Comment 133 for bug 447892

(In reply to comment #46)
> (In reply to comment #45)
> > False. Your patch does not fix the bug for me, instead I need to continue using
> > drm-intel-big-hammer.patch coupled with 855nolid.patch; I have the 855GM rev 02
> > chipset.
>
> The font glitches are evidence alone that the wbinvd() is insufficient. It is
> even more apparent when using a reliable test case for the incoherency issue.
>

There is no reliable testcase since it cannot be even run! With your patch alone Xorg will live 1-2 seconds at max, crashing without running anything but itself. This is the same result without your patch. I can run with both patches if you want, but the "necessity" flag stays on drm-intel-big-hammer.patch and 855nolid.patch for now