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Sensitivity of Real-Time Operating Systems to Transient Faults: A case study for MicroC kernel

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4 Author(s)
B. Nicolescu ; Ecole Polytechnique de Montréal, P.O. Box 6079, Succ. Centre-Ville, Montréal, Canada. ; N. Ignat ; Y. Savaria ; G. Nicolescu

This paper explores sensitivity of RTOS kernels in safety-critical systems. We characterize and analyze the consequences of transient faults on key components of the MicroC kernel, a popular RTOS. We specifically focus on its task scheduling and context switching modules. Classes of fault syndromes specific to safety-critical real-time systems are identified. Results reported in this paper demonstrate that 34% of faults led to scheduling dysfunctions. In addition 17% of faults results in system crashes. This represents an important fraction of faults that cannot be ignored during the design phase of safety-critical applications running under an RTOS.

Published in:

Radiation and Its Effects on Components and Systems, 2005. RADECS 2005. 8th European Conference on

Date of Conference:

19-23 Sept. 2005