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

 WARNING: stack corrupted; session integrity not guaranteed

    Facility: DEBUG, VMS Debugger

    Explanation: While walking the call stack, the debugger has
    determined that the stack is corrupted. The debugger will attempt
    to establish some context and give the user control. Continuation
    in the presence of a corrupted stack typically results in
    unpredictable program and debugger behavior.

    User Action: See the secondary message, if any, for more
    information. Look at what little valid information is left and
    then start over. Attempt to find and fix the point where the
    stack gets corrupted. It may be possible to examine program
    state, but continuing instruction execution typically results
    in unpredictable program and debugger behavior.