[Bug 89039] [SKL]system will hang when running 3D games (e.g. etqw-demo)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89039

--- Comment #38 from ye.tian <yex.tian at intel.com> ---
Tested with drm-intel-fixes(5e4f51) and latest Mesa(master)30916a5ef.

I saw that demo hanged at a specific frame every time. 
The rest issue is same as the patch.
system is not hang, GPU hang, i915_error_state.

"drm/i915: Resetting chip after gpu hang"

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