VMware ESX4, NW6.5.8 with VMWTool.nlm loaded, 99% CPU usage.

Kernel, busiest thread = DNSThreadSocketMgr2

Google and KB don't present any hits for DNSThreadSocketMgr2.

Unloading & reloading named.nlm didn't help.

The cause was, that NSLOOKUP.NLM was still loaded, after I used it few days ago to
solve MX delivery issues. Unloading it immediately dropped CPU usage to normal

Regards, Rudi.