Bilby File System

Description:Bilby Filesystem (BilbyFs), a Linux flash file system
Author(s):Sidney Armani, Toby Murray
Tool(s): Isabelle/HOL
Event:MARS'15
Paper:Specifying a Realistic File System

Abstract

We present the most interesting elements of the correctness specification of BilbyFs, a performant Linux flash file system. The BilbyFs specification supports asynchronous writes, a feature that has been overlooked by several file system verification projects, and has been used to verify the correctness of BilbyFs's fsync() C implementation. It makes use of nondeterminism to be concise and is shallowly-embedded in higher-order logic.

Model(s)

Isabelle/HOL:  Download Model
Browse Model
Creative Commons License    This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.