extrange passwd behaviour

[Ruben Porras <nahoo82@telefonica.net>]

I've discovered that login, sudo, gdm only take care of the first 8
characters of the passwd. The following characters don't count. See the
following example (I've created a new user just to make the test)

$$ adduser test
Adding user test...
Adding new group test (1006).
Adding new user test (1006) with group test.
Enter new UNIX password: qwertyuiop <-- this, for example 10 letters
Retype new UNIX password: qwertyuiop
passwd: password updated successfully
Changing the user information for test
Enter the new value, or press ENTER for the default
        Full Name []:
        Room Number []:
        Work Phone []:
        Home Phone []:
        Other []:
Is the information correct? [y/n] y

$$ su test
Password: qwertyui <--- only 8 letters (qwertyuivnksshfdd, for example
would be also ok)
$$ whoami
test


I don't see nothing about this in BTS, I'm puzzled.