[Intel-gfx] [PATCH 2/4] drm/i915: Let hangcheck score decay faster than loop increment

Daniel Vetter daniel at ffwll.ch
Tue Dec 1 00:55:14 PST 2015

On Mon, Nov 30, 2015 at 05:18:43PM +0000, Chris Wilson wrote:
> On Mon, Nov 30, 2015 at 06:53:07PM +0200, Mika Kuoppala wrote:
> > We decay hangcheck score, instead of setting it to zero,
> > when seqno moves forward. This was added as mechanism to
> > detect batches full of invalid waits.
> And slow DoS. So no.

Yeah we need to fix the deqp CI issues with tunables. Running a shader for
10s and monopolizing the gpu might be ok in a stress tests, but it's
definitely not ok by default on a normal system.
Daniel Vetter
Software Engineer, Intel Corporation

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