Hello,

If it is something that it repeats, try to get the core file, the log message says core was not generated.

You have to start kamailio as user root in order to have all privileges, then before starting kamailio, in the terminal, run:

ulimit -c unlimited

Now start kamailio and then reproduce the case. From the corefile using gdb get the output of "bt full". The corefile can be located in / folder or where you set the working directory via kamailio's -w command line options. It would be good to enable core file per process as well.

Cheers,
Daniel

Hi All,

As part of our very low cps load at 50 calls per second through Kamailio Version 5.3.2 (Dispatcher Module used with Call Load based Routing - Algorithm 10. Machine is a Centos: 7.7 with kernel version 3.10), we are seeing the kamailio continuously crashing. Please see the data below for 3 types of segfaults seen:

Crash-1:
--------
Apr  3 19:32:25 FE-A07-34-VM6 kernel: kamailio[10382]: segfault at 7ff300000078 ip 00007ff300000078 sp 00007ffe5f2eafc8 error 14 in libbz2.so.1.0.6[7ff331582000+f000]
Apr  3 19:32:25 FE-A07-34-VM6 mysqld: 2020-04-03 19:32:25 6131 [Warning] Aborted connection 6131 to db: 'kamailio' user: 'kamailio' host: 'localhost' (Got an error reading communication packets)
Apr  3 19:32:25 FE-A07-34-VM6 /usr/sbin/kamailio[10423]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 13
Apr  3 19:32:25 FE-A07-34-VM6 /usr/sbin/kamailio[10381]: ALERT: <core> [main.c:767]: handle_sigs(): child process 10382 exited by a signal 11
Apr  3 19:32:25 FE-A07-34-VM6 /usr/sbin/kamailio[10381]: ALERT: <core> [main.c:770]: handle_sigs(): core was not generated
===============================
Crash-2:
-------
Apr  3 19:36:11 FE-A07-34-VM6 kernel: kamailio[12838]: segfault at 7efe00000078 ip 00007efe00000078 sp 00007ffdc876b868 error 15 in zero (deleted)[7efdc407f000+40000000]
Apr  3 19:36:11 FE-A07-34-VM6 mysqld: 2020-04-03 19:36:11 6175 [Warning] Aborted connection 6175 to db: 'kamailio' user: 'kamailio' host: 'localhost' (Got an error reading communication packets)
Apr  3 19:36:11 FE-A07-34-VM6 /usr/sbin/kamailio[12874]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 18
Apr  3 19:36:11 FE-A07-34-VM6 /usr/sbin/kamailio[12826]: ALERT: <core> [main.c:767]: handle_sigs(): child process 12838 exited by a signal 11
Apr  3 19:36:11 FE-A07-34-VM6 /usr/sbin/kamailio[12826]: ALERT: <core> [main.c:770]: handle_sigs(): core was not generated
============================
Crash-3:
--------
Apr  3 19:40:53 FE-A07-34-VM6 kernel: kamailio[13542]: segfault at 80 ip 000000000065e193 sp 00007ffdae10c1f0 error 4 in kamailio[400000+476000]
Apr  3 19:40:53 FE-A07-34-VM6 mysqld: 2020-04-03 19:40:53 6222 [Warning] Aborted connection 6222 to db: 'kamailio' user: 'kamailio' host: 'localhost' (Got an error reading communication packets)
Apr  3 19:40:53 FE-A07-34-VM6 /usr/sbin/kamailio[13516]: ALERT: <core> [main.c:767]: handle_sigs(): child process 13542 exited by a signal 11
Apr  3 19:40:53 FE-A07-34-VM6 /usr/sbin/kamailio[13558]: CRITICAL: <core> [core/pass_fd.c:277]: receive_fd(): EOF on 38
Apr  3 19:40:53 FE-A07-34-VM6 /usr/sbin/kamailio[13516]: ALERT: <core> [main.c:770]: handle_sigs(): core was not generated

Any pointers for resolution are most welcome as we need to quickly resolve this. 

Regards,

Harneet Singh 

--

"Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth" - Sir Arthur Conan Doyle

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