Self-Stabilization in Wait-Free Shared Memory Objects
Artikel i vetenskaplig tidskrift, 2002

This paper proposes a general definition of self-stabilizing wait-free shared memory objects. The definition ensures that, even in the face of processor failures, every execution after a transient memory failure is linearizable except for an a priori bounded number of actions. Shared registers have been used extensively as communication medium in self-stabilizing protocols. As an application of our theory, we therefore focus on self-stabilizing implementation of such registers, thus providing a large body of previous research with a more solid foundation. In particular, we prove that one cannot construct a self-stabilizing single-reader single-writer regular bit from self-stabilizing single-reader single-writer safe bits, using only a single bit for the writer. This leads us to postulate a self-stabilizing dual-reader single-writer safe bit as the minimal hardware needed to achieve self-stabilizing wait-free interprocess communication and synchronization. Based on this hardware, adaptations of well-known wait-free implementations of regular and atomic shared registers are proven to be self-stabilizing.


shared memory

fault tolerance

wait-free constructions

distributed computing


Jaap-Henk Hoepman

Marina Papatriantafilou

Chalmers, Institutionen för datavetenskap, Datakommunikation och Distribuerade System

Philippas Tsigas

Chalmers, Institutionen för datavetenskap, Datakommunikation och Distribuerade System

Journal of Parallel and Distributed Computing

0743-7315 (ISSN) 1096-0848 (eISSN)

Vol. 62 5 818-842


Data- och informationsvetenskap



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