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I have a PCMCIA adapter set up on my desktop running Debian 'Testing'
which automatically mounts a CompactFlash card when inserted by a user.
However the user cannot use 'umount' to unmount the device or 'cardctl
eject' before the card is removed. The system displays a message 'only
root can do that' if a user tries to 'umount' and cardctl won't allow a
user to 'eject'.
If the card is removed without issuing a 'cardctl eject' the system locks
solid to the extent that even the Alt-SysReq key ...