Hi, I have just compiled squid version squid-3.2.0.13. Everything work with the default configuration, until I put "workers 2" in the squid.conf. Example: workers 2 cpu_affinity_map process_numbers=1,2 cores=1,2 if ${process_number} = 1 cache_dir aufs /cache1 7000 16 256 endif if ${process_number} = 2 cache_dir aufs /cache2 7000 16 256 endif After this I can not start squid I become this error Starting Squid HTTP Proxy 3.x: 2011/10/15 20:37:02| FATAL: dying from an unhandled exception: theGroupBSize > 0 terminate called after throwing an instance of 'TextException' what(): theGroupBSize > 0 /etc/init.d/squid3: line 57: 3495 Aborted $DAEMON -z terminate called after throwing an instance of 'TextException' what(): theGroupBSize > 0 /etc/init.d/squid3: line 57: 3496 Aborted start-stop-daemon --quiet --start --pidfile $PIDFILE --exec $DAEMON -- $SQUID_ARGS < /dev/null failed! Note: the above config for workers works with squid-3.2.0.12 without any problem. Best Regards, Saleh