diff -up mesa-21.3.3/src/gallium/drivers/iris/iris_batch.c.5731 mesa-21.3.3/src/gallium/drivers/iris/iris_batch.c
--- mesa-21.3.3/src/gallium/drivers/iris/iris_batch.c.5731	2021-12-29 22:05:19.000000000 +0100
+++ mesa-21.3.3/src/gallium/drivers/iris/iris_batch.c	2022-01-01 11:37:31.525303532 +0100
@@ -787,8 +787,7 @@ submit_batch(struct iris_batch *batch)
             (struct drm_i915_gem_exec_object2) {
                .handle = bo->gem_handle,
                .offset = bo->address,
-               .flags  = bo->real.kflags | (written ? EXEC_OBJECT_WRITE : 0) |
-                         (iris_bo_is_external(bo) ? 0 : EXEC_OBJECT_ASYNC),
+               .flags  = bo->real.kflags | (written ? EXEC_OBJECT_WRITE : 0),
             };
          ++validation_count;
       }