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Yes, panicking in kernels is bad. I've followed the whole R4L fight about working around it.

https://github.com/apple-oss-distributions/xnu/blob/main/doc...

Upstream fbounds in xnu has options for controlling if it panics or is just a telemetry event. They are in a kernel situation and have the exact same considerations on trying to keep the kernel alive.

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Ah, thank you. If it can just do the equivalent of WARN_ON_ONCE(…) and continue, and the check wouldn’t be slow enough to make people disable it, then yeah, that sounds really good.

https://llvm.org/devmtg/2023-05/slides/TechnicalTalks-May11/...

Supposedly ~5% (1-29%), but I'm testing my own projects to verify (my guess is higher at 10-20%, but will depend on the code). Supposedly it's to land in gcc at some point but I dunno the time table.

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