Squid on FreeBSD: xmalloc causes restarting

Hello squid-users,

we have been using Squid for a couple of weeks and are very
satisfied. However, there is one problem.

We have Squid 1.1.14 on FreeBSD 3.0-970807-SNAP.
From time to time, we can see Squid restarting itself,
generating the following message:

FATAL: xmalloc: Unable to allocate 4096 bytes!

Squid Cache (Version 1.1.14): Terminated abnormally.
CPU Usage: user 39 sys 80
Maximum Resident Size: 32300 KB
Page faults with physical i/o: 12
97/10/31 09:00:01| Starting Squid Cache version 1.1.14 for i386-unknown-freebsd3.0...

Can anyone provide any kind of advice or comment?
TIA,

Josef

-- 
Josef Pojsl
SkyNet, a.s.		Czech Republic		sec@skynet.cz