Comment 4 for bug 1094076

So, the waitpid is invoked from openstack/common/service.py

    def _wait_child(self):
        try:
            pid, status = os.wait()
        except OSError as exc:
            if exc.errno not in (errno.EINTR, errno.ECHILD):
                raise
            return None

Now the question is what do we need to change it to? assuming the patch from vishy to eventlet is correct.