Index: head/sys/compat/linux/linux_socket.c
===================================================================
--- head/sys/compat/linux/linux_socket.c
+++ head/sys/compat/linux/linux_socket.c
@@ -1451,10 +1451,13 @@
 		name = -1;
 		break;
 	}
-	if (name == -1)
+	if (name == -1) {
+		linux_msg(curthread,
+		    "unsupported setsockopt level %d optname %d",
+		    args->level, args->optname);
 		return (ENOPROTOOPT);
+	}
 
-
 	if (name == IPV6_NEXTHOP) {
 		len = args->optlen;
 		error = linux_to_bsd_sockaddr(PTRIN(args->optval), &sa, &len);
@@ -1546,8 +1549,12 @@
 		name = -1;
 		break;
 	}
-	if (name == -1)
+	if (name == -1) {
+		linux_msg(curthread,
+		    "unsupported getsockopt level %d optname %d",
+		    args->level, args->optname);
 		return (EINVAL);
+	}
 
 	if (name == IPV6_NEXTHOP) {
 		error = copyin(PTRIN(args->optlen), &len, sizeof(len));