System with kernel 4.21 hang immediately after start (invalid opcode: 0000 [#1] SMP NOPTI)

[Mikhail Gavrilov]

On Fri, 4 Jan 2019 at 23:02, Michel Dänzer <michel at daenzer.net> wrote:
>
> On 2019-01-04 4:24 p.m., Alex Deucher wrote:
> > On Fri, Jan 4, 2019 at 9:52 AM Mikhail Gavrilov
> > <mikhail.v.gavrilov at gmail.com> wrote:
> >>
> >> Hi folks I found that kernel 4.21 unworkable with AMD hardware.
> >> Also I am make kernel bisect and founded the blame commit.
> >> First bad commit: [674e78acae0dfb4beb56132e41cbae5b60f7d662]
> >> drm/amd/display: Add fast path for cursor plane updates
> >
> > IIRC, the issue only shows up with newer versions of the ddx.
>
> Wayland compositors seem to hit it as well, I think Mikhail is using
> GNOME on Wayland.

Exactly!

--
Best Regards,
Mike Gavrilov.