Thanks for sending that along.  It appears that a bug I had in cturtle
is preventing me from seeing the relevant message, but I have some
hypotheses.

I tested the attached patch on my diamondback branch, it should work
in cturtle as well.  It changes the very end of
rosib/src/roslib/xmlrpc.py.  This logic should have the serve_forever
re-enter on interrupted calls.  Because the cturtle code has the
(non)-logging bug, I also threw in a commented out
traceback.print_exc().  If you find that the patch isn't working, then
uncommenting that traceback would hopefully reveal the true cause.

If this patch works, let me know and I'll integrate it.

cheers,
Ken