I updated Peter's original patch to 2.5+svn fixes and added proper tests to test_subprocess.py. It works great now.

What do you think about this approach? Fixing it only in submodule feels a bit strange, but then again, this is meant to be an easy to use abstraction, and most of the people that were hit by this (according to Google) encountered the problem in subprocess.

I don't see how to attach something here, so I attached the updated patch to the Ubuntu bug (https://launchpad.net/bugs/87292):

  http://librarian.launchpad.net/6807594/subprocess-eintr-safety.patch

Thanks,

Martin