dovecot - Jun 2006 - beta9 (auth) killed with signal 11 - backtrace

Further to my previous email I managed to find the core file.

Version: 1.0.beta9
OS: Gentoo x86

Core was generated by `dovecot-auth'.
Program terminated with signal 11, Segmentation fault.

(gdb) bt full
#0  0xb7d575ba in strcasecmp () from /lib/tls/libc.so.6
No symbol table info available.
#1  0x0805b091 in passdb_get_credentials ()
No symbol table info available.
#2  0x00000000 in ?? ()
No symbol table info available.