On Sep 22, 2022, at 7:20 AM, Henning Westerholt &lt;hw(a)gilawa.com&gt; wrote: Hi Alex, It probably makes sense to analyse this further in an issue report, with some more details and/or ways how to reproduce it. You are right, a python exception should not cause a stop of execution from the Kamailio. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com -----Original Message----- From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Alex Balashov Sent: Thursday, September 22, 2022 12:32 PM To: Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org&gt; Subject: [SR-Users] app_python3 crash woes Hi, Some exceptions generated in Python script cause a harmless traceback in the logs, while others cause Kamailio to crash: Sep 22 06:28:34 proxy /usr/sbin/kamailio[3984]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 11 Sep 22 06:28:34 proxy /usr/sbin/kamailio[3957]: ALERT: <core> [main.c:783]: handle_sigs(): child process 3965 exited by a signal 11 Sep 22 06:28:34 proxy /usr/sbin/kamailio[3957]: ALERT: <core> [main.c:786]: handle_sigs(): core was generated (gdb) where #0 0x00007fdaea729079 in vfprintf () from /lib64/libc.so.6 #1 0x00007fdaea754179 in vsnprintf () from /lib64/libc.so.6 #2 0x00007fdac45e9afd in make_message () from /usr/lib64/kamailio/modules/app_python3.so #3 0x00007fdac45e5bc9 in python_handle_exception () from /usr/lib64/kamailio/modules/app_python3.so #4 0x00007fdac45ebfde in apy_exec () from /usr/lib64/kamailio/modules/app_python3.so #5 0x00007fdac45ecef1 in python_exec2 () from /usr/lib64/kamailio/modules/app_python3.so #6 0x0000000000474ee0 in do_action () #7 0x000000000048217d in run_actions () #8 0x0000000000474d39 in do_action () #9 0x000000000048217d in run_actions () #10 0x0000000000474d39 in do_action () #11 0x000000000048217d in run_actions () #12 0x0000000000474d87 in do_action () #13 0x000000000048217d in run_actions () #14 0x00000000004828c1 in run_top_route () #15 0x00000000005e8044 in receive_msg () #16 0x00000000004df772 in udp_rcv_loop () #17 0x0000000000429f5b in main_loop () #18 0x000000000043423e in main () Is there a reasonable way to try to prevent this type of mid-air explosion? — Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ __________________________________________________________ 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