Hi All, Squid memory usage grows beyond allocate cache_mem size of 8 GB. Total physical memory available on machine is 20 GB. Does that mean there is memory leak and I should replace malloc library and compile squid ? I am using squid2.6 without using disk for caching. Memory usage for squid via mallinfo(): Total space in arena: -52916 KB Ordinary blocks: -82192 KB 215707 blks Small blocks: 0 KB 0 blks Holding blocks: 11404 KB 3 blks Free Small blocks: 0 KB Free Ordinary blocks: 29275 KB Total in use: -70788 KB 171% Total free: 29275 KB -70% Total size: -41512 KB Memory accounted for: Total accounted: 11256849 KB memPoolAlloc calls: 870846623 memPoolFree calls: 819677123 Regards Nitesh