Login fails for non-root users with error message "passwd: PAM unable to dlopen(/lib/security/pam_tally.so)

Issue

• Installed new RHEL 5.5 64 bit machines via kickstart file used for other 32-bit installs. After installation on 64 bit machines normal users are unable to login and these messages are reported in /var/log/secure

passwd: PAM unable to dlopen(/lib/security/pam_tally.so)  
Jun 23 13:06:47 hostname1 passwd: PAM [error: /lib/security/pam_tally.so: wrong ELF class: ELFCLASS32]

• pam_tally entries in /etc/pam.d/system-auth file

auth          required        /lib/security/pam\_tally.so onerr=fail no_magic_root  
account    required        /lib/security/pam\_tally.so deny=3 reset no_magic_root per_user