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Oops! Where Did That Code Snippet Come From?

Lisong Guo 1 Julia Lawall 1 Gilles Muller 1 
1 Whisper - Well Honed Infrastructure Software for Programming Environments and Runtimes
LIP6 - Laboratoire d'Informatique de Paris 6, Inria Paris-Rocquencourt
Abstract : A kernel oops is an error report that logs the status of the Linux kernel at the time of a crash. Such a report can provide valuable first-hand information for a Linux kernel maintainer to conduct postmortem debugging. Recently, a repository has been created that systematically collects kernel oopses from Linux users. However, debugging based on only the information in a kernel oops is difficult. We consider the initial problem of finding the offending line, i.e., the line of source code that incurs the crash. For this, we propose a novel algorithm based on approximate sequence matching, as used in bioinformatics, to automatically pinpoint the offending line based on information about nearby machine-code instructions, as found in a kernel oops. Our algorithm achieves 92% accuracy compared to 26% for the traditional approach of using only the oops instruction pointer.
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Submitted on : Wednesday, November 5, 2014 - 11:05:16 AM
Last modification on : Friday, January 21, 2022 - 3:21:49 AM
Long-term archiving on: : Friday, April 14, 2017 - 12:30:19 PM


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Lisong Guo, Julia Lawall, Gilles Muller. Oops! Where Did That Code Snippet Come From?. MSR 2014 - 11th Working Conference on Mining Software Repositories, May 2014, Hyderabad, India. pp.52-61, ⟨10.1145/2597073.2597094⟩. ⟨hal-01080397⟩



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