some questions about passwords

[matador]

Hi all; sorry for my fool qestions i`m just beginner in this field (and sorry for my poor english ) )
so the questions are :
when compiling kernel with grsec (customized) i`m include such options :
ACL OPTIONS
(3) Max Tries beefore password lockout
(30) Time to wait after max password tries ( in seconds)
but it doesn`t work ! where my error or it just don`t really work?

[spender]

It works. Do the following:

gradm -E
gradm -D
enter invalid password
gradm -D
enter invalid password
gradm -D
enter invalid password
now you'll see a message in your logs that authentication was locked
gradm -D
enter valid password
the system won't disable, the password will be rejected
wait 30 seconds
gradm -D
enter valid password
ACL system will successfully disable

-Brad