[Bug 89034] Firefox crashing xserver and some major rendering bugs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89034

--- Comment #32 from Tom Stellard <tstellar at gmail.com> ---
(In reply to smoki from comment #31)
> (In reply to Michel Dänzer from comment #30)
> > I think at least the piglit regressions aren't directly related to
> > sub-register liveness and should be tracked in a separate bug report:
> 
>  Those regressions are only reproducable here with sub reg liveness enabled.
> 
> >On my Kaveri, I've been seeing random failures of some (of the same as yours) >piglit tests recently (with sub-register liveness disabled). The only way I've >found to avoid those failures is to keep rebooting until I get lucky. It seems >like some recent change (most likely in Mesa?) causes the hardware to go into a >weird, semi-persistent state.
> 
> >I'm afraid it might be tricky to bisect that, but it would be very helpful.
> 
>  That sounds like a separate one, but i don't have that and can't reproduce
> it on Kabini. I only have some known of those sometimes fails at random, but
> those are under "warn" and just few of them (i am talking about just 1-3
> tests), but no "fail" tests happens here at random.

Would you be able to set the environment variable R600_DEBUG=ps,vs and run the
glsl-fs-min test with the good and bad commit and post the output.

R600_DEBUG=ps,vs ./bin/shader_runner tests/shaders/glsl-fs-min-shader_test
-auto

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