hi , nice explanation , my problem is , i wasn't waiting 60 sec for shutting down !! that's why the crash in squid occurs , in summary , we know the problem and fixed it regards ----- Dr.x -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/how-distribute-squid-loads-to-cpus-and-memories-using-SMP-feature-tp4662867p4662931.html Sent from the Squid - Users mailing list archive at Nabble.com.