Boot hang on ryzen based notebook

[Rozhuk Ivan]

On Sat, 30 Mar 2019 16:37:06 +0200
Darius Mihai <dariusmihaim at gmail.com> wrote:


> I haven't actually tried with FreeBSD, but Linux also seems to have a
> similar problem that can be fixed by disabling ACPI.
> See 11.13.2.3 in
> https://www.freebsd.org/doc/handbook/acpi-overview.html and tell us
> how it works.
> 

Panic with hint.apic.0.disabled="1":
https://bugs.freebsd.org/bugzilla/attachment.cgi?id=203260&action=edit

I try also hw.mca.enabled=0, but it panic on cpu_initclocks_bsp(). - "No usable event timer found!"