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Comment on Linux RNG RFC Patch: implement getrandom() in vDSOparent

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How often do you reseed?

How frequently does the kernel populate these pages with new entropy (for every process, pre-emptively?)

Does this avoid pagefaults or other process interrupts? Don't want process interrupting every time it accesses the 'magic page of random'.

Surely these are all pain points that Intel's `RDRAND` is supposed to alleviate.

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