I'm testing with this kamailio version: $ kamcmd version kamailio 5.5.4 (x86_64/linux) 54c9df on: $ cat /etc/issue Debian GNU/Linux 11 \n \l with: $ openssl version OpenSSL 1.1.1k  25 Mar 2021 Whenever I start kamailio I get 3199 log lines like this: 2022-03-10T10:04:39.700676+09:00 lab002201-flip-server /usr/local/src/git/kamailio-5.5/src/kamailio[261703]: CRITICAL: <core> [core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f8eb57f7848), called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) - ignoring I searched the issues at github and found:   https://github.com/kamailio/kamailio/issues/2560   https://github.com/kamailio/kamailio/issues/2912 So I tried to start kamailio with    --atexit=no  but those logs remain. With and without using --atexit=no there is no crash and all my tests are OK. But should I be worried to put this in production? __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

On 11.03.22 11:14, Daniel-Constantin Mierla wrote: until they are not,

i.e. when (not if) something else manages to allocate the memory in question before the second "free" comes along, you have a problem. How to proceed: replace the         shm_free(ptr); at line 323 of tls_init.c with its macro expansion, i.e.         _shm_root.xfree(_shm_root.mem_block, (p), "shm", fname, fline, "tls") (or something along these lines) so that you get some idea of where these "shm_free" calls originate. This probably should also be done for the calls to malloc and realloc. There's no good reason to throw away the debug information. --  -- regards --  -- Matthias Urlichs __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users