On 27/04/16 10:19, Andreas Lampersperger wrote:
> Hello,
>
> has anyone here a hint for me, what can cause this error.
> The error occures highly sporadic on different machines with intel hd
> graphics (ivb_gt1).
> I did also some kernel coredumps and found out, that the failed
> paging request came from drm_i915_gem_request->list.prev or ->list.next.
>
> Thank you
> Andreas

Try this patch.

.Dave.