attempt to allocate an event flag failed

    Facility: DEBUG, VMS Debugger

    Explanation: The debugger wanted to allocate a local event flag
    for it's own use. For some reason the routine called to allocate
    the event flag failed. This message is usually issued in the
    $DBG_INFO context.

    User Action: The debugger needs event flags to operate. Check the
    program being debugged for excessive allocation of event flags.