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Date:      Tue, 21 Jan 2020 20:31:05 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 234455] CPU frequency scaling fails for multiple cores
Message-ID:  <bug-234455-227-R22zZQdHeH@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-234455-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-234455-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234455

--- Comment #6 from Dave Green <dg@fastmail.co.uk> ---
CPU is 800 at boot either with or without powerd.

Temperature is always stable at 25 degrees.

I'll retry debug.acpi.disabled=3D"thermal" but I don't recall it having any
effect for 11.2-RELEASE.

If I comment out the conditional in cf_set_method() at kern/kern_cpu.c:291 =
then
both sysctl and powerd can be used to adjust the frequency.

>    if (priority < sc->curr_priority) {
>        CF_DEBUG("ignoring, curr prio %d less than %d\n", priority,
>            sc->curr_priority);
>        error =3D EPERM;
>        goto out;
>    }

--=20
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