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

 the target system has run out of scratch space

    Facility: DEBUG, VMS Debugger

    Explanation: Scratch space is allocated on the target system to
    implement single stepping. The target system has run out of this
    space so no more work can be done.

    User Action: Reboot the target system with more scratch space and
    try the debugger again. See the documentation for more details.