A Rollback Interval for Networks with an Imperfect Self-Checking Property

  • Authors:
  • J. J. Shedletsky

  • Affiliations:
  • IBM T. J. Watson Research Center

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1978

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Abstract

Dynamic self-checking is a technique used in computers to detect a fault quickly before extensive data contamination caused by the fault can occur. When the self-checking properties of the computer circuits are not perfect, as in the case of self-testing only and partially self-checking circuits, a recovery procedure may be required to roll back program execution to a point prior to the first undetected data error caused by the detected fault.