[Bug 91078] [BSW]OpenCL/utests hang sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91078

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to meng from comment #4)
> (In reply to Ville Syrjala from comment #3)
> > So no GPU hang?
> > 
> > Does the problem happen with i915.enable_execlists=0 too?
> 
> With i915.execlist=0, the issue still exists. 
> For OpenCL testing, we need to disable i915 hang check because OCL kernel
> may cost 6 seconds or even more.

6 seconds of monopolizing the GPU sounds like a DoS worthy of being banned ;-)

So not even the grace period given to looping kernels is enough to prevent
hangcheck firing? I would strongly suggest you fired a bug with the bare
minimum required to reproduce (that is an igt).

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