Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, INTERR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 debugger error in debugger_routine_name or session corruption

    Facility: DEBUG, VMS Debugger

    Explanation: The debugger has encountered an internal error or
    session corruption.

    User Action: If the error is reproducible, and is not an obvious
    side effect of the user program (i.e. stack corruption, resource
    exhaustion, etc.) submit a Software Performance Report (SPR) and
    if possible, enclose a copy of the program being debugged, its
    build procedure, and a logged debugging session that reproduces
    the error.