[Intel-gfx] [PATCH v3] drm/i915: Add fault injection support

Chris Wilson chris at chris-wilson.co.uk
Tue Mar 15 14:14:13 UTC 2016

On Tue, Mar 15, 2016 at 04:01:14PM +0200, Imre Deak wrote:
> I'm not sure if you want to check all failure paths, I think for that
> the existing failslab etc. mechanisms are better suited. This new
> option would be used at relatively few well defined places. The option
> is a mask since Chris wanted the possibility to mix failures (which
> makes sense when injecting a non-fatal failure somewhere). If he
> doesn't insist on that possibility I can convert the mask option to a
> counter based one identifying a single failure spot instead as you
> suggest. Chris?

We can extend the counter mechanism by having multiple counters behind
i915.inject_load_failure (i.e. =gem:4,driver:10,modeset:1)
so extensibility for more testing seems fine.

Chris Wilson, Intel Open Source Technology Centre

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