Comment # 21 on bug 72685 from smoki

(In reply to comment #20)
> (In reply to comment #18)
> >  So if someone succesfully fix that currently in various ways broken shadows
> > setup in r600/radeonsi code, he will fix hyperz artifacts too :).
> 
> It's not that simple unfortunately. At least in Sanctuary, the shadows work
> perfectly now without HyperZ but are still broken with it.

 I know i mentionied that here:
https://bugs.freedesktop.org/show_bug.cgi?id=79035#c6

 Anyway besides more artifacts of course (i mentioned yesterday on irc to
marek) that if i just disable stencil in si_state.c, there is no lockups in
these traces/apps when hyperz is enabled S_028800_STENCIL_ENABLE(0)