FATAL: Received Segment Violation...dying.

Hi All.

After 73 days uptime of my Linux with SQUID-2.3.S2, SQUID did write subj. message to his
cache log, and was automaticaly restarted.
This was done two times. First today at 6 am, and second at 8 am.
Here is a cut from cache.log
-------
CPU Usage: 2330.030 seconds = 1058.360 user + 1271.670 sys
Maximum Resident size: 0 KB
Page faults with physical i/o: 6949
Memory usage for squid via mallinfo():
    total space in arena: 54361 KB
    Ordinary blocks: 53431 KB 728 blks
    Small blocks: 0 KB 0 blks
    Holding blocks 496 KB 2 blks
    Free Small blocks 0 KB
    Free ordinary blocks 930 KB
    Total in use: 53927 KB 99%
    Total free: 930 KB 2%

---
Squid is running with Async io.
The HW is:
PII 450 with 128MB RAM
UDMA66 HD for cache is splited to two partitions for cache1 and cache 2.
Can somebody tell me why it happens?
Thanks a lot.
-- ISO 8859-2 compatibile --
Martin Och
Network Administrator
To "shut down" your system type "WIN"