[Bug 91894] [snb] GPU Hangs since Kernel-4.2 upgrade (global/aliasing ppgtt issue?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91894

--- Comment #14 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Armin K from comment #13)
> As I already said, even the bisected commit
> 0875546c5318c85c13d07014af5350e9000bc9e9 gives a stable system. It's two
> commits after that one that introduced the problem.

I know. I just wanted to be absolutely certain that is the commit we pick
apart. Given that you are only definitely sure that hangs start two commits
after, that raises the element that perhaps the issue simply isn't easily
reproduced earlier and that maybe the bisect is not definitive.

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