Cannot find anything on this problem on the net.
Adding debug to the modules' line does nothing.
Probably because the module cannot load correctly. I've
built everything from scratch...
from the syslog for login:
Feb 17 14:34:36 [login] PAM unable to
Feb 17 14:34:36 [login] PAM [dlerror:
/lib/security/pam_krb5.so: undefined symbol: krb5_init_ets]
Feb 17 14:34:36 [login] PAM adding faulty module: