Cycle accurate fault log modeling for a digital system

Details Cycle accurate fault log modeling for a digital system Cycle accurate fault log modeling for a digital system

2010-07-29

2011-10-25

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S032000, C714S033000

Reexamination Certificate

active

08046639

ABSTRACT:
A system and method for accurately modeling a fault log is provided for validating one or more elements of fault detection and logging logic for a real-time fault log of a digital system such as, for instance, a computer processor. The method includes injecting one or more known faults into a data path and/or a control path of the computer processor and spawning an individual tracking thread for each of the injected faults. The tracking threads may be synchronized at a predefined synchronization point that is selected as a function of a collective logging delay representing the time required for each of the injected faults to reach a real-time logging point within the computer processor. Once synchronized, the tracking threads may be input into a fault logging specification for fault behavior and/or system impact modeling and fault prioritization for use in generating a fault log model for comparison to the real-time fault log maintained within the computer processor.

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