auth with ldap cause segfault

[komet77]

Hi,

last night i have rebuild my system on an gcc update from 3.4.6 to 4.1.1. after this all works fine except auth witt ldap.
ldapserver is running and i can browse the entries.
when i activate auth against ldap (in nsswitch.conf) su, ssh and so on cause an segfault.

an starng thin is the user mailadmin only exists in the ldap directory
getent passwd mailadmin
result in
mailadmin:*:999:100:mailadmin:/home/mailadmin:/bin/false

getent passwd
result in
print all users in passwd and then an segfault.

can anyone help??

thanks