On Thu, Dec 18, 2014 at 06:20:18PM -0800, Ben Widawsky wrote: > From: Ben Widawsky <ben@xxxxxxxxxxxx> > > The docs specify this needs to be set on HSW GT1 parts. I've implemented it as > such since it should only be needed when using RC6, but it can probably go > anywhere. > > This patch fixes extremely reproducible hangs on our Jenkins setup. > > The interesting failure signature is: > IPEHR: 0x780c0000 (3DSTATE_VF) > INSTDONE_0: 0xffdfbffa (SVG + VS) We see the same bug on IVB, and the bug (verified on hsw gt1) persists with i915.enable_rc6=0. -Chris -- Chris Wilson, Intel Open Source Technology Centre -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html