[Bug 88641] [snb 3.17] ringbuffer wrap overshoot?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88641

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Arjan Bruin from comment #3)
> Created attachment 112568 [details]
> GPU crash dump 2

This looks different. Here there isn't the evidence of confusion in the
ringbuffer, but that the CS kept reading past the batchbuffer - indicative that
the batchbuffer is incoherent.

Did this issue start occurring recently? Perhaps a change in 3.17.y? If so, is
there any chance you could bisect it?

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