Hi, Why is it that the cache manager shows negative values in runtime info.(squid 2.5.10 on FC4 X86-64) We have 4Gb total Ram. Memory usage for squid via mallinfo(): Total space in arena: -2001896 KB Ordinary blocks: -2003111 KB 168 blks Small blocks: 0 KB 0 blks Holding blocks: 13620 KB 10 blks Free Small blocks: 0 KB Free Ordinary blocks: 1214 KB Total in use: -1989491 KB 100% Total free: 1214 KB 0% Total size: -1988276 KB Memory accounted for: Total accounted: 1878417 KB memPoolAlloc calls: 1903784217 memPoolFree calls: 1878036540 This is what top says about squid. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ P COMMAND 11560 squid 15 0 2566m 2.1g 1632 S 7.9 54.2 1240:28 1 squid Pls help. Rgds Sk