Thanks! This is just what I need. What are the drawbacks to returning the sigsys before executing the system call? Otherwise this loses the benefit of properly reporting registers for argument inspection. How about SECCOMP_RET_PERMISSIVE? Describes the application rather than the implementation. Otherwise preference is for SECCOMP_RET_ALLOW_SIGSYS. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html