Squid neeeds some extra resources. Please try the configured kernel with those options. options MSGMNB=16384 # was 2048 options MSGMNI=41 # was 40 options MSGSEG=2049 # was 2048 options MSGSSZ=64 # was 8 options MSGTQL=512 # was 40 -- Takahiro Kambe <taca@back-street.net>