Freebsd -Squid - danguardian- Winbind- XMalloc Error

Fri Sep 1 06:14:32 UTC 2006

I have  a box with freebsd 6.1, squid-2.5.13_1 (Ntlm authentication),
dansguardian-2.9.6.1_1 and samba-3.0.22,1 2gb RAM 2 cpu. When The box has
800MB memory active, 1.2GB memory inact and 0 free memory. I get the error
"FATAL: xmalloc: Unable to allocate 65535 bytes" and the squid process
restart. I really need help, I have already search google and the list but
haven't found the solution. Thanks