No user can login through GDM after VAS (Vintela Authentication Services) upgrade – Error message isPAM unable to dlopen /lib64/security/pam_vas3 PAM[dlerror:/lib64/security/pam_vas3.so
This sounds like an error with your PAM configuration. You might need to refer to "man pam.conf" or "man pam.d". I'm not sure the GDM mailing list is the best place to track down PAM configuration issues. It might be better to check with your vendor. I notice the lib64 in the path. Perhaps your system isn't configured properly to work in 64-bit mode or something? Brian