[$] Challenges with fstests and blktests

Post Syndicated from original https://lwn.net/Articles/896670/

The challenges of testing filesystems and the block layer were the topic of a
combined storage and filesystem session led by Luis Chamberlain at the
2022 Linux Storage,
Filesystem, Memory-management and BPF Summit
(LSFMM). His goal is to
reduce the amount of time it takes to test new features in those areas, but
one of the problems that he has encountered is a lack of determinism in the
test results. It is sometimes hard to distinguish problems in the kernel
code from problems in the tests themselves.