Hello, It's kamailio 5.6.4. I can say that there is no segfault in case Identity is OK but bad attempts sometimes are the reason for segfault. Not sure I can duplicate but it happens several times per day. Please look at logs. in messages: Apr  3 09:40:02 kam1 kernel: [6381565.762987] kamailio[9141]: segfault at 746c75616665 ip 00007f20c4cab6df sp 00007ffe7ec51470 error 4 in libcrypto.so.1.1[7f20c4c3b000+19e000] kamailio.log: Apr  3 09:40:02 kam1 kamailio[9141]: NOTICE: <script>: it is INVITE with Identity. Lets check Identity Apr  3 09:40:02 kam1 kamailio[9141]: CRITICAL: <core> [core/mem/q_malloc.c:501]: qm_free(): BUG: bad pointer 0x645f6d6574737973 (out of memory block!) called from tls: tls_init.c: ser_free(323) - ignoring Apr  3 09:40:02 kam1 kamailio[9182]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 53 Apr  3 09:40:02 kam1 kamailio[9100]: ALERT: <core> [main.c:774]: handle_sigs(): child process 9141 exited by a signal 11 Apr  3 09:40:02 kam1 kamailio[9100]: ALERT: <core> [main.c:777]: handle_sigs(): core was not generated Apr  3 09:40:02 kam1 kamailio[9100]: CRITICAL: <core> [core/mem/q_malloc.c:501]: qm_free(): BUG: bad pointer 0x645f6d6574737973 (out of memory block!) called from tls: tls_init.c: ser_free(323) - ignoring loadmodule "stirshaken.so" ####### STIRSHAKEN ###### modparam("stirshaken", "vs_verify_x509_cert_path", 1) modparam("stirshaken", "vs_ca_dir", "/etc/kamailio/stir_CA") #modparam("stirshaken", "vs_crl_dir", "/etc/kamailio/CRL") modparam("stirshaken", "as_default_key", "/etc/kamailio/key/private_key.pem") modparam("stirshaken", "vs_cache_certificates", 1) modparam("stirshaken", "vs_cache_dir", "/tmp/cert_cache") modparam("stirshaken", "vs_cache_expire_s", 100)        if (is_method("INVITE") && is_present_hf("Identity")) {                xlog("L_NOTICE", "it is INVITE with Identity. Lets check Identity\n");                if (1 == stirshaken_check_identity()) {                       xlog("L_NOTICE", "Shaken Identity is OK\n");                } else {                        xlog("L_NOTICE", "Shaken Identity is invalid\n");                }        } Please give me some advice. __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-leave(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: