Decidability of Liveness on the TSO Memory Model

07/21/2021
by   Chao Wang, et al.
0

An important property of concurrent objects is whether they support progress -a special case of liveness-guarantees, which ensure the termination of individual method calls under system fairness assumptions. Liveness properties have been proposed for concurrent objects. Typical liveness properties includelock-freedom,wait-freedom,deadlock-freedom,starvation-freedom and obstruction-freedom. It is known that the five liveness properties above are decidable on the Sequential Consistency (SC) memory model for a bounded number of processes. However, the problem of decidability of liveness for finite state concurrent programs running on relaxed memory models remains open. In this paper we address this problem for the Total Store Order (TSO) memory model,as found in the x86 architecture. We prove that lock-freedom, wait-freedom,deadlock-freedom and starvation-freedom are undecidable on TSO for a bounded number of processes, while obstruction-freedom is decidable.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
05/13/2018

Fast and Scalable Group Mutual Exclusion

The group mutual exclusion (GME) problem is a generalization of the clas...
research
01/05/2021

An Ownership Policy and Deadlock Detector for Promises

Task-parallel programs often enjoy deadlock freedom under certain restri...
research
07/18/2022

A Pattern-based deadlock-freedom analysis strategy for concurrent systems

Local analysis has long been recognised as an effective tool to combat t...
research
05/14/2021

Linearizability: a Typo

Linearizability is the de facto consistency condition for concurrent obj...
research
08/29/2018

Memory Consistency Models using Constraints

Memory consistency models (MCMs) are at the heart of concurrent programm...
research
08/05/2021

Crystalline: Fast and Memory Efficient Wait-Free Reclamation

Historically, memory management based on lock-free reference counting wa...
research
03/02/2021

Memory Reclamation for Recoverable Mutual Exclusion

Mutual exclusion (ME) is a commonly used technique to handle conflicts i...

Please sign up or login with your details

Forgot password? Click here to reset