Abstract
Flash memory has become a virtually indispensable component for mobile devices in today’s information society. However, conventional testing methods often fail to detect hidden bugs in flash file systems due to the difficulties involved in creating effective test cases. In contrast, the approach of model checking guarantees a complete analysis, but only on a limited scale. In the previous work, the authors applied concolic testing to the multi-sector read operation of a Samsung flash storage platform as a trade-off between the aforementioned two methods.
This paper describes our continuing efforts to develop an effective and efficient verification framework for flash file systems. We developed a scalable distributed concolic algorithm that utilizes a large number of computing nodes. This new concolic algorithm can alleviate the limitations of the concolic approach caused by heavy computational cost. We applied the distributed concolic technique to the multi-sector read operation of a Samsung flash storage platform and compared the empirical results with results obtained with the original concolic algorithm.
This work was supported by the Engineering Research Center of Excellence Program of Korea Ministry of Education, Science and Technology(MEST)/National Research Foundation of Korea(NRF) (Grant 2010-0001727) and the MKE(Ministry of Knowledge Economy), Korea, under the ITRC(Information Technology Research Center) support program supervised by NIPA(National IT Industry Promotion Agency) (NIPA-2010-(C1090-1031-0001)).
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Kim, Y., Kim, M., Dang, N. (2010). Scalable Distributed Concolic Testing: A Case Study on a Flash Storage Platform . In: Cavalcanti, A., Deharbe, D., Gaudel, MC., Woodcock, J. (eds) Theoretical Aspects of Computing – ICTAC 2010. ICTAC 2010. Lecture Notes in Computer Science, vol 6255. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14808-8_14
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DOI: https://doi.org/10.1007/978-3-642-14808-8_14
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