R. David Murray <rdmur...@bitdance.com> added the comment:

The failing test is launching a subprocess to compile python code, waiting for 
the subprocess to exit, and then checking to see if the file was created.  So 
the timing issue would appear to be that the file created by the subprocess 
doesn't appear to exist to the main program even after the subprocess has 
exited.  Stefan, Jesus, do either of you know of anything about the file 
systems used on your buildbots that might give rise to this problem?  Is there 
some sort of file system sync call we need to make to make sure different 
processes have the same view of the file system?

However, if my theory is true I would expect that other tests in 
test_compileall would also fail randomly.  Does anyone know if it is always 
test_regexp?

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nosy: +jcea, skrah

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue11873>
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