Dear squid community, After upgrading Squid from v4.13-10+deb11u2 (bullseye) to v5.7-2 (bookworm) I started to get about 5 core dumps per day like below. How can I find out the root of the problem and eliminate it? Thanks in advance! # coredumpctl gdb -1 --no-pager PID: 357187 (squid) UID: 13 (proxy) GID: 13 (proxy) Signal: 6 (ABRT) Timestamp: Wed 2023-09-27 11:27:08 CEST (5h 16min ago) Command Line: $'(squid-1)' --kid squid-1 --foreground -sYC Executable: /usr/sbin/squid Control Group: /system.slice/squid.service Unit: squid.service Slice: system.slice Storage: /var/lib/systemd/coredump/core.squid.13.f7e894167d564f788825cae8827bd2df.357187.1695806828000000.zst (present) Size on Disk: 2.5M Message: Process 357187 (squid) of user 13 dumped core. Module libsystemd.so.0 from deb systemd-252.12-1~deb12u1.amd64 Stack trace of thread 357187: #0 0x00007f752b2a9d3c n/a (libc.so.6 + 0x8ad3c) #1 0x00007f752b25af32 raise (libc.so.6 + 0x3bf32) #2 0x00007f752b245472 abort (libc.so.6 + 0x26472) #3 0x00007f752b245395 n/a (libc.so.6 + 0x26395) #4 0x00007f752b253e32 __assert_fail (libc.so.6 + 0x34e32) #5 0x00005576cf7c0ee4 _ZNK2Ip7Address11getAddrInfoERP8addrinfoi (squid + 0x466ee4) #6 0x00005576cf7bc3c5 _Z11comm_openexiiRN2Ip7AddressEiPKc (squid + 0x4623c5) #7 0x00005576cf80fdfe _ZN4Comm10ConnOpener8createFdEv (squid + 0x4b5dfe) #8 0x00005576cf8109c1 _ZN4Comm10ConnOpener5startEv (squid + 0x4b69c1) #9 0x00005576cf7ab09c _ZN9JobDialerI8AsyncJobE4dialER9AsyncCall (squid + 0x45109c) #10 0x00005576cf7a779f _ZN14AsyncCallQueue8fireNextEv (squid + 0x44d79f) #11 0x00005576cf7a7b52 _ZN14AsyncCallQueue4fireEv (squid + 0x44db52) #12 0x00005576cf55f689 _ZN9EventLoop7runOnceEv (squid + 0x205689) #13 0x00005576cf55f778 _ZN9EventLoop3runEv (squid + 0x205778) #14 0x00005576cf665a50 _Z9SquidMainiPPc (squid + 0x30ba50) #15 0x00005576cf4fdae1 main (squid + 0x1a3ae1) #16 0x00007f752b2461ca n/a (libc.so.6 + 0x271ca) #17 0x00007f752b246285 __libc_start_main (libc.so.6 + 0x27285) #18 0x00005576cf505cc1 _start (squid + 0x1abcc1) ELF object binary architecture: AMD x86-64 GNU gdb (Debian 13.1-3) 13.1 Reading symbols from /usr/sbin/squid... (No debugging symbols found in /usr/sbin/squid) [New LWP 357187] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `(squid-1) --kid squid-1 --foreground -sYC'. Program terminated with signal SIGABRT, Aborted. (gdb) bt #0 0x00007f752b2a9d3c in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007f752b25af32 in raise () from /lib/x86_64-linux-gnu/libc.so.6 #2 0x00007f752b245472 in abort () from /lib/x86_64-linux-gnu/libc.so.6 #3 0x00007f752b245395 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #4 0x00007f752b253e32 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 #5 0x00005576cf7c0ee4 in Ip::Address::getAddrInfo(addrinfo*&, int) const () #6 0x00005576cf7bc3c5 in comm_openex(int, int, Ip::Address&, int, char const*) () #7 0x00005576cf80fdfe in Comm::ConnOpener::createFd() () #8 0x00005576cf8109c1 in Comm::ConnOpener::start() () #9 0x00005576cf7ab09c in JobDialer<AsyncJob>::dial(AsyncCall&) () #10 0x00005576cf7a779f in AsyncCallQueue::fireNext() () #11 0x00005576cf7a7b52 in AsyncCallQueue::fire() () #12 0x00005576cf55f689 in EventLoop::runOnce() () #13 0x00005576cf55f778 in EventLoop::run() () #14 0x00005576cf665a50 in SquidMain(int, char**) () #15 0x00005576cf4fdae1 in main () (gdb) exit -- With best regards, Dmitry _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx https://lists.squid-cache.org/listinfo/squid-users