Sounds familar to me :-) For a start, have a look here: http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-crash-with-rock-during-startup-td4658281.html#a4658307 -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/ivp6-is-required-to-use-SMP-tp4659010p4659012.html Sent from the Squid - Users mailing list archive at Nabble.com.