Per rwatson's request:

Per rwatson's request:
"If you don't get a review within a day or two, I would firmly recommend
backing out the changes"

back out all my changes, i.e. not comes from merging from OpenBSD as
unreviewed by secteam@ yet.
(OpenBSD changes stays in assumption they are reviewd by OpenBSD)

Yes, it means some old bugs returned, like not setted rs_stired = 1 in
arc4random_stir(3) causing double stirring.