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

Joonas Lahtinen joonas.lahtinen at linux.intel.com
Wed Mar 16 09:18:04 UTC 2016

On ti, 2016-03-15 at 14:14 +0000, Chris Wilson wrote:
> 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)

Now that there's a series to split down the init functions nicely, one
could use the function names directly. By stripping parts of it if
needed to shorten them.

Regards, Joonas

> so extensibility for more testing seems fine.
> -Chris
Joonas Lahtinen
Open Source Technology Center
Intel Corporation

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