[Bug 291768] bhyve won't boot anything on 15.0 - AMD EPYC 9124

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 18 Dec 2025 18:47:47 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291768

--- Comment #4 from Marko Cupać <marko.cupac@mimar.rs> ---
(In reply to Michael Osipov from comment #3)

Thanks for the instruction.

I'm stuck for the time being. Here's what I did:

bectl create BISECT (from 14.3-RELEASE-p6)
bectl mount BISECT
chroot </tmp/BISECTdir>
git clone https://git.FreeBSD.org/src.git /usr/src
cd /usr/src
git bisect start
git bisect bad release/15.0.0
git bisect good release/14.3.0-p6
(got same result as you)
make -j 48 buildworld
make -j 48 buildkernel
make installkernel
(exit chroot)
bectl activate -t BISECT
shutdown -r now

At this point server did restart and is pingable but not accessible over ssh. I
will have physical access to it on Monday.

In the meantime if there's something I should've done differently please let me
know.

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