[Intel-gfx] [BISECTED][BUG] Bug 91133 : GPU hang on G45

[Vincent Legoll]

Hello,

I finally managed to bisect properly that GPU hang, more info here:
https://bugs.freedesktop.org/show_bug.cgi?id=91133

But unfortunately the culprit commit does not revert properly from
current linus tree.

I first met that bug about 2 monthes ago, but had no time to investigate
back then, so I went back to a previous working kernel, and then a month
from now, decided to dig in.

It took a very long time because I'm on an old laptop, not very powerful,
and without enough space to use ccache usefuly, so the many recompiles
cycles did take an awfully long time.

And also the first bisection attempt failed, probably because of config
variations. So, it was really painful, but that pain is behind now.

How do we follow from here to a final fix ?

I can test patches, the bug reproducing is fairly accurate and quick...

-- 
Vincent Legoll