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Date:      Fri, 9 Jun 2017 17:04:45 -0500
From:      "Eric A. Borisch" <eborisch@gmail.com>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Can't boot (zfs-on-root) with "options EARLY_AP_STARTUP" and "device pf"
Message-ID:  <CAASnNnqi1k-9ncdb6Qoadq3whs5KChnNUGYn1DeVhyg54zyc5w@mail.gmail.com>

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Good afternoon,

I tried to update the kernel on my Lenovo x230 (stable/11), and I would get
crashes on boot. *I am running a non-GENERIC kernel.* Bisecting the changes
from last-known-good, I found that I couldn't boot on any kernel past after
r318752. The next change to the kernel, r318763 [1], turned on
EARLY_AP_STARTUP by default.

I've narrowed it down to what appears to be a conflict with 'options
EARLY_AP_STARTUP' and 'device pf'. I can build a farily vanilla kernel with
these set, and it crashes on boot. (I have a few other options set to
enable root-on-zfs-on-geli.)

Any suggestions, other than 'don't do that?',
 - Eric

[1] https://svnweb.freebsd.org/base?view=revision&revision=318763



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