[Bug 45921] [r300g, bisected] Multiple piglit regression after winsys/radeon: hook up the new DRM_RADEON_GEM_WAIT ioctl

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45921

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2012-02-11 04:19:27 PST ---
(In reply to comment #2)
> (In reply to comment #1)
> > I am sure the commit in question is not the cause. I prematurely added the code for the new ioctl and disabled it later on, because my kernel code the commit
> > was supposed to interact with wasn't accepted.
> > 
> > The problem when bisecting is that now it tries to call a non-existing ioctl if the DRM minor version is >=12, which makes some tests fail. Could you please
> > check dmesg to see if that's the case? There should be some error messages from DRM.
> 
> None of the tests produce any output in dmesg.

Okay.

> > 
> > I think that some of those piglit failures are caused by the glsl-to-tgsi translator. You can disable glsl-to-tgsi by commenting out:
> > 
> >   functions->LinkShader = st_link_shader;
> > 
> > at the end of src/mesa/state_tracker/st_cb_program.c.
> 
> From all the mentioned tests only glsl-fs-discard-02 pass when I disable glsl-to-tgsi.
> 
> BTW in which commit was the new ioctl disabled?

In this one: ef64da8f013691c66744064769db379e57ef95de

> I mean, I can understand that if I don't have kernel with support for the new ioctl it breaks the tests,
> however if the ioctl was disabled later shouldn't be current git working unless another regression happened?

Yes, it should.

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