mysql-stress-test.pl运行出错

Question

运行mysql自带的mysql-stress-test.pl工具：
./mysql-stress-test.pl --server-database=test --server-user=mysql --server-password=mysql --stress-basedir=/usr/share/mysql-test/ --stress-datadir=std_data/ stress-suite-basedir=/usr/share/mysql-test/ --server-logs-dir=/var/log/ --server-host=localhost

系统提示：
Usage: Socket::inet_ntoa(ip_address_sv) at ./mysql-stress-test.pl line 126.

不知道哪里有问题？