Proceedings of the twentieth ACM symposium on Operating systems principles
Semantically-smart disk systems: past, present, and future
ACM SIGMETRICS Performance Evaluation Review - Design, implementation, and performance of storage systems
Tolerating file-system mistakes with EnvyFS
USENIX'09 Proceedings of the 2009 conference on USENIX Annual technical conference
jVPFS: adding robustness to a secure stacked file system with untrusted local storage components
USENIXATC'11 Proceedings of the 2011 USENIX conference on USENIX annual technical conference
Using declarative invariants for protecting file-system integrity
PLOS '11 Proceedings of the 6th Workshop on Programming Languages and Operating Systems
A case study on state-based robustness testing of an operating system for the avionic domain
SAFECOMP'11 Proceedings of the 30th international conference on Computer safety, reliability, and security
Towards reliable storage systems
Towards reliable storage systems
Recon: verifying file system consistency at runtime
FAST'12 Proceedings of the 10th USENIX conference on File and Storage Technologies
Recon: Verifying file system consistency at runtime
ACM Transactions on Storage (TOS)
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We propose a novel method to measure the robustness of journaling file systems under disk write failures. In our approach, we build models of how journaling file systems order disk writes under different journaling modes and use these models to inject write failures during file system updates. Using our technique, we analyze if journaling file systems maintain on-disk consistency in the presence of disk write failures. We apply our technique to three important Linux journaling file systems: ext3, Reiserfs, and IBM JFS. From our analysis, we identify several design flaws and correctness bugs in these file systems, which can cause serious file system errors ranging from data corruption to unmountable file systems.