VMS Help CC, Messages, STKALLEXC  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        Allocations to stack exceeded maximum stack size

 Description    A routine uses more stack space than is available on
                this platform.  This is most often caused by
                declaring too many large automatic variables.

 User Action    Reduce the size required by the automatic variables.