23 Aug
2017
23 Aug
'17
1:50 p.m.
### Description
<!--
Send async http post request to multiple servers.
-->
### Troubleshooting
#### Reproduction
<!--
Kamailio runs for about 1-2 min till the segfault happens. Sadly there are not many infos
in the coredump. I use this config for the http modules:
https://github.com/negbie/heplify/blob/master/kamailio5/http.cfg
-->
#### Debugging Data
```
gdb kamailio core.kamailio.114.1503484559.29804
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from kamailio...(no debugging symbols found)...done.
[New LWP 29804]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/sbin/kamailio -P /var/run/kamailio/kamailio.pid -f
/etc/kamailio/kamailio.'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f4b0a1c23e9 in notification_socket_cb () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
(gdb) bt full
#0 0x00007f4b0a1c23e9 in notification_socket_cb () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#1 0x00007f4b09cf23dc in event_base_loop () from
/usr/lib/x86_64-linux-gnu/libevent-2.0.so.5
No symbol table info available.
#2 0x00007f4b0a1bec74 in async_http_run_worker () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#3 0x00007f4b0a1a886e in ?? () from
/usr/lib/x86_64-linux-gnu/kamailio/modules/http_async_client.so
No symbol table info available.
#4 0x000000000053e25a in ?? ()
No symbol table info available.
#5 0x000000000053df78 in ?? ()
No symbol table info available.
#6 0x000000000053e588 in init_child ()
No symbol table info available.
#7 0x0000000000423913 in main_loop ()
No symbol table info available.
#8 0x000000000042a308 in main ()
No symbol table info available.
(gdb)
```
#### Log Messages
```
kernel:[698859.513811] kamailio[29804]: segfault at 0 ip 00007f4b0a1c23e9 sp
00007ffeb48bdc00 error 4 in http_async_client.so[7f4b0a19e000+38000]
/usr/sbin/kamailio[29777]: ALERT: <core> [main.c:743]: handle_sigs(): child process
29804 exited by a signal 11
/usr/sbin/kamailio[29777]: ALERT: <core> [main.c:746]: handle_sigs(): core was
generated
systemd[1]: kamailio.service: main process exited, code=exited, status=1/FAILURE
systemd[1]: Unit kamailio.service entered failed state.
```
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
kamailio 5.0.2 (x86_64/linux)
```
* **Operating System**:
```
Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.43-2+deb8u2
```
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