International Business Machines Corporation

Guy Eugene Martin

Susan Kay Candelaria

Michael Howard Hartung

Vernon John Legvold

John Norbert McCauley

Mark Albert Reid

Carol Santich Michod

Kenneth Wayne Lane

Dennis Albert Kukula

William Lee Richardson

A data processing system executes a plurality of processes in parallel. The processes access shared user records stored in memory serially. One or more data structures are used to track access by processes to the data structures and to the user records. Responsive to a fault occurring in a first parallel process, a signal is given the remaining parallel processes indicating the failure. Responsive to the failure, it is determined if the faulting parallel process had access to one of the data structures. Depending upon the circumstances of access, integrity of the user records may be assumed and the record validated. The data structures themselves can be examined to determine if the contents of memory is reliable. Typically the data structures support use of the memory as a cache.

Method of validating memory structures in data processing systems

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Austin, TX, United States of America

Guy Eugene Martin