Re: Alder Lake and similar CPU support for FreeBSD

On Sun, Jul 31, 2022 at 9:54 AM Kevin Oberman <rkoberman@gmail.com> wrote:

> Newer processors such as Alder Lake (12th Gen) mix high performance and
> low power CPUs on a single chip. How well does FreeBSD support these
> architectures? I've seen a couple of trouble reports about this, but not
> seen a lot of information on them and I will soon have an Alder Lake laptop.
>
> Am I going to regret this for several months? Will I need to run CURRENT?
> Not that it would be a problem as I ran CURRENT on my development system
> for years before retiring and enjoying the stability of STABLE most of the
> time).
>

An update. Alder Lake and soft updates don't seem to get along. After
several crashes, all VFS related, I disables soft updates and, several
hundred port builds later, not a single panic.

If you have had problems with an Alder Lake system and have soft updates
enabled, try turning them off. See tunefs(8) for details. Must be done
after a stand after a single user boot before the file system is mounted RW.

-- 
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683