Implementing efficient fault containment for multiprocessors: confining faults in a shared-memory multiprocessor environment

A stop member is hingedly mounted to a base member which clips onto a vehicle license plate of the type which is pivotably mounted to a vehicle and functions as an external cover which hides the usual fuel tank cap and fill port. After the license plate has been swung into an open position the stop member can be pivoted from an inoperative position, wherein it lies parallel to the rear face of the license plate, to an operative position wherein it lies in a plane perpendicular to that of the license plate and abuts the rear wall of the vehicle to hold the plate in a open position.