[Bug 74200] [snb regression] Suspend fails for i915 with [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74200

--- Comment #20 from Paulo Zanoni <przanoni at gmail.com> ---
I can't seem to reproduce this on my SNB. Which tree/branch are you using
exactly for the bisect? Does this bug still happen for you on drm-intel-nightly
branch of our tree linux-3.13.y branch of linux-stable?

Just a shot in the dark: can you please try reverting
828c79087cec61eaf4c76bb32c222fbe35ac3930 (drm/i915: Disable GGTT PTEs on GEN6+
suspend) and/or b35b380ed46bb01726bec1795e6443e625306757 (drm/i915: Make PTE
valid encoding optional)? They're an important patch for suspend that happened
near the DIV_ROUND_UP patch.

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