[Bug 88012] [bisected BYT] complete freeze after: drm/i915/vlv: WA for Turbo and RC6 to work together

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88012

--- Comment #25 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to Chris Wilson from comment #24)
> That bisect appears to be a red herring though.

As someone who is also affected by this I can well believe that.

Though I wasn't bisecting Kernel at the time (and still haven't)  I've had runs
of 12 hours without a lock - the same setup locked < 2H next day.

Having test quite hard since this bug was filed with released kernels I am
99.9% sure the issue is between 3.16.7 and 3.17.0.

I also think that gpu load is needed  - I use LFS and have compiled plenty on
bad kernels + mprime torture test and never locked.

Do you have any guesses of what the bad commit could be between those - if you
have then people could test that and someone will hopefully call bad quickly
then extended test on the one before.

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