I'm testing Balazs version of pam_krb5afs module and having problem with it on one site ( it's working on another site running identical Sun OS version and same packages of krb4 and 5. The module gets segmentation fault that I traced to krb5_verify_init_creds. I need help to further debug the fault. Any tips how I can run gdb on /usr/bin/login or otherwise debug this function.