Process Resurrection: A fast recovery mechanism for real-time embedded systems

Kihwal Lee, Lui Raymond Sha

Research output: Contribution to journalConference article


This paper describes a fast recovery mechanism that meets the requirements of embedded real-time systems. In general purpose computing, restart is an established technology for achieving high availability. Restart has also been used in soft real-time systems where the temporary interruption of service is undesirable but acceptable. However, it has not been widely used in small embedded realtime systems with hard deadlines, mainly because the traditional approaches do not meet their requirements of low memory and processor overhead, and fast response times with little variations. We have developed Process Resurrection, a novel restart mechanism for recovering from crash failures to meet these requirements. The experiments on an inverted pendulum control system shows that it can recover the control process in time after a crash (eg. segmentation fault). Another experiment conducted on an MP3 audio player shows that this technique is also applicable to some multimedia applications.

Original languageEnglish (US)
Pages (from-to)292-301
Number of pages10
JournalProceedings of the IEEE Real-Time and Embedded Technology and Applications Symposium, RTAS
StatePublished - Sep 26 2005
Event11th IEEE Real-Time and Embedded Technology and Applications Symposium, RTAS 2005 - San Francisco, CA, United States
Duration: Mar 7 2005Mar 10 2005


ASJC Scopus subject areas

  • Engineering(all)

Cite this