Re: [PATCH 1/8] drm/i915: Serialise concurrent calls to i915_gem_set_wedged()

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Quoting Mika Kuoppala (2019-01-15 11:56:11)
> Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> 
> > Make i915_gem_set_wedged() and i915_gem_unset_wedged() behaviour more
> > consistently if called concurrently.
> 
> More is needed in here. The purpose is to make them wait in turns
> on top of mutex, instead of racing on the bit? Where is
> the inconsistency tho.

We report set-wedged multiple times on failure paths. Worse is when we
report set-wedged multiple times simultaneously.
-Chris
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