On Mon, 26 Nov 2012 14:48:18 +0200, ville.syrjala at linux.intel.com wrote: > From: Ville Syrj??l?? <ville.syrjala at linux.intel.com> > > According to BSpec the ring head and tail pointers must not be > on the same cacheline when head > tail. The easiest way to enforce > this is to reduce the reported ring space. I'm going to admit blindness because I don't see that warning in the gen2-gen7 bspecs. Can you please give chapter and verse, and check to see if there is a rationale? -Chris -- Chris Wilson, Intel Open Source Technology Centre