On 24/04/2014 6:10 p.m., Ding Guigeng wrote: > Hi all! > my os is centos 6.5 x86_64 > squid version is 3.3.12 > cache.log: > 2014/04/24 13:56:43 kid5| assertion failed: mem.cc:219: "MemPools[type]" Somehow your build appears to be mixed up with .o files from a previous build and different feature set. Pease try a new build with a completely clean set of source code. If you have a compiler caching tool such as ccache in use, please also clear its cache just in case. If the problem persists we will need a debug backtrace showing what the value of "type" is along with the ./configure options used to build. Amos