squid crashes

Hello,

we have four FreeBSD boxes running transparently squid 2.2.STABLE5-hno.20000103.
The last days squid on every machine craches up to 4 times reporting the
following messages in the cache.log files:

2000/02/08 13:16:28| WARNING: FD 1223 has handlers, but it's invalid.
2000/02/08 13:16:28| FD 1223 is a None
2000/02/08 13:16:28| -->
2000/02/08 13:16:28| tmout:0x0 read:0x0 write:0x0
2000/02/08 13:16:28| WARNING: FD 1225 has handlers, but it's invalid.
2000/02/08 13:16:28| FD 1225 is a None
2000/02/08 13:16:28| -->
2000/02/08 13:16:28| tmout:0x0 read:0x0 write:0x0
2000/02/08 13:16:28| WARNING: FD 1235 has handlers, but it's invalid.
2000/02/08 13:16:28| FD 1235 is a None
2000/02/08 13:16:28| -->
2000/02/08 13:16:28| tmout:0x0 read:0x0 write:0x0
2000/02/08 13:16:28| WARNING: FD 1254 has handlers, but it's invalid.
2000/02/08 13:16:28| FD 1254 is a None
2000/02/08 13:16:28| -->
2000/02/08 13:16:28| tmout:0x0 read:0x0 write:0x0
2000/02/08 13:16:28| WARNING: FD 1259 has handlers, but it's invalid.
2000/02/08 13:16:28| FD 1259 is a None
2000/02/08 13:16:28| -->
2000/02/08 13:16:28| tmout:0x0 read:0x0 write:0x0
2000/02/08 13:16:28| WARNING: FD 881000456 has handlers, but it's invalid.
FATAL: Received Segment Violation...dying.

Any ideas?

Regards,
Panagiotis

-- 
Panagiotis J. Christias        Network Management Center
P.Christias@noc.ntua.gr        National Technical Univ. of Athens, GREECE