Localizing Defects in Multithreaded Programs by Mining Dynamic Call Graphs

Abstract. Writing multithreaded software for multicore computers confronts many developers with the difficulty of finding parallel programming errors. In the past, most parallel debugging techniques have concentrated on finding race conditions due to wrong usage of synchronization constructs. A widely unexplored issue, however, is that a wrong usage of non-parallel programming constructs may also cause wrong parallel application behavior. This paper presents a novel defect-localization technique for multithreaded shared-memory programs that is based on analyzing execution anomalies. Compared to race detectors that report just on wrong synchronization, this method can detect a wider range of defects affecting parallel execution. It works on a condensed representation of the call graphs of multithreaded applications and employs data-mining techniques to locate a method containing a defect. Our results from controlled application experiments show that we found race conditions, but also...

• Type: Journal
• Year: 2010
• Where: TAICPART
• Authors: Frank Eichinger, Victor Pankratius, Philipp W. L. Große, Klemens Böhm
• Keywords: Education, Programming Errors, Race Conditions, TAICPART 2010, Wrong Usage