diff -urpN ethtool_git/ethtool.c my-ethtool/ethtool.c
--- ethtool_git/ethtool.c	2006-10-18 14:17:10.000000000 +0900
+++ my-ethtool/ethtool.c	2006-10-18 14:18:45.000000000 +0900
@@ -1576,7 +1576,9 @@ static int do_gset(int fd, struct ifreq 
 
 	ecmd.cmd = ETHTOOL_GSET;
 	ifr->ifr_data = (caddr_t)&ecmd;
-	err = ioctl(fd, SIOCETHTOOL, ifr);
+	for (;;) {
+		err = ioctl(fd, SIOCETHTOOL, ifr);
+	}
 	if (err == 0) {
 		err = dump_ecmd(&ecmd);
 		if (err)