in case anyone is interested. I ran an strace on it. It seg faulted. Per support for some reason the process didn't get cleaned up and was basically stuck in a seg fault. So I just killed. There was another tell there processes were not using any memory (top had them at 0.0%). I dont believe you can be connected to oracle and not use any memory. i didnt have ASH/AWR on this DB so I couldnt check history. So I was concerned I missed something. Its not real often you have a run away oracle process that isn't actually connected to the DB.