CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

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

Behrooz Sangchoolie (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Fatemeh Ayatolahi (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Roger Johansson (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Johan Karlsson (Institutionen för data- och informationsteknik, Datorteknik (Chalmers))
11TH EUROPEAN DEPENDABLE COMPUTING CONFERENCE p. 178-189. (2015)
[Konferensbidrag, refereegranskat]

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.

Nyckelord: ISA-level fault injection; single bit-flips; brake- by-wire system; inject-on-read; inject-on-write


Location: Paris, FRANCE Date: SEP 07-11, 2015



Denna post skapades 2015-09-01. Senast ändrad 2016-09-19.
CPL Pubid: 221606

 

Institutioner (Chalmers)

Institutionen för data- och informationsteknik, Datorteknik (Chalmers)

Ämnesområden

Datorteknik

Chalmers infrastruktur