Re: [PATCH 2/2] drm/i915: Add the last written reg to error state

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At first glance, this is interesting. On reflection I think I still only
care about the register values at the time of the error. Otherwise, I
would rather have the last few registers written - and only those of the
interesting set as defined by the error state - their values and when.
We would also then require the timestamp of batch execution to marry with
the register updates if we suspect them of causing GPU hangs.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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