There is an exponential rise in the use of smartphones in government and private institutions
due to business dependencies such as communication, virtual meetings, and access to …

We report on the process for formal concurrency modelling at Arm. An initial formal
consistency model of the Arm achitecture, written in the cat language, was published and …

Several functional correctness criteria have been proposed for relaxed-memory consistency
libraries, but most lack support for modular client reasoning. Mével and Jourdan recently …

Non-volatile memory (NVM) is a cutting-edge storage technology that promises the
performance of DRAM with the durability of SSD. Recent work has proposed several …

Concurrent systems software is widely-used, complex, and error-prone, posing a significant
security risk. We introduce VRM, a new framework that makes it possible for the first time to …

Very relaxed concurrency memory models, like those of the Arm-A, RISC-V, and IBM Power
hardware architectures, underpin much of computing but break a fundamental intuition …

Relaxed memory models must simultaneously achieve efficient implementability and thread-
compositional reasoning. Is that why they have become so complicated? We argue that the …

We investigate the problem of develo** an" in-order" shared-memory concurrency model
for languages like C and C++, which executes instructions following their program order …

Virtual memory is an essential mechanism for enforcing security boundaries, but its relaxed-
memory concurrency semantics has not previously been investigated in detail. The …

Stateless Model Checking (SMC) is an effective technique for verifying safety properties of a
concurrent program by systematically exploring all of its executions. While SMC has been …