[mod_python] Multiple call to Session.Session(req) problem

Hi,

I have the problem that getting the session instance in a handler more
than once makes the server hang on the second access to the session.
the problem does ot occure on windows XP but on suse Linux with 3.2.10

Here is my scenario:

def view_ticket_detail(req, ticketId):
    def __access__(req, user):
        ...
        # webutil.authorize will get the session
        return webutil.authorize(req=req, login=user, neededRole=neededRole)

    req.content_type = "text/html"
    ...
    # now I need the session again
    session = Session.MemorySession(req) ###### <-- here the server hangs

any ideas?