I'm seeing my squid processes die and restart. I think it's related to a bad cache file but I am unsure how to track it down. I have rebuilt the cache by removing the swap.state file and starting squid back up. Here's what I'm seeing in my logs. 2009/12/21 22:07:01| WARNING: 1 swapin MD5 mismatches 2009/12/21 22:07:01| could not parse headers from on disk structure! FATAL: Received Segment Violation...dying. 2009/12/21 22:07:01| storeDirWriteCleanLogs: Starting... 2009/12/21 22:07:01| WARNING: Closing open FD 58 2009/12/21 22:07:01| WARNING: Closing open FD 59 2009/12/21 22:07:01| 65536 entries written so far. 2009/12/21 22:07:01| 131072 entries written so far. Thanks Dusten