One might also be idle, etc.

src/datawizard/data_request.c

@@ -216,7 +216,6 @@ int _starpu_wait_data_request_completion(struct _starpu_data_request *r, unsigne
 	if (worker)
 	{
 		old_status = worker->status ;
-		STARPU_ASSERT(old_status == STATUS_UNKNOWN || old_status == STATUS_WAITING);
 		_starpu_set_worker_status(worker, STATUS_WAITING);
 	}