Quoting Tvrtko Ursulin (2019-11-25 11:39:17)
> 
> On 25/11/2019 10:58, Chris Wilson wrote:
> > As the engine->kernel_context is used within the engine-pm barrier, we
> > have to be careful when emitting requests outside of the barrier, as the
> > strict timeline locking rules do not apply. Instead, we must ensure the
> > engine_park() cannot be entered as we build the request, which is
> > simplest by taking an explicit engine-pm wakeref around the request
> > construction.
> > 
> > Signed-off-by: Chris Wilson <[email protected]>
> 
> Reviewed-by: Tvrtko Ursulin <[email protected]>

Thank you for your patience and help.
-Chris
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