due to using incompatible versions of the 
cygwin DLL.
Search for cygwin1.dll using the Windows Start->Find/Search facility
and delete all but the most recent version.  The most recent version 
*should*
reside in x:\cygwin\bin, where 'x' is the drive on which you have
installed the cygwin distribution.  Rebooting is also suggested if you
are unable to find another cygwin DLL.
=======

The cygwin1.dll is in the c:\cygwin\bin directory and additionally on a 
different place at c:\Program Files\openFT\bin\cygwin1.dll which is not 
in my PATH.
(Both files are identical).

At the time of the error I had a second cygwin terminal already open. 
After the failure in the first window I executed the command in the 
second one and it executed successfully.
The funny thing is: If I try in the first window again, it runs fine....

a) Why?
b) What do I have to change to make it run always?

Things I tried:
Reboot, rebaseAll.

System:
Windows 7 Enterprise Ver 6.1 Build 7600

Cygwin:
  2586k 2010/08/31 C:\cygwin\bin\cygwin1.dll
     Cygwin DLL version info:
         DLL version: 1.7.7
         DLL epoch: 19
         DLL old termios: 5
         DLL malloc env: 28
         Cygwin conv: 181
         API major: 0
         API minor: 230
         Shared data: 5
         DLL identifier: cygwin1
         Mount registry: 3
         Cygwin registry name: Cygwin
         Program options name: Program Options
         Installations name: Installations
         Cygdrive default prefix:
         Build date:
         Shared id: cygwin1S5

Any hints appreciated.
Thanks,
Tobias


 



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