mysql 联接出错，这个版本的mysql远程联接有bug,是不是真的呀！

木材

[root@FTP bin]# ./vadddomain test.com
Please enter password for postmaster:
enter password again:
could not connect to mysql update server Access denied for user: 'root@FTP.renchen.com' (Using password: YES) with database
could not connect to mysql update server Access denied for user: 'root@FTP.renchen.com' (Using password: YES)
vmysql: sql error[3]: MySQL server has gone away
vmysql: sql error[c]: MySQL server has gone away
vmysql: sql error[c]: MySQL server has gone away
vmysql: sql error: MySQL server has gone away
vmysql: sql error[3]: MySQL server has gone away
vmysql: sql error[2]: MySQL server has gone away
Error: Unable to chdir to vpopmail/users directory
[root@FTP bin]#
上面我用vpopmail添加新域名是出的错误信息，
我对mysql 不是太了解，请高手告诉我一下以上信息是什么缘故呀，急！
我用的是rd8.0+mysql-3.23.52-3+qmail+vpopmail
只是想作一个mail server 但不知为什么会有这样的错误，
我用的N已经是root 权限了呀。
mysql 也是照常运行，
谢谢！