Greetings, I just upgraded to stable 16. My squid dies with the following error: Oct 3 09:42:49 server01 squid[12275]: [ID 702911 daemon.alert] xcalloc: Unable to allocate 1 blocks of 4108 bytes! It does this consistently when I hit around 3GB of cache usage. I have plenty of RAM (32GB), plenty of swap. $ id uid=60001(nobody) gid=60001(nobody) $ ulimit -aH time(seconds) unlimited file(blocks) unlimited data(kbytes) unlimited stack(kbytes) unlimited coredump(blocks) unlimited nofiles(descriptors) 65536 memory(kbytes) unlimited I don't see any apparent ulimit limitations. The same exact system with no OS changes was able to use 27GB of cache mem using SQUID-2.6.STABLE14 I upgraded due to tcp probing issues, and monitor issues. This system is solaris 10 x86 btw. Anyone else got ideas, or happen to run into this issue??? Thanks in advance.