Panic in efi_get_time() on EPCY system when booting

[Kyle Evans]

On Tue, Aug 14, 2018 at 11:04 AM, Michael Tuexen <tuexen at freebsd.org> wrote:
> Dear all,
>
> r337761 panics on boot with a GENERIC kernel on a EPYC system:

Oy. =(

> [...]
> panic: mutex pmap not owned at ../../../amd64/amd64/efirt_machdep.c:268
> [...]
>
> Any idea what is wrong?
>

Ah, this should be fixed by https://reviews.freebsd.org/D16618 --
immediate workaround is set efi.rt.disabled=1 in loader.conf(5) or at
loader prompt. Apologies for the hassle.

Thanks,

Kyle Evans