[SR-Users] Kamailio fails to generate core dump

[Ovidiu Sas]

Pretty annoying problem :(

Here's how I enable core dumps on linux installs in sysctl (reboot required):
fs.suid_dumpable = 1
kernel.core_pattern = /tmp/core.%e.%u.%t
kernel.core_uses_pid = 1

On a live system (no need to restart):
echo 1 > /proc/sys/fs/suid_dumpable
echo 1 > /proc/sys/kernel/core_uses_pid
echo "/tmp/core.%e.%u.%t" > /proc/sys/kernel/core_pattern

Hope that now you will be able to "enjoy" the core dumps :-/

Regards,
Ovidiu Sas

On Sat, Jan 3, 2015 at 4:38 PM, Alex Balashov <abalashov at evaristesys.com> wrote:
> Hi,
>
> I recently had a simultaneous crash on three production instances of
> Kamailio. Unfortunately, I have not been able to get to the bottom of the
> issue because Kamailio refused to produce a core dump:
>
> Dec 30 15:37:29 xxxxxx /usr/local/sbin/kamailio[13743]: ALERT: <core>
> [main.c:784]: handle_sigs(): child process 13763 exited by a signal 11
> Dec 30 15:37:29 xxxxxx /usr/local/sbin/kamailio[13743]: ALERT: <core>
> [main.c:787]: handle_sigs(): core was not generated
>
> I do not have disable_core_dump=yes (default is no), and checked ulimits for
> limits on core file size. Kamailio was running as root, and there was no
> limit.
>
> What are the other reasons why Kamailio may not generate a core dump in such
> a case?
>
> Thanks!
>
> -- Alex
>
> --
> Alex Balashov - Principal
> Evariste Systems LLC
> 235 E Ponce de Leon Ave
> Suite 106
> Decatur, GA 30030
> United States
>
> Tel: +1-678-954-0670
> Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
>
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