[Bug 54226] [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54226

--- Comment #67 from Mika Kuoppala <mika.kuoppala at intel.com> ---
(In reply to comment #61)
> Created attachment 76448 [details]
> i915_error_state (kernel 3.8.2 Fedora) with path (write mbox regs twice on
> snb, v2)
> 
> Any updates?

Mikhail,

Could you please try patch:
[PATCH] drm/i915: Resurrect ring kicking for semaphores, selectively

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