[Dovecot] "failed to map segment from shared object: Cannot allocate memory"

From /var/log/auth.log (Dovecot 1.1.4 on Ubuntu 8.10):

Feb 10 08:29:06 home dovecot-auth: PAM unable to dlopen(/lib/security/pam_ck_connector.so): libdbus-1.so.3: failed to map segment from shared object: Cannot allocate memory Feb 10 08:29:06 home dovecot-auth: PAM adding faulty module: /lib/security/pam_ck_connector.so

English, please? :) Strangely, it seemed to disappear after increasing login_processes_count, login_max_processes_count and/or auth_worker_max_count.

-- Vegard Svanberg <vegard@svanberg.no> [*Takapa@IRC (EFnet)]