[SR-Users] segfault problem with unixodbc module

[Lucas Wals Ochoa]

Hello, this is the first time I send a question here, hope my english is
good enough to explain my problem.

I have a Kamailio 4.1.8+RTPProxy setup working, but recently I saw RTP
Engine proxy, so I decided to give a try. I installed the latest kamailio
stable version (4.2.3) and adapt the configuration I have(that uses a
MariaDB database), to try the rtpengine module, but I couldn't even start
kamailio process, cause I received a segfault problem at unixodbc module.
The version of unixodbc that I installed is 2.3.1-10

That was the first time I encounter this error. I thought that maybe the
database I have created with the version 4.1.8 wasn't compatible, so I
decided to create a new database, but the problem persisted.

So I'm here to know if someone know something about this, or have had a
similar problem.
I attached the system log for Kamailio, and a backtrace I made using "gdb"
with the corefile that Kamailio creates when it crash.

Log:
Mar  4 12:46:35 localhost systemd: Starting SYSV: Kamailio is a fast,
reliable and flexible SIP Server....
Mar  4 12:46:35 localhost kamailio: WARNING: <core> [socket_info.c:1392]:
fix_hostname(): could not rev. resolve 10.0.0.70
Mar  4 12:46:35 localhost /usr/sbin/kamailio[2369]: WARNING: tm [tm.c:845]:
mod_init(): WARNING: mod_init: reparse_on_dns_failover is enabled on a
multihomed host -- check the readme of tm module!
Mar  4 12:46:35 localhost /usr/sbin/kamailio[2369]: INFO: rr
[../outbound/api.h:54]: ob_load_api(): Failed to import bind_ob
Mar  4 12:46:35 localhost /usr/sbin/kamailio[2369]: INFO: rr
[rr_mod.c:160]: mod_init(): outbound module not available
Mar  4 12:46:35 localhost /usr/sbin/kamailio[2369]: INFO: usrloc
[hslot.c:53]: ul_init_locks(): locks array size 1024
Mar  4 12:46:35 localhost /usr/sbin/kamailio[2369]: INFO: auth
[auth_mod.c:350]: mod_init(): auth: qop set, but nonce-count (nc_enabled)
support disabled
Mar  4 12:46:35 localhost kernel: kamailio[2369]: segfault at 10070 ip
00007fc3d554df7e sp 00007fff89556450 error 4 in
libmyodbc5w.so[7fc3d5527000+47000]
Mar  4 12:46:35 localhost kamailio: ERROR: <core> [daemonize.c:315]:
daemonize(): Main process exited before writing to pipe
Mar  4 12:46:35 localhost kamailio: Starting kamailio:
Mar  4 12:46:35 localhost systemd: kamailio.service: control process
exited, code=exited status=1
Mar  4 12:46:35 localhost systemd: Failed to start SYSV: Kamailio is a
fast, reliable and flexible SIP Server..
Mar  4 12:46:35 localhost systemd: Unit kamailio.service entered failed
state.

Backtrace of gdb:
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/sbin/kamailio -P /var/run/kamailio.pid -m 64 -M
8 -u kamailio -g kamailio'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007fc3d554df7e in get_ctype () from /usr/lib64/libmyodbc5.so
Missing separate debuginfos, use: debuginfo-install
kamailio-4.2.3-3.1.x86_64
(gdb) backtrace
#0  0x00007fc3d554df7e in get_ctype () from /usr/lib64/libmyodbc5.so
#1  0x00007fc3d554dfac in init_parser () from /usr/lib64/libmyodbc5.so
#2  0x00007fc3d554ec41 in parse () from /usr/lib64/libmyodbc5.so
#3  0x00007fc3d5553484 in prepare () from /usr/lib64/libmyodbc5.so
#4  0x00007fc3d5559e9c in SQLPrepareWImpl () from /usr/lib64/libmyodbc5.so
#5  0x00007fc3d5559eb9 in SQLExecDirectW () from /usr/lib64/libmyodbc5.so
#6  0x00007fc3de43b05f in SQLExecDirect () from /lib64/libodbc.so.2
#7  0x00007fc3de695302 in db_unixodbc_submit_query () from
/usr/lib64/kamailio/modules/db_unixodbc.so
#8  0x00007fc3de21522e in db_do_submit_query () from
/usr/lib64/kamailio/libsrdb1.so.1
#9  0x00007fc3de215cf7 in db_do_query_internal () from
/usr/lib64/kamailio/libsrdb1.so.1
#10 0x00007fc3de21661a in db_do_query () from
/usr/lib64/kamailio/libsrdb1.so.1
#11 0x00007fc3de696d90 in db_unixodbc_query () from
/usr/lib64/kamailio/modules/db_unixodbc.so
#12 0x00007fc3de20ce90 in db_table_version () from
/usr/lib64/kamailio/libsrdb1.so.1
#13 0x00007fc3da209693 in init_ds_db () from
/usr/lib64/kamailio/modules/dispatcher.so
#14 0x00007fc3da1f4f1a in mod_init () from
/usr/lib64/kamailio/modules/dispatcher.so
#15 0x0000000000520e8d in init_mod ()
#16 0x0000000000520be8 in init_mod ()
#17 0x000000000052119a in init_modules ()
#18 0x0000000000517951 in main ()

Hope someone can help me. Thanks in advance.
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