Last night, all my NW60 and NW65 server had multiple abends. Abend
continued even after reboot. All servers abended with random time, few
minute to 1-2 hours after reboot with random modules. Servers are in
different tree, subnets, including production and testing servers.
Therefore all my services are stopped.

After consulting Novell Engineer and some testing, cifs.nlm is
identified as the problematic module, all servers are return to normal
if cifs module unloaded.