Jit Fault Detection: Increasing Availability in 1oo2 Systems Just-In-Time

Research output: Contribution to conferencePaper


With silicon technology decreasing in size, memories get more
susceptible to external influences, which can lead to soft errors.
Although temporary, these errors constitute a challenge for safety-critical systems. Redundancy-based error detection is commonly
used in industry to increase safety and mitigate these errors. When
an error is detected, safety-critical systems are usually switched to
a safe state. While this prevents failures, it negatively affects the
system’s availability. In this work, we propose Just-in-Time fault
detection, a novel method which enables a system to be switched to
the safe state only in case a detected error would affect the system’s
behavior. A software tool enabling the deployment of this method
on an off-the-shelf processor is implemented, and the method is
validated and compared with a state-of-the-art alternative approach
using mixed-critical memories. Our results show an availability
gain between 25.2% and 100% compared with the state-of-the-art
approach while executing two different standard algorithms.
Original languageEnglish
Number of pages10
Publication statusAccepted/In press - 25 Aug 2020
EventARES Conference 2020: The 15th International Conference on Availability, Reliability and Security (ARES 2020) - University College Dublin, Dublin, Ireland
Duration: 25 Aug 202028 Aug 2020


ConferenceARES Conference 2020
Internet address


  • fault detection
  • RAM test
  • Availability
  • 1oo2
  • overwriting
  • safety-critical system

Fields of Expertise

  • Information, Communication & Computing

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