comm_open: socket failure

Running squid 2.3s2 on FreeBSD system with 768Meg Ram

All of a sudden my cache.log file is getting bombarded with the following:

2000/03/28 00:20:45| comm_open: socket failure: (55) No buffer space available
2000/03/28 00:20:46| comm_open: socket failure: (55) No buffer space available
2000/03/28 00:20:46| comm_open: socket failure: (55) No buffer space available

Help!
Any suggestions as to what the system is doing?
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    _/ Regards: Brad Groshok (bgroshok@odyssey.on.ca) _/
   _/ President Odyssey Network Inc. http://www.odyssey.on.ca _/
  _/ London Ontario Canada PH:(519)660-8883 Fax:(519)660-6111 _/
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Received on Mon Mar 27 2000 - 17:25:18 MST