invalid or unexpected debugging device detected

    Facility: EFI$CP, The OpenVMS EFI Partition Control Program

    Explanation: A DECwindows call used within debugging code
    returned an unexpected device name, or no debugging device was
    available.

    User Action: An internal error has apparently been detected.
    Please contact support. If this error can be reproduced with a
    specific command or a specific command sequence, please provide
    the reproducer.