2 Mar
2011
2 Mar
'11
12:45 p.m.
Hello,
looks like related to the callbacks for dialog module. Are you loading
other modules that require dialog module?
Checking the time staps from the acc and the crash log, the BYE for the
dialog was before the crash but the To-tag is not printed from
dlg_hash.c, although it is in the acc for INVITE and BYE. Do you have
parallel forking in front of this SIP server? I mean, is there another
proxy that can do parallel forking then send two or more branches to
this instance?
I will dig in more to see what went wrong there.
Thanks,
Daniel
On 3/2/11 4:34 PM, Anton Roman wrote:
Hi all,
we are running Kamailio 3.1.2 in a production environment, using the
dialog module, and it crashed two hours ago.
Here you have the logs we got (addtional log fragments with the acc
records involved in this call are appended at the end of the mail):
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28927]: CRITICAL:
dialog [dlg_hash.c:599]: bogus ref -1 with cnt 1 for dlg
0x7f23f472db30 [2490:1070436595] with clid
'e0a20cb844d211e0acd8001422093865@<CLIENT IP>' and tags
'1577886432-3759264324-335599788-1698171170' ''
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28927]: : <core>
[mem/q_malloc.c:446]: BUG: qm_free: freeing already freed pointer,
first free: dialog: dlg_cb.c: destroy_dlg_callbacks_list(80) - aborting
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28896]: ALERT:
<core> [main.c:741]: child process 28927 exited by a signal 6
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28896]: ALERT:
<core> [main.c:744]: core was not generated
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28896]: INFO:
<core> [main.c:756]: INFO: terminating due to SIGCHLD
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28948]: INFO:
<core> [main.c:807]: INFO: signal 15 received
Mar 2 14:43:05 kamailio2 /usr/local/sbin/kamailio[28942]: INFO:
<core> [main.c:807]: INFO: signal 15 received
We get the kamailio code from git last week:
sercmd> core.info <http://core.info/>
{
version: kamailio 3.1.2
id: 4ace86
compiler: gcc 4.3.2
compiled: 09:12:36 Feb 23 2011
flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS,
USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM,
SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX,
FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
USE_DST_BLACKLIST, HAVE_RESOLV_RES
}
The problem looks like this other one already fixed:
http://lists.sip-router.org/pipermail/sr-users/2009-November/027351.html
We set the Kamailio to debug level in case it happens again.
On the other side, I need to know why the core is not been generated.
I have already checked the points mentioned in
http://www.kamailio.org/dokuwiki/doku.php/troubleshooting:corefiles
1. disable_core_dump is not set in the config file.
2. From /etc/default/kamailio:
...
DUMP_CORE=yes
...
2. From /etc/init.d/kamailio:
...
if test "$DUMP_CORE" = "yes" ; then
# set proper ulimit
ulimit -c unlimited
# directory for the core dump files
COREDIR=/home/corefiles
[ -d $COREDIR ] || mkdir $COREDIR
chmod 777 $COREDIR
echo "$COREDIR/core.%e.sig%s.%p" > /proc/sys/kernel/core_pattern
fi
...
4. Writting permissions of $COREDIR
ls -hall /home
...
drwxrwxrwx 2 root root 4.0K 2010-12-21 09:15 corefiles
...
What else should I check?
Thanks in advance,
regards
Antón
*Acc records related to the dialog whose destruction causes the problem:*
Mar 2 14:42:44 kamailio2 /usr/local/sbin/kamailio[28902]: NOTICE: acc
[acc.c:275]: ACC: transaction answered:
timestamp=1299073364;method=INVITE;from_tag=1577886432-3759264324-335599788-1698171170;to_tag=5FFAEA34-6A;call_id=e0a20cb844d211e0acd8001422093865@<client
IP>;code=200;reason=OK;src_user=<caller number>;src_domain=<client
IP>;dst_ouser=<called number>;dst_user=<called
number>;dst_domain=10.90.1.251;src_ip=<client IP>
...
Mar 2 14:42:44 kamailio2 /usr/local/sbin/kamailio[28920]: NOTICE: acc
[acc.c:275]: ACC: request acknowledged:
timestamp=1299073364;method=ACK;from_tag=1577886432-3759264324-335599788-1698171170;to_tag=5FFAEA34-6A;call_id=e0a20cb844d211e0acd8001422093865@<client
IP>;code=200;reason=OK;src_user=<caller number>;src_domain=<client
IP>;dst_ouser=<called number>;dst_user=<called
number>;dst_domain=10.90.1.251;src_ip=<client IP>
...
Mar 2 14:43:00 kamailio2 /usr/local/sbin/kamailio[28903]: ERROR:
<script>: ACK WITHOUT MATCHING TRANSACTION in
e0a20cb844d211e0acd8001422093865@<client IP> call... ignore and discard.
...
Mar 2 14:43:00 kamailio2 /usr/local/sbin/kamailio[28904]: NOTICE: acc
[acc.c:275]: ACC: transaction answered:
timestamp=1299073380;method=BYE;from_tag=1577886432-3759264324-335599788-1698171170;to_tag=5FFAEA34-6A;call_id=e0a20cb844d211e0acd8001422093865@<client
IP>;code=200;reason=OK;src_user=<caller number>;src_domain=<client
IP>;dst_ouser=<called number>;dst_user=<called
number>;dst_domain=10.90.1.251;src_ip=<client IP>
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http://www.asipto.com