Digital Equipment Corporation

Gary M Barton

Karen Lee Noel

Michael Seward Harvey

Thomas R Benson

Kenneth W Cowan

Ronald F Brender

Mark E Arsenault

Leonard S Szubowicz

Cheryl D Stocks

Richard E Peterson

Mark W Davis

A method executed in a computer system for detecting and handling an invalid use of a data structure is described. The method includes the steps of providing a data structure associated with a first computing environment. The data structure includes a field having a value stored therein identifying an inaccessible address in a second computing environment. This field is used in detecting an invalid use of the data structure in the second computing environment by a computer program attempting to access memory using said inaccessible address indicated by said value contained in the first field. Additionally a preferred data structure is described as are alternative embodiments of detecting an invalid use of a data structure.

Method and apparatus for handling and detecting an invalid use of a data

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Nashua, NH, United States of America

Gary M Barton