sysctl_wire_old_buffer
rc = sysctl_wire_old_buffer(req, 0);
rc = sysctl_wire_old_buffer(req, 0);
rc = sysctl_wire_old_buffer(req, 0);
error = sysctl_wire_old_buffer(req, 0);
error = sysctl_wire_old_buffer(req, 0);