[Bug 89360] [bdw-u iommu] DMAR error -> GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89360

--- Comment #67 from Ernest Hurtado <mqajjhfn at 10mail.org> ---
when I set i915.enable_execlists=0 kernel option it doesn't hang afyer resuming
from suspend. It spams log with those messages instead:

[drm:i915_gem_idle_work_handler [i915]] *ERROR* Timeout waiting for engines to
idle

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