Injecting bit flip faults by means of a purely software approach: a case studied

Velazco, Raoul; Corominas, A.; Ferreyra, P.

doi:10.1109/dftvs.2002.1173507

Cited by 13 publications

(2 citation statements)

References 7 publications

(2 reference statements)

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“…Some faults do not appear at the same time they occur. Moreover, faults may occur because hardware or software glitches such as memory bit flipping [17] that may alter the data before making decisions at run time.…”

Section: Fault Modelmentioning

confidence: 99%

Generation of fault-tolerant state-based communication schedules for real-time systems

Azim

2017

J Embedded Systems

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State-based schedules use a time division multiple access (TDMA) mechanism that supports executing conditional semantics and making on-the-fly decisions at runtime in each communication cycle. Until now, state-based schedules are unable to tolerate transient faults due to the assumption that stations make the on-the-fly decision on which message to execute next. Stations may make a faulty decision at run time in an unreliable communication environment such as wireless medium due to the presence of transient faults. This faulty decision causes state inconsistency among the stations in the system. In this work, we extend state-based schedules to tolerate faulty decisions in environments where transient faults can occur at the communication layer. Our proposed approach generates fault-tolerant state-based schedules using an integer linear programming optimization model after reducing the possibility of state inconsistency through using a clock and a sampling rate synchronization mechanism. The optimization model maximizes the use of time slots to place checkpoints for fault tolerance and resolving state inconsistency.

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Section: Fault Modelmentioning

confidence: 99%

Generation of fault-tolerant state-based communication schedules for real-time systems

Azim

2017

J Embedded Systems

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“…Some stations may also make faulty decisions, because received data may be altered before making decisions at run time. This can happen, because of hardware or software glitches such as memory bit flipping [24].…”

Section: Overview Of Dynamic Schedulesmentioning

confidence: 99%

Resolving state inconsistency in distributed fault-tolerant real-time dynamic TDMA architectures

Azim

Fischmeister

2011

Etfa2011

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State consistency in safety-critical distributed systems is mandatory for synchronizing distributed decisions as found in dynamic time division multiple access (TDMA) schedules in the presence of faults. A TDMA schedule that supports networked systems making decisions at run time is sensitive to transient faults, because stations can make incorrect local decisions at run time and cause state inconsistency and collisions. We refer to this type of TDMA schedule as a dynamic TDMA schedule. Faulty decisions are especially undesirable for safety-critical systems with hard real-time constraints. Hence, real-time communication schedules must have the capability of detecting state inconsistency within a fixed amount of time. In this paper, we show through experimentation that state inconsistency is a real problem, and we propose a solution for resolving state inconsistency in TDMA schedules.

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Detecting Soft Errors by a Purely Software Approach: Method, Tools and Experimental Results

Nicolescu

Velazco

Embedded Software for SoC

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Injecting bit flip faults by means of a purely software approach: a case studied

Cited by 13 publications

References 7 publications

Generation of fault-tolerant state-based communication schedules for real-time systems

Generation of fault-tolerant state-based communication schedules for real-time systems

Resolving state inconsistency in distributed fault-tolerant real-time dynamic TDMA architectures

Detecting Soft Errors by a Purely Software Approach: Method, Tools and Experimental Results

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