(In reply to comment #4) > Setting DB_RENDER_OVERRIDE.FAST_STENCIL_DISABLE works as a workaround. Yes it works. But it works also with your patch set from last week, did you abandon those? I have these 7 applied and this apitrace does not lockup :) http://lists.freedesktop.org/archives/mesa-dev/2014-August/066388.html http://lists.freedesktop.org/archives/mesa-dev/2014-August/066519.html