Fork errors in python2.7 on 64-bit Cygwin

Andrey Repin
Sun Feb 1 23:35:00 GMT 2015

Greetings, Michael Wild!

>>> * Trying to run a shell command from Python fails 50% of the time
>>> with: address space needed by 'cygz.dll' (0x450000) is already
>>> occupied.
>> Such a low address on 64bit is an indication of an image intercept
>> and/or BLODA in my experience.

> Thanks for your answer. Any suggestions on how I could find out what
> is causing this? I found Corinna mentioning the hacking of cygwin.dll
> by adding a call to sleep in the error handler in order to allow the
> inspection of /proc/$PID/maps in an old thread, but perhaps there is
> something more convenient now?

You can try enabling DLL inspection through CYGWIN environment variable for a

Andrey Repin ( 02.02.2015, <02:25>

Sorry for my terrible english...

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