Core dump-signal IOT/Abort trap

I am running squid-1.1.alpha10 on port 81. Has any-one experienced/know
what the following problem could be?

core dump:
signal IOT/Abort trap at [__kill:41 +0x8,0x3ff800ffee8] Source
not available

cache.log:
[21/Aug/1996:18:51:56 +1200] store.c:1267: HELP! Someone is
swapping out a bad entry:
[21/Aug/1996:18:51:56 +1200] store.c:1268: Current Time: 840610316
[21/Aug/1996:18:51:56 +1200]
Key: (null)
URL: (null)
Next: 0x0
Flags: 0 ==>
Timestamp: 0 [01/Jan/1970:12:00:00 +1200]
Lastref : 0 [01/Jan/1970:12:00:00 +1200]
Expires : 0 [01/Jan/1970:12:00:00 +1200]
ObjectLen: 0
SwapFileNumber: 0
StoreStatus: STORE_OK
MemStatus: NOT_IN_MEMORY
PingStatus: PING_WAITING
SwapStatus: NO_SWAP
Method: NONE
RefCount: 0
LockCount: 0
MemObject: NULL.

Any help would be most appreciated,
thanks in advance,

-- 
Raewyn Ferguson					raewyn@elwing.otago.ac.nz
Systems Support Specialist                      webmaster@www.otago.ac.nz
Information Technology Services		             phone +64 3 479-8539
University of Otago                                  fax   +64 3 479-8577
P.O. Box 56
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New Zealand
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