[Kamailio-Users] kamailio crashes during connection attempt

Mon Feb 8 23:11:30 CET 2010

Hello,

On 2/8/10 11:09 PM, Dmitri wrote:
> Hello,
> The PC has private address on eth0 interface and public on ppp0
> default route looks like:
> default dev ppp0  scope link
>
> Tomorrow I'll try to play with ngrep.

it is looping on the IP you can see in the Record-Route headers:

SUBSCRIBEsip:dima at voice.djuk.ee;transport=UDP  SIP/2.0\r\nRecord-Route:<sip:90.190.13.159;lr=on>\r\nRecord-Route:<sip:90.190.13.159;lr=on>\r\nRecord-Route:<sip:90.190.13.159;lr=on>\r\nRecord-Route:<sip:90"...

Is 90.190... a local IP?

Cheers,
Daniel

> BR,
> Dmitri
>
> 08.02.2010 23:59, Daniel-Constantin Mierla пишет:
>> Hello,
>>
>> On 2/8/10 10:46 PM, Dmitri wrote:
>>> Hello,
>>> No, it is not local, it is reacheable over internet, real dns domain.
>> why is it looping then? I see many Record Route headers with same IP, 
>> should be one since it is no transport layer gatewaying.
>>
>> You can use ngrep to watch the network and see what happens with 
>> SUPBSCRIBE (watch as well looback interface).
>>
>>> Waiting for your instructions.
>>
>> Going to do a commit to make it easily via makefile.
>>
>> Cheers,
>> Daniel
>>
>>>
>>> BR,
>>> Dmitri.
>>>
>>> 08.02.2010 23:27, Daniel-Constantin Mierla пишет:
>>>> Hello,
>>>>
>>>> might be a buffer overflow somewhere else. I will send you some 
>>>> instructions to compile with memory debug one.
>>>>
>>>> Meanwhile, this seems to be a particular case (has to be found and 
>>>> fixed anyhow), the SUBSCRIBE is looping. Is voice.djuk.ee a local 
>>>> domain (matching the 'myself' condition)? If is local domain and 
>>>> not in dns then add:
>>>>
>>>> alias=voice.djuk.ee
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>>
>>>> On 2/8/10 10:14 PM, Dmitri wrote:
>>>>> Hello,
>>>>>
>>>>> Updated gdb output in attached file.
>>>>>
>>>>> BR,
>>>>> Dmitri
>>>>>
>>>>> 08.02.2010 22:51, Daniel-Constantin Mierla пишет:
>>>>>> Hello,
>>>>>>
>>>>>> once you are in gdb, run 'bt' to get the backtrace. That is very 
>>>>>> useful in the first step to see what functions were executed 
>>>>>> before the crash.
>>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>> Daniel
>>>>>>
>>>>>> On 2/8/10 9:23 PM, Dmitri wrote:
>>>>>>> Hello Klaus,
>>>>>>>
>>>>>>> Thank you for suggestion. Now I got core, and output of gdb you 
>>>>>>> may see in attached file.
>>>>>>> Core was about 40M of size.
>>>>>>> I have to say that i never used kamailio before and this crash 
>>>>>>> is my first experience.
>>>>>>>
>>>>>>> BR,
>>>>>>> Dmitri
>>>>>>>
>>>>>>> 08.02.2010 21:37, Klaus Darilion пишет:
>>>>>>>>
>>>>>>>>
>>>>>>>> Am 08.02.2010 20:00, schrieb Dmitri:
>>>>>>>>> Hello,
>>>>>>>>> 1. Yes, there is at least 2 times more space than core dump 
>>>>>>>>> needs.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> # Try specifying things manually, as user root:
>>>>>>>> echo "/tmp/core.%e.sig%s.%p" > /proc/sys/kernel/core_pattern
>>>>>>>>
>>>>>>>> # verify configuration changes
>>>>>>>> cat /proc/sys/kernel/core_pattern
>>>>>>>>
>>>>>>>> # set ulimit
>>>>>>>> ulimit -c unlimited
>>>>>>>>
>>>>>>>> # start kamailio manually
>>>>>>>> kamailio
>>>>>>>>
>>>>>>>> now kamailio should be running as user root and should be able 
>>>>>>>> to core dump into /tmp
>>>>>>>>
>>>>>>>>> 2. I could find nothing, unfortunately...
>>>>>>>>> I can only see that problem is related to tm.so library:
>>>>>>>>> kamailio kernel: [ 1051.432646] kamailio[2678]: segfault
>>>>>>>>> at 12 ip 00007fa8b592ae43 sp 00007fff48ff9f40 error 4 in
>>>>>>>>> tm.so[7fa8b5917000+72000]
>>>>>>>>
>>>>>>>> Daniel, I can't remember. Is it necessary to turn off some 
>>>>>>>> compiler optimizations in Makefile.defs to get a useful 
>>>>>>>> backtrace? (or was that in Asterisk?)
>>>>>>>>
>>>>>>>> regards
>>>>>>>> klaus
>>>>>>>>
>>>>>>>>
>>>>>>>>>
>>>>>>>>> BR,
>>>>>>>>> Dmitri
>>>>>>>>>
>>>>>>>>>>> I don't know it this applies to you but also check the 
>>>>>>>>>>> following:
>>>>>>>>>>>
>>>>>>>>>>> 1. You have enough space in the partition where $COREDIR is 
>>>>>>>>>>> created
>>>>>>>>>>> 2. Check that the user that runs kamailio (usually openser) 
>>>>>>>>>>> has read
>>>>>>>>>>> write access on that directory
>>>>>>>>>>>
>>>>>>>>>>> Also if you grep for core in the /var/log/ directory I 
>>>>>>>>>>> believe that
>>>>>>>>>>> there might be some lines either in dmesg or in messages 
>>>>>>>>>>> that tell
>>>>>>>>>>> you if a core was created or not.
>>>>>>>>>>>
>>>>>>>>>>> Hope what I said is not redundant and it helps.
>>>>>>>>>>>
>>>>>>>>>>> Marius
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Kamailio (OpenSER) - Users mailing list
>>>>>>>>> Users at lists.kamailio.org
>>>>>>>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>>>>>>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Kamailio (OpenSER) - Users mailing list
>>>>>>> Users at lists.kamailio.org
>>>>>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>>>>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>>>>
>>>>>> -- 
>>>>>> Daniel-Constantin Mierla
>>>>>> eLearning class for Kamailio 3.0.0
>>>>>> Starting Feb 8, 2010
>>>>>> *http://www.asipto.com/
>>>>>>    
>>>>>
>>>>
>>>> -- 
>>>> Daniel-Constantin Mierla
>>>> eLearning class for Kamailio 3.0.0
>>>> Starting Feb 8, 2010
>>>> *http://www.asipto.com/
>>>>    
>>>
>>
>> -- 
>> Daniel-Constantin Mierla
>> eLearning class for Kamailio 3.0.0
>> Starting Feb 8, 2010
>> *http://www.asipto.com/
>>    
>

-- 
Daniel-Constantin Mierla
eLearning class for Kamailio 3.0.0
Starting Feb 8, 2010
* http://www.asipto.com/

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