Problems with nmbd

[Pupeno <pupeno_(_at_)_pupeno_(_dot_)_com_(_dot_)_ar>]

When running nmbd from rc.local (/usr/local/sbin/nmbd) it dies
sometimes, when I run it by hand it doesn't die, or at least it dies
mucho less frecuently.
Here is what the logs show: (sig 11 :(

/var/log/nmbd:
[2000/10/11 18:53:32, 0]
/usr/ports/net/samba/work/samba-2.0.7/source/nmbd/nmbd.  Got SIGHUP
dumping debug info.
[2000/10/11 18:53:32, 0]
/usr/ports/net/samba/work/samba-2.0.7/source/lib/fault. 
===============================================================
[2000/10/11 18:53:32, 0]
/usr/ports/net/samba/work/samba-2.0.7/source/lib/fault.  INTERNAL ERROR:
Signal 11 in pid 28738 (2.0.7)
  Please read the file BUGS.txt in the distribution
[2000/10/11 18:53:32, 0]
/usr/ports/net/samba/work/samba-2.0.7/source/lib/fault. 
===============================================================
[2000/10/11 18:53:32, 0]
/usr/ports/net/samba/work/samba-2.0.7/source/lib/util.c  PANIC: internal
error   

Any idea of what could causing this ?
Thank you.
-- 
Pupeno: pupeno_(_at_)_pupeno_(_dot_)_com_(_dot_)_ar  www.pupeno.com.ar
PGP fingerprint: 02B5 EDAE EC30 7A9A 0327  9D05 89FB 8D14 B4D8 64C3
Get my key from: http://www.pgp.net/pgpnet/wwwkeys.html