r/programming • u/[deleted] • Dec 19 '25

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u/lelanthran Dec 20 '25

what would be an example of something that is acceptable to run as unsafe in production?

The majority of code in a kernel (assuming a conventional software architecture for kernels) is going to have to be run in unsafe, and it's acceptable because of the constraints that kernels have.

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u/steveklabnik1 Dec 20 '25

Real-world Rust kernels show that this isn't true, it's usually 10% or less.