[Bug 72917] [HSW] kms_flip hangs the machine

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72917

--- Comment #7 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to comment #6)
> Bisected:
> 
> commit bfca05275a594920ad5111f5a23ec6fadc0d0780
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Wed Dec 18 16:40:38 2013 +0100
> 
>     Revert "drm/i915: Do not allow buffers at offset 0"
> 
> Assigning to Daniel since he decided to revert in the first place. As I
> noted in the original commit, I had unexplainable errors when using offset 0.
> 
> A simple revert of the SHA fixes the problem for me.

I can still get the backtrace even after reverting the revert :(

How can I help debug this?

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