I have encountered at least two projects (automotive) where there is a strong demand for no-one to touch the configuration of the watchdog timer once started. File permissions and other restrictions has not been enough to satisfy the requirement. There you have some background information for this patch. Cheers, Marcus Folkesson -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html