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A comment on Disorderfs: FUSE-based filesystem that introduces non-determinism into metadata. Parent comment

Re:Disorderfs: FUSE-based filesystem that introduces non-det... by gopalv on Friday January 29, 2021 @06:25PM (#25964188)
> shouldn't it instead try to enforce determinism in any possible way

That would only fix the build machine's problem, it wouldn't fix anyone else's builds.

A repeatable build without determinism is a fix for all people everywhere.

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Re:Disorderfs: FUSE-based filesystem that introduces non-det... by amelius on Friday January 29, 2021 @07:03PM (#25964537)
> That would only fix the build machine's problem, it wouldn't fix anyone else's builds.

It would fix everyone else's builds if they added determinism in their builds (as opposed to adding non-determinism in the test-procedure). Besides, a test-procedure never gives a guarantee because a bug depending on non-determinism can be subtle.

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Re:Disorderfs: FUSE-based filesystem that introduces non-det... by _underfl0w_ on Friday January 29, 2021 @09:29PM (#25965415)
> a bug depending on non-determinism can be subtle.

That's the point - to uncover bugs dependent on nondeterminism by using a filesystem that introduces it. This is for fuzz testing at the filesystem level, not literally reproducing the builds correctly multiple times.

From the linked README:

"This is useful for detecting non-determinism in the build process."

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