[Bug 222807] PURE entropy sources are harvested but not mixed in. Also, min-entropy low per SP800-90B measurements

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222807

--- Comment #4 from W. Dean Freeman <badfilemagic at gmail.com> ---
(In reply to Conrad Meyer from comment #2)

Conrad,

We made it optional so that we could test it down stream but still have a
switch to flip back to up-stream behavior if we wanted to.  Frankly, I don't
see value in leaving it optional long-term as I think it is the correct
behavior.

Re: saturating add, I probably should have removed the original comment. It was
MarkM's, not mine/Oliver's.  The code change with the MIN() was based on a
suggestion from jmg at . Looking back, it does look like I missed where he said to
change RANDOM_FORTUNA_MAXPOOLSIZE to just be a u_int instead of UINT_MAX.

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