[Bug 74053] [ivb] hang on pageflip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74053

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
Theories for why the GPU may be upset:

1. Multiple render response messages
2. Page flip with flip outstanding
3. Forcewake is required
4. The hardware hates us

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