SibylFS: Formal specification and oracle-based testing for POSIX and real-world file systems
- Submitting institution
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The University of Leicester
- Unit of assessment
- 11 - Computer Science and Informatics
- Output identifier
- 1411
- Type
- E - Conference contribution
- DOI
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10.1145/2815400.2815411
- Title of conference / published proceedings
- SOSP '15: Proceedings of the 25th Symposium on Operating Systems Principles
- First page
- 38
- Volume
- -
- Issue
- -
- ISSN
- -
- Open access status
- -
- Month of publication
- October
- Year of publication
- 2015
- URL
-
-
- Supplementary information
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https://doi.org/10.1145/2815400.2815411
- Request cross-referral to
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- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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5
- Research group(s)
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-
- Citation count
- 9
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- SibylFS is both a formal specification of filesystem behaviour, and a test oracle to check real-world filesystem traces. Testing against 40 real-world systems uncovered many errors, even in “verified” filesystems such as FSCQ (https://github.com/mit-pdos/fscq/issues/2). SibylFS is now routinely cited by researchers in the area; it has been used by others to check existing and new filesystems (e.g. Yggdrasil/Yxv6 and the formally-verified DFSCQ, both from MIT; Flashix from Augsburg); and it has been incorporated into research tools from other groups (e.g. the "Hydra" fuzzing framework from Georgia Institute of Technology; and the "Cerberus" C specification and tools from Cambridge).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -