Formalizing System Behavior for Evaluating a System Hang Detector

  title={Formalizing System Behavior for Evaluating a System Hang Detector},
  author={Long Wang and Zbigniew T. Kalbarczyk and Ravishankar K. Iyer},
  journal={2008 Symposium on Reliable Distributed Systems},
This paper presents an approach to formally verify the detection capability of a system hang detector. To achieve this goal, an abstract formal model of a typical Linux system is created to thoroughly exercise all execution scenarios that may lead to hangs. The goal is to expose cases (i.e., hang scenarios) that escape detection. Our system model abstracts the basic hardware (e.g., timer, hardware counter) and software (e.g., processes/threads) components present in the Linux system. The model… CONTINUE READING