fence_wait returned with error -512

[Steve Kargl]

On Wed, Sep 26, 2018 at 02:32:24PM -0700, Johannes Lundberg wrote:
> On Wed, Sep 26, 2018 at 10:01 Steve Kargl <sgk at troutmask.apl.washington.edu>
> wrote:
> 
> > Because drm2 in the base system is going away, I install
> > drm-stable-kmod.  In doing so, I also removed the old drm2
> > modules under /boot/kernel to ensure that I picked up the
> > modules from /boot/modules.  To /etc/rc.conf, I added the
> > line 'kld_list=/bootmodules/radeonkms.ko'.  Upon reboot,
> > I see
> >

(snip)

> >
> > My console and /var/log/messages now contains a slew of
> >
> > fence_wait returned with error -512
> >
> > This message is coming from /boot/modules/drm.ko
> >
> > % strings /boot/modules/drm.ko  | grep fence_wait
> > fence_wait returned with error %d
> >
> > Why?
> 
> From what I found on Wikipedia your hardware seem to be from 2010. The new
> drm based on linuxkpi is not guaranteed to work with that old hardware. If
> drm2 worked for you before it’s best to use the pkg drm-legacy-kmod (which
> is the same as drm2 in base).
> 
> Firmware loading is broken but an update is on its way to fix this.

Yes, drm2 in base worked.  Is the update days or weeks away?
Switching from possibly broken drm-stable-kmod to possibly
crippled drm-legacy-kmod seems dubious.

-- 
Steve