[Samba] samba kills machine

[Pavel Herrmann]

Hi
I have a problem with samba, it randomly "crashes", forking one unkillable 
(unresponsive for both sigterm and sigkill) smbd process running as root, 
which consumes 100% of cpu, and elevates loadavg to the point where the 
computer is unusable (and it has 4 cpus). I have tried several versions 
between 3.0.23 and 3.3.2 and all exhibit this kind of behavior.
the samba itself has been migrated from an old server to this new one (copying 
confs, LDAP and /var/lib/samba), and has been doing this ever since, so this 
could be the root of the problem
Thanks,
Pavel