[Bug 81369] [sng gt1 regression] stuck after first render batch with Linux 3.15.5, works with 3.14.11

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81369

--- Comment #4 from Omen Wild <freedesktop.flibble at mandarb.com> ---
I tried upgrading to 3.15.6 but got the same crash.

[100118.550455] [drm] stuck on render ring
[100118.550909] [drm] GPU HANG: ecode 0:0x85fffff8, in Xorg [6630], reason:
Ring hung, action: reset
[100118.550912] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[100118.550913] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[100118.550914] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[100118.550915] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[100118.550916] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[100120.549307] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[100124.546978] [drm] stuck on blitter ring
[100124.547452] [drm] GPU HANG: ecode 2:0xfffffffe, in Xorg [6630], reason:
Ring hung, action: reset
[100124.547535] [drm:i915_context_is_banned] *ERROR* gpu hanging too fast,
banning!
[100126.546089] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off

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