Hi, I'm running 3.1.0.15 with 2 patches applied - http://bugs.squid-cache.org/show_bug.cgi?id=2731 - http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-9827.patch Since firing up the patched version the squids in question keep restarting every once in a while. The restarts happen without any ERROR messages, and only with debug_level ALL/3 I discovered the following in cache.log (these are collected from multiple instances of squid, so allow for overlapping time intervals/the "enter_suid" line marks the restart): ------------------------------------------------------------- 2010/01/28 11:29:08.787| StoreEntry::unlock: key '43147CDD44B214A70B78C659B4F7D42C' count=2 2010/01/28 11:29:08.787| forward.cc(186) ~FwdState: FwdState destructor done 2010/01/28 11:29:08.787| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x86660d0 [async7863] 2010/01/28 11:29:08.787| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x86664ac [async7864] 2010/01/28 11:29:08.787| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x8666758 [async7865] 2010/01/28 11:29:08.787| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x8666b34 [async7866] 2010/01/28 11:29:11.922| enter_suid: PID 14248 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:29:33.125| persistentConnStatus: FD 279 eof=0 2010/01/28 11:29:33.125| comm.cc(1193) commSetTimeout: FD 279 timeout 900 2010/01/28 11:29:33.125| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866b5c8 [async7196] 2010/01/28 11:29:43.236| enter_suid: PID 14262 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:29:17.583| ACLChecklist::markFinished: 0xbfa6ccd0 checklist processing finished 2010/01/28 11:29:17.583| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x8667090 [async14522] 2010/01/28 11:29:17.583| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x86680e4 [async14523] 2010/01/28 11:29:17.583| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x8667d08 [async14524] 2010/01/28 11:29:17.583| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x8666334 [async14525] 2010/01/28 11:29:24.587| enter_suid: PID 14257 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:29:51.004| Launcher.cc(58) noteAdaptationAnswer: Adaptation::Icap::Launcher::noteAdaptationAnswer exiting 2010/01/28 11:29:51.004| fd_close FD 167 icap://192.168.100.101:1344/reqmod 2010/01/28 11:29:51.004| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a5ec [async1678] 2010/01/28 11:29:51.004| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a424 [async1679] 2010/01/28 11:29:54.034| enter_suid: PID 14271 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:30:03.372| fd_close FD 210 icap://192.168.100.101:1344/reqmod 2010/01/28 11:30:03.372| Launcher.cc(58) noteAdaptationAnswer: Adaptation::Icap::Launcher::noteAdaptationAnswer exiting 2010/01/28 11:30:03.372| fd_close FD 206 icap://192.168.100.101:1344/reqmod 2010/01/28 11:30:03.372| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a4d4 [async2711] 2010/01/28 11:30:06.588| enter_suid: PID 14295 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:29:39.855| Launcher.cc(58) noteAdaptationAnswer: Adaptation::Icap::Launcher::noteAdaptationAnswer exiting 2010/01/28 11:29:39.855| fd_close FD 288 icap://192.168.100.100:1344/reqmod 2010/01/28 11:29:39.855| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866acbc [async9577] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a8e0 [async9578] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a128 [async9579] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a6cc [async9580] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a634 [async9581] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866ad08 [async9582] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a764 [async9583] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866abd8 [async9584] 2010/01/28 11:29:39.856| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866a848 [async9585] 2010/01/28 11:29:43.256| enter_suid: PID 14265 taking root priveleges ------------------------------------------------------------- 2010/01/28 11:29:58.272| ACLChecklist::checkCallback: 0x865dc70 answer=1 2010/01/28 11:29:58.272| AccessCheck.cc(155) callBack: 0x86401d8*23 2010/01/28 11:29:58.272| client_side_request.cc(636) adaptationAclCheckDone: 0x8659cd8 adaptationAclCheckDone called 2010/01/28 11:29:58.272| client_side_request.cc(1328) startAdaptation: adaptation needed for 0x87ae7f8 2010/01/28 11:29:58.272| AsyncJob of type Iterator constructed, this=0x8666114 [async4296] 2010/01/28 11:29:58.272| AsyncJob of type Adaptation::Icap::ModXactLauncher constructed, this=0x866aadc [async4297] 2010/01/28 11:30:01.345| enter_suid: PID 14287 taking root priveleges ------------------------------------------------------------- Anybody spots something suspicious? 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