Title :
Evaluation of error detection schemes using fault injection by heavy-ion radiation
Author :
Gunneflo, U. ; Karlsson, J. ; Torin, J.
Author_Institution :
Dept. of Comput. Eng., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
Several concurrent error detection schemes suitable for a watch-dog processor were evaluated by fault injection. Soft errors were induced into a MC6809E microprocessor by heavy-ion radiation from a Californium-252 source. Recordings of error behavior were used to characterize the errors as well as to determine coverage and latency for the various error detection schemes. The error recordings were used as input to programs that simulate the error detection schemes. The schemes evaluated detected up to 79% of all errors within 85 bus cycles. Fifty-eight percent of the errors caused execution to diverge permanently from the correct program. The best schemes detected 99% of these errors. Eighteen percent of the errors affected only data, and the coverage of these errors was at most 38%.<>
Keywords :
error detection; fault tolerant computing; microprocessor chips; Californium-252 source; MC6809E microprocessor; coverage; error detection schemes; fault injection; heavy-ion radiation; latency; soft errors; watch-dog processor; Circuit faults; Computer errors; Concurrent computing; Delay; Error correction; Event detection; Fault detection; Microprocessors; Radiation detectors; Single event upset;
Conference_Titel :
Fault-Tolerant Computing, 1989. FTCS-19. Digest of Papers., Nineteenth International Symposium on
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-8186-1959-7
DOI :
10.1109/FTCS.1989.105590