Under Solaris 10 squid 3.3.5 dump core every 10 minutes even with a very low traffic. squid 3.3.4 was stable. -rw------- 1 root root 24091108 Jun 5 08:34 core.squid.4970 -rw------- 1 root root 28195300 Jun 5 08:44 core.squid.15773 -rw------- 1 root root 23124452 Jun 5 08:54 core.squid.26776 -rw------- 1 root root 24181220 Jun 5 09:04 core.squid.7439 -rw------- 1 root root 24328676 Jun 5 09:14 core.squid.18408 -rw------- 1 root root 23591396 Jun 5 09:24 core.squid.28841 -rw------- 1 root root 22501860 Jun 5 09:31 core.squid.9897 -rw------- 1 root root 24173028 Jun 5 09:41 core.squid.16998 -rw------- 1 root root 20756964 Jun 5 09:51 core.squid.1540 -rw------- 1 root root 21199332 Jun 5 10:01 core.squid.17062 -rw------- 1 root root 19216868 Jun 5 10:09 core.squid.29399 pstack core.squid.9897 core 'core.squid.9897' of 9897: (squid-1) -s fea6c067 _lwp_kill (1, 6) + 7 fea13883 raise (6) + 1f fe9f29e1 abort (83e6f08, 84aacd0, 8046e18, 82cf171, 83b575e, 83b4703) + cd 08166d5c _Z8ctx_exiti (83b575e, 83b4703, 11f, 84aacd0) 082cf171 _ZN12ACLChecklist9matchNodeERK7ACLListb (8e1dc80, 8601df8, 0, 0) + d1 082cf7db _ZN12ACLChecklist10matchNodesEPK7ACLListb (8e1dc80, 8601de0, 0, 83e6f08, 8cf9978, 83e6f08) + 53 082cfc93 _ZN12ACLChecklist12matchAclListEPK7ACLListb (8e1dc80, 8601de0, 0, 84aace0) + 23 082cff77 _ZN12ACLChecklist15checkAccessListEv (8e1dc80, 1, 40, 7, 83e6f08, 8e1dce4) + 3f 082d02b9 _ZN12ACLChecklist16matchNonBlockingEv (8e1dc80, 83b58bd, 0, 16) + 89 082d07b1 _ZN12ACLChecklist16nonBlockingCheckEPFv7allow_tPvES1_ (8e1dc80, 815b810, 8c29a90, 81255bd) + 41 0815b8fc _ZN20ClientRequestContext17clientAccessCheckEv (8c29a90, 0, 0, 0, 0, 0) + b8 081593dc _ZN17ClientHttpRequest10doCalloutsEv (8d05980, 8d080b0, 8047148, 8382fcf, 85fdb20, 0) + 110 0815d121 _ZN20ClientRequestContext16hostHeaderVerifyEv (8c29a90, 8c7a630, a, 80471b0, 80471b0, 8047250) + 92d 08159331 _ZN17ClientHttpRequest10doCalloutsEv (8d05980, 8d05980, 0, 1) + 65 0813c2b9 _ZN13ConnStateData19clientParseRequestsEv (8cf9978, 83a5441, 814109a, 8cf9978) + 1bd5 081410ac _ZN13ConnStateData17clientReadRequestERK14CommIoCbParams (8cf9978, 8d26ff8, 8047608, 8d26fec) + 2dc 0814bd31 _ZN13CommCbMemFunTI13ConnStateData14CommIoCbParamsE6doDialEv (8d26fec, 8d26fd0, 0, 8d26fd0) + 2d 0814bdd2 _ZN9JobDialerI13ConnStateDataE4dialER9AsyncCall (8d26fec, 8d26fd0, 8047648, 83e6f08) + 2e 0814bf83 _ZN10AsyncCallTI13CommCbMemFunTI13ConnStateData14CommIoCbParamsEE4fireEv (8d26fd0, f0, 8047698, 82d11ca) + 13 082d12e1 _ZN9AsyncCall4makeEv (8d26fd0, 857a1c8, 8047698, 82d4c3b, 0, 0) + 125 082d4e1d _ZN14AsyncCallQueue8fireNextEv (8603720, 80476e0, 8e7305c, 82d5027) + 1f5 082d5041 _ZN14AsyncCallQueue4fireEv (8603720, 80477f0, 8047728, 81850ab, 8047750, 8047828) + 2d 081850b4 _ZN9EventLoop13dispatchCallsEv (8047820, 80477f0, 1, 0) + 14 0818541c _ZN9EventLoop7runOnceEv (8047820, 8047828, 8185582, 8047820) + f8 0818558d _ZN9EventLoop3runEv (8047820, 80477f0, 8047c78, 81ffcc3) + 19 081ff4a9 _Z9SquidMainiPPc (2, 8047cd8, 83e6f08, 849d2a8) + 585 081ffd66 main (2, 8047cd8, 8047ce4) + 16 080fc3dc _start (2, 8047dc0, 8047dca, 0, 8047dcd, 8047dda) + 80
