2.6.12 / udev / pcmcia

Since we went to kernel 2.6.12, we've had problems with CF memory cards.
After doing some tracking, it seems that udev is removing the hda device
in /dev before /etc/pcmcia/ide has a chance to run (to unmount the
filesystem). Is the correct solution to inform udev to ignore pcmcia?
That seems to work (e.g. mv /sbin/udevd /sbin/junk). What is the proper
way to do this?

Second, if a process is in the midst of reading the directory structure
(or file) from CF and one removes the card, a panic will result. Has
anyone looked at that problem?
Thanks for your insights.
--
Todd