[Intel-gfx] [PATCH v2 2/3] drm/i915: Mark the kernel as tainted if we fail the preproduction check

Chris Wilson chris at chris-wilson.co.uk
Mon Jan 30 13:25:08 UTC 2017

On Mon, Jan 30, 2017 at 02:31:57PM +0200, Joonas Lahtinen wrote:
> On ma, 2017-01-30 at 10:44 +0000, Chris Wilson wrote:
> > Preproduction sdv are not supported beyond the release of production
> > hardware, and continued use is ill-advised. Mark the kernel as tainted
> > to reinforce the error.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: "Zanoni, Paulo R" <paulo.r.zanoni at intel.com>
> > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > Cc: Jani Nikula <jani.nikula at intel.com>
> > Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > Acked-by: Jani Nikula <jani.nikula at intel.com>
> Correct use of taint flags. I think CPU_OUT_OF_SPEC could be more
> correct flag, though?

No idea. I figure that our usage will be spotted one day and we will be
told which one to use, maybe even a new taint.

On x86 CPU_OUT_OF_SPEC is used if the user forces pae, sounds reasonable
but I wanted not to imply that this was a CPU issue itself, but relates
to out-of-spec GPU. MCE was broader and can be triggered by other
components failing.

Chris Wilson, Intel Open Source Technology Centre

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