Error no

[power wang]

When i have a test,I got the hint:

Testing server 'MySQL 5.0.7 beta max log' at 2005-07-06 9:15:12

Testing the speed of creating and dropping tables
Testing with 10000 tables and 10000 loop count

Testing create of tables
Can't execute command 'create table bench_127 (i int NOT NULL,d double,f float,s char(10),v varchar(100),primary key (i))'
Error: Can't create table './sq_test/bench_127.frm' (errno: 708)

And how can i got the real useful infomation according the 'errno: 708'?
Anybody can give me some clews
Thanks
Best regards