Comment # 9 on bug 91308 from Andy Furniss

(In reply to Andy Furniss from comment #8)
> Created attachment 117361 [details]
> dmesg with ring 9 stall
> 
> Further to IRC chat with current agd5f libdrm and mesa I can easily with
> cpufreq set to perf get a ring 9 stall with a small number of player starts.

Should add this is really nothing to do with interop per say as I was using
vdpau for vo.