samba - Aug 2003 - samba-3.0.0beta2 reports internal error

hello list,

we're running samba-3.0.0beta2 with ldapsam backend on debian unstable.
when contacting the samba server from a nt4 client, windows reports an
unexpected network error and samba reports the following internal error:

[2003/08/04 13:05:20, 0] lib/fault.c:fault_report(36)
  ==============================================================[2003/08/04
13:05:20, 0] lib/fault.c:fault_report(37)
  INTERNAL ERROR: Signal 11 in pid 14465 (3.0.0beta2-1 for Debian)
  Please read the appendix Bugs of the Samba HOWTO collection
[2003/08/04 13:05:20, 0] lib/fault.c:fault_report(39)
  ==============================================================[2003/08/04
13:05:20, 0] lib/util.c:smb_panic(1452)
  smb_panic(): calling panic action [/usr/share/samba/panic-action 14465]
[2003/08/04 13:05:20, 0] lib/util.c:smb_panic(1460)
  smb_panic(): action returned status 0
[2003/08/04 13:05:20, 0] lib/util.c:smb_panic(1462)
  PANIC: internal error
[2003/08/04 13:05:20, 0] lib/util.c:smb_panic(1469)
  BACKTRACE: 33 stack frames:
   #0 /usr/sbin/smbd(smb_panic+0xc9) [0x817eb3d]
   #1 /usr/sbin/smbd [0x81700e2]
   #2 /lib/libc.so.6 [0x401c99c8]
   #3 /usr/lib/libldap.so.2(gnutls_SSL_get_certificate+0x39) [0x400f1c4e]
   #4 /usr/lib/libldap.so.2(ldap_pvt_tls_get_my_dn+0x1e) [0x400efdaf]
   #5 /usr/lib/libldap.so.2(ldap_int_tls_start+0x116) [0x400f0bce]
   #6 /usr/lib/libldap.so.2(ldap_int_open_connection+0x2a6) [0x400cd27b]
   #7 /usr/lib/libldap.so.2(ldap_new_connection+0xea) [0x400dfb5b]
   #8 /usr/lib/libldap.so.2(ldap_open_defconn+0x2e) [0x400ccaee]
   #9 /usr/lib/libldap.so.2(ldap_send_initial_request+0x63) [0x400df627]
   #10 /usr/lib/libldap.so.2(ldap_sasl_bind+0x2ec) [0x400d4e28]
   #11 /usr/lib/libldap.so.2(ldap_simple_bind+0xd2) [0x400d5666]
   #12 /lib/libnss_ldap.so.2 [0x40512e55]
   #13 /lib/libnss_ldap.so.2 [0x40512b05]
   #14 /lib/libnss_ldap.so.2(_nss_ldap_initgroups_dyn+0x54) [0x40514efc]
   #15 /lib/libc.so.6 [0x4023ac99]
   #16 /lib/libc.so.6(getgrouplist+0x4f) [0x4023ad3d]
   #17 /usr/sbin/smbd(sys_getgrouplist+0x3e) [0x81c7a6e]
   #18 /usr/sbin/smbd [0x81aa1d5]
   #19 /usr/sbin/smbd [0x81aa590]
   #20 /usr/sbin/smbd(make_server_info_sam+0x9c) [0x81aa7bc]
   #21 /usr/sbin/smbd(make_server_info_guest+0x97) [0x81aa96f]
   #22 /usr/sbin/smbd [0x81a8f93]
   #23 /usr/sbin/smbd [0x81a4550]
   #24 /usr/sbin/smbd [0x809d181]
   #25 /usr/sbin/smbd(reply_sesssetup_and_X+0x532) [0x809e38a]
   #26 /usr/sbin/smbd [0x80b670d]
   #27 /usr/sbin/smbd [0x80b6903]
   #28 /usr/sbin/smbd(process_smb+0x74) [0x80b6ab0]
   #29 /usr/sbin/smbd(smbd_process+0x198) [0x80b7578]
   #30 /usr/sbin/smbd(main+0x440) [0x81d5140]
   #31 /lib/libc.so.6(__libc_start_main+0xdd) [0x401b8a51]
   #32 /usr/sbin/smbd(chroot+0x31) [0x8075fa5]

i hope this error isn't caused by a misconfigured smb.conf, testparm
however reports no errors. any hints what causes this error or what i can
do?

thanks in advance,
Rico Hauke