On Wed, Jun 18, 2014 at 10:04:48PM +0300, [email protected] wrote: > From: Ville Syrjälä <[email protected]> > > We're forgetting to unpin the last_context from the ggtt at GPU reset > time. This leads to the vma pin_count leaking at every reset if the > last context wasn't the ring default context. Further use of the same > context will trigger the pin_count check in i915_gem_object_pin() and > userspace will be faced with EBUSY as a result. > > This plaques kms_flip rather badly since it performs lots of resets, > and every fd has its own default context these days. > > Fix the problem by properly unpinning the last context at reset.
Ah, the context reset here is faked because we never restore the default context state. Hmm, in fact, I get the impression that we should just delete i915_gem_context_reset(), and make i915_gem_context_enable() function correctly after the GPU is reset. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
