Le Fri, 25 Oct 2013 19:53:42 +0000, Jean-Pierre Flori a écrit : > Le Fri, 25 Oct 2013 17:08:50 +0200, Jean-Pierre Flori a écrit : >> This is true both with Cygwin's shipped Python 2.7.x and the one I >> built for Sage. >> Here is a small snippet of code reproducing the problem: >> """ >> [Blah python stuff] >>>>> from multiprocessing import Pool p = Pool(3) >>>>> p.map(anything suitable) >> ... >> ValueError: semaphore or lock released too many times """ >> This might be a problem with Python but I seem to remember succeeding >> in this test some time ago with the same version of Python. >> I tried Cygwin's GCC (4.7.3) and a custom built FSF GCC 4.8.2 without >> success. I also tried to replace Cygwin binaries with version 1.7.0 and >> a few others before 1.7.25 without apparent changes. >> So I'm a little lost now. >> >> Can anyone reporduce that? >> Any help would be appreciated! >> > For your info, I was unable to reproduce such a behavior on Cygwin 32 v > 1.7.25 installs running on 64 bits Windows 7 both on real hardware and > VirtualBox 4.3... > > JP I went on with further testing and could reproduce the problem with the Cygwin shipped Pythons on a 64 bit Windows 7 running under VirtualBox 4.3 with Cygwin 64 and on a 32 bit Windows 7 running on real hardware (intel Atom).
Best, JP -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
