Dynamic Livelock Analysis of Multi-threaded Programs

  • Malay K. Ganai
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7687)


Compared to deadlocks, where one or more threads are blocked forever, livelocks are harder to detect as it is not easy to distinguish between a long and an infinite busy wait (i.e., no progress) cycle. We propose a dynamic livelock analysis for a multi-threaded program by examining its execution trace. From the observed trace events, our approach uncovers livelock potentials due to infinite executions where one or more threads in a group are acquiring and releasing resources in busy-wait cycles to avoid deadlocks. Furthermore, to confirm a livelock potential, we orchestrate a partial-order schedule to induce a livelock during a program re-execution. We implemented our proposed approach in a prototype tool CBuster, comprising a light-weight binary instrumentation framework for C/C++ programs to record events, and to replay partial-order schedules. We applied our approach to identify and confirm livelocks in a case study based on SQLite, a widely used embedded multi-threaded database engine.


Model Check Shared State Synchronization Event Deadlock Detection Multithreaded Program 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Malay K. Ganai
    • 1
  1. 1.NEC Labs AmericaPrincetonUSA

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