Comment #4 on issue 995 by pekka.klarck: Mac OS X: IOError: [Errno 35] Resource temporarily unavailable
http://code.google.com/p/robotframework/issues/detail?id=995
Your analysis sounds logical. Have you tested can you reproduce the problem w/o Robot by writing a lot of stuff to sys.stdout and then closing it?
The fact we haven't heard about this earlier could be related to you having a fast machine and people not using Fatal Error (or other ways to stop execution like that) that often.
Good to hear you haven't seen the problem since you added the fix. In two weeks we might be pushing out first RF 2.7 preview releases so that's a good timeline to get the fix in.
