A Comparison of Inject-on-Read and Inject-on-Write in ISA-Level Fault Injection

Sangchoolie, BehroozChalmers University of Technology, Sweden,Chalmers tekniska högskola (författare)

ISA-level fault injection, i.e. the injection of bit-flip faults in Instruction Set Architecture (ISA) registers and main memory words, is widely used for studying the impact of transient and intermittent hardware faults in computer systems. This paper compares two techniques for ISA-level fault injection: inject-on-read, and inject-on-write. The first technique injects bit-flips in a data-item (the content of a register or memory word) just before the data-item is read by a machine instruction, while the second one injects bit-flips in a data-item just after it has been updated by a machine instruction. In addition, the paper compares two variants of inject-on-read, one where all faults are given the same weight and one where weight factors are used to reflect the time a data-item spends in a register or memory word. The weighted injected-on-read aims to accurately model soft errors that occur when an ionizing particle perturbs a data-item while it resides in an ISA register or a memory word. This is in contrast to inject-on-write, which emulates errors that propagate into an ISA register or a memory word. Our experiments show significant differences in the results obtained with the three techniques.

NATURVETENSKAP Data- och informationsvetenskap Datorteknik hsv//swe
NATURAL SCIENCES Computer and Information Sciences Computer Engineering hsv//eng
brake-by-wire system
inject-on-read
inject-on-write
ISA-level fault injection
single bit-flips
Computer hardware
Radiation hardening
Software testing
Brake-by-wire systems
Fault injection
Single bit flips
Computer architecture

Ayatolahi, Fatemeh,1984Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)fataya (författare)
Johansson, Roger,1956Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)roger (författare)
Karlsson, Johan,1956Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)johan (författare)
Chalmers University of Technology, SwedenChalmers tekniska högskola (creator_code:org_t)

Ingår i:Proceedings - 2015 11th European Dependable Computing Conference, EDCC 2015: Institute of Electrical and Electronics Engineers Inc., s. 178-189, s. 178-1899781467392891
Ingår i:11TH EUROPEAN DEPENDABLE COMPUTING CONFERENCE: Institute of Electrical and Electronics Engineers Inc., s. 178-189, s. 178-189

Av författaren/redakt...: Sangchoolie, Beh ...; Ayatolahi, Fatem ...; Johansson, Roger ...; Karlsson, Johan, ...

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