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arXiv · 1511.04169

Specifying a Realistic File System

Sidney Amani·Toby Murray
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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.

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Sidney Amani, Toby Murray. 2015-11-13. Specifying a Realistic File System. https://doi.org/10.4204/eptcs.196.1

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