[SR-Users] Dialog module generates error since upgrade to 4.2.2
Daniel-Constantin Mierla
miconda at gmail.com
Fri Jan 23 13:38:14 CET 2015
I hope to get the time to look into it either this evening or over the
weekend. I have some other logs sent to me for a dialog issue.
Daniel
On 23/01/15 12:40, Jan Hazenberg wrote:
> I indeed see the same spiral messages in the logs as well:
>
> Jan 22 14:50:33 sip /usr/sbin/kamailio[14084]: DEBUG: dialog
> [dlg_handlers.c:831]: dlg_new_dialog(): Callid
> '035a329653a80be399f7b45e6c734415 at 192.168.149.126' found, must be a
> spiraled request
>
> Jan
>
>
> Klaus Darilion schreef op 2015-01-23 11:38:
>> I think the problem with 4.2.2. is the following:
>>
>> After dialog cleanup code is not executed after script exit. Thus, if
>> the dialog is created without generating a transaction, e.g.:
>> ...
>> dialog_manage();
>> ... some checks
>> sl_send_reply();
>> exit;
>>
>> the dialog is created, but not destroyed after exit. Thus, next time a
>> request with identical dialog IDs (e.g the second INVITE after
>> authentication) is received, Kamailio finds the un-destroyed dialog and
>> falsely think this message belongs to a spiraled request and thus does
>> not register the tm_callbacks for the responses. Thus, the dialog stays
>> in state 1 forever.
>>
>> Probably there are 2 bugs:
>>
>> 1. The dialog callbacks are not executed on script exit (this works fine
>> in Kamailio 4.1.7)
>>
>> 2. The spiral detection code is buggy. Just because a dialog exists is
>> not a proof for a spiral. In fact, a request with only 1 Via header can
>> never be a spiraled request.
>>
>> regards
>> Klaus
>>
>>
>>
>> On 22.01.2015 21:02, Jan Hazenberg wrote:
>>> Klaus,
>>>
>>> Yes, that solves the problem here as well.
>>>
>>> Thanks,
>>>
>>> Jan
>>>
>>> Klaus Darilion schreef op 2015-01-22 16:16:
>>>> Hi Jan!
>>>>
>>>> I replaced dlg_manage with setflag(dialog flag). This way the
>>>> dialog is
>>>> created only when a transaction is created. It solved my problems.
>>>>
>>>> regards
>>>> Klaus
>>>>
>>>>
>>>>
>>>> On 22.01.2015 14:47, Klaus Darilion wrote:
>>>>> Nice, I have the same problem after upgrading from 4.1.7 to 4.2.2.
>>>>> ....
>>>>> ..... in my case it seems the dialog callbacks are not executed for
>>>>> responses ... I am still debugging .....
>>>>>
>>>>> On 22.01.2015 13:25, Jan Hazenberg wrote:
>>>>>> Hi All,
>>>>>>
>>>>>> I'm running into a issue with the dialog module since the upgrade
>>>>>> from
>>>>>> 4.2.1 to 4.2.2. I use the dialog module to add extra vars to the
>>>>>> cdr's
>>>>>> generated by the ACC module.
>>>>>>
>>>>>> I use the following config:
>>>>>>
>>>>>> # ----- dialog params -----
>>>>>> modparam("dialog", "enable_stats", 1)
>>>>>> modparam("dialog", "dlg_match_mode", 1)
>>>>>> modparam("dialog", "dlg_flag", FLT_DLG)
>>>>>> modparam("dialog", "rr_param", "did")
>>>>>> modparam("dialog", "wait_ack", 1)
>>>>>>
>>>>>> # Create dialog
>>>>>> if (method=="INVITE") {
>>>>>> # Create Dialog
>>>>>> dlg_manage();
>>>>>>
>>>>>> # Add test dialog var
>>>>>> $dlg_var(src_ua) = $hdr(User-Agent);
>>>>>> }
>>>>>>
>>>>>>
>>>>>> This seems to work fine on kamailio 4.2.1 but after the upgrade i
>>>>>> see
>>>>>> the following errors in the logs:
>>>>>>
>>>>>> Jan 22 13:16:57 sip /usr/sbin/kamailio[2773]: CRITICAL: dialog
>>>>>> [dlg_hash.c:901]: log_next_state_dlg(): bogus event 6 in state 1 for
>>>>>> dlg
>>>>>> 0x7f2f0332ed40 [3693:11222] with clid
>>>>>> '9192c5fc24627a14c2ec42f084a96587 at 192.168.149.126' and tags
>>>>>> '4017642921' ''
>>>>>> Jan 22 13:17:01 sip /usr/sbin/kamailio[2770]: CRITICAL: dialog
>>>>>> [dlg_hash.c:901]: log_next_state_dlg(): bogus event 7 in state 1 for
>>>>>> dlg
>>>>>> 0x7f2f0332ed40 [3693:11222] with clid
>>>>>> '9192c5fc24627a14c2ec42f084a96587 at 192.168.149.126' and tags
>>>>>> '4017642921' ''
>>>>>>
>>>>>> If i'm correct "bogus event 6 in state 1" indicates that a ACK whas
>>>>>> received while the dialog still was in unconfirmed state. Should i
>>>>>> catch
>>>>>> the 200 OK on the INVITE to update the dialog?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Jan Hazenberg
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
>>>>>> mailing list
>>>>>> sr-users at lists.sip-router.org
>>>>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>>> _______________________________________________
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>>>>
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--
Daniel-Constantin Mierla
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