Re: kern.boottime drift after boot?

[RVP <rvp%SDF.ORG@localhost>]

On Tue, 10 Oct 2023, Brian Buhrow wrote:

> Does it always drift backward?  And, it looks like it drifted by one second.
> Does it ever drift by more than one second?

kern.boottime can go forwards too and by quite a bit. Go into the
BIOS setup, then set the time back by 1 min. Boot into NetBSD and
run ntpdate. kern.boottime should now jump forwards by a minute.

I think what David's looking for is something akin to Linux's

/proc/sys/kernel/random/boot_id

something which only changes on every boot but is otherwise stable.

-RVP