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Starting Conditions for Post-Mortem Debugging using Deterministic Replay of Real-Time Systems
Publication Type:
Conference/Workshop Paper
Venue:
Proceedings of the 15th Euromicro Conference on Real-Time Systems (ECRTS03)
Abstract
Repeatable executions are required in order to successfully debug a computer system. However, for real-time systems, interactions with the environment and race conditions in the execution of multitasking
real-time systems software make reproducible behavior difficult to
achieve. Earlier work on debugging of real-time software has
established the use of a {it deterministic replay}, a record/replay
solution, as a viable approach to reproduce executions.
<br><br>
When combining the deterministic replay approach with infinite loop
recorders (similar to black-box recorders in airplanes) for
post-mortem debugging, it is essential that the recordings are
sufficiently long and detailed in order to be able to re-execute the
system. Basic problems however, are how to find a well-defined
starting point within the recording, and how to find a reachable state
in the rebooted/restarted system to match that instance? Previous work
has not presented solutions to these fundamental problems, in this
paper we do. We also present some implementation details from an
industrial case study.
Bibtex
@inproceedings{Huselius445,
author = {Joel Huselius and Daniel Sundmark and Henrik Thane},
title = {Starting Conditions for Post-Mortem Debugging using Deterministic Replay of Real-Time Systems},
pages = {177--184},
month = {July},
year = {2003},
booktitle = {Proceedings of the 15th Euromicro Conference on Real-Time Systems (ECRTS03)},
url = {http://www.es.mdu.se/publications/445-}
}