I just commited a fix that Charles Hannum and I worked out regarding the 
Cardbus pcmcia compat mode.

Previously the card/status interrupt was being left enabled during the
power-down, power-up, reset operation in socket_enable and also the in
socket_disable.  This allowed for an unhandled interrupt to be generated 
and the system would get stuck until you yanked the pcmcia card.

I would appreciate if people could test this code and get back to me if
they see any new problems, especially if things stop working where they
used to work.

Thanks,
Chris.