Kamailio 5.3.2 - Signal 11 on startup - sr-users

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José Seabra

20 Mar 2020 20 Mar '20

3:47 p.m.

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up, it breaks with signal 11 and generates a coredump file:

- https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I configure DMQ with one worker only, which takes me to think that it's something related to concurrency.

Best regards

-- Cumprimentos José Seabra

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Daniel-Constantin Mierla

20 Mar 20 Mar

4:02 p.m.

Hello,

does it happen every time or only in some cases? Iirc, there was a similar report for an older version recently, so it might be some old bug not detected yet.

Cheers, Daniel

On 20.03.20 16:47, José Seabra wrote:

...

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up, it breaks with signal 11 and generates a coredump file:

https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I configure DMQ with one worker only, which takes me to think that it's something related to concurrency.

Best regards

Cumprimentos José Seabra

Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

José Seabra

4:16 p.m.

Hello Daniel,

Not all the time, but it happens often, I can easily reproduce the issue.

Best Regards José

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia sexta, 20/03/2020 à(s) 16:02:

...

Hello,

does it happen every time or only in some cases? Iirc, there was a similar report for an older version recently, so it might be some old bug not detected yet.

Cheers, Daniel On 20.03.20 16:47, José Seabra wrote:

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up, it breaks with signal 11 and generates a coredump file:

https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I configure DMQ with one worker only, which takes me to think that it's something related to concurrency.

Best regards

Cumprimentos José Seabra

Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

Daniel-Constantin Mierla

6:32 p.m.

Hello,

can you try with the patch from the next commit?

* https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b116...

Cheers, Daniel

On 20.03.20 17:16, José Seabra wrote:

...

Hello Daniel,

Not all the time, but it happens often, I can easily reproduce the issue.

Best Regards José

Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> escreveu no dia sexta, 20/03/2020 à(s) 16:02:

Hello,

does it happen every time or only in some cases? Iirc, there was a
similar report for an older version recently, so it might be some
old bug not detected yet.

Cheers,
Daniel

On 20.03.20 16:47, José Seabra wrote:

...

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up,
it breaks with signal 11 and generates a coredump file:

  * https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits
with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I
configure DMQ with one worker only, which takes me to think that
it's something related to concurrency.

Best regards
-- 
Cumprimentos
José Seabra

_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

José Seabra

23 Mar 23 Mar

10:37 p.m.

Hello Daniel,

Thank you for your support. I have applied your patch and did a few tests successfully.

Stay healthy Best Regards

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia sexta, 20/03/2020 à(s) 18:32:

...

Hello,

can you try with the patch from the next commit?

https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b116...

Cheers, Daniel On 20.03.20 17:16, José Seabra wrote:

Hello Daniel,

Not all the time, but it happens often, I can easily reproduce the issue.

Best Regards José

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia sexta, 20/03/2020 à(s) 16:02:

...
Hello,

does it happen every time or only in some cases? Iirc, there was a similar report for an older version recently, so it might be some old bug not detected yet.

Cheers, Daniel On 20.03.20 16:47, José Seabra wrote:

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up, it breaks with signal 11 and generates a coredump file:

https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I configure DMQ with one worker only, which takes me to think that it's something related to concurrency.

Best regards

Cumprimentos José Seabra

Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

Daniel-Constantin Mierla

24 Mar 24 Mar

8:24 a.m.

Hello,

ok, thanks for testing and feedback, it will be backported.

If you use dialog with dmq, you may want to test also:

* https://github.com/kamailio/kamailio/issues/2224#issuecomment-602730307

Cheers, Daniel

On 23.03.20 23:37, José Seabra wrote:

...

Hello Daniel,

Thank you for your support. I have applied your patch and did a few tests successfully.

Stay healthy Best Regards

Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> escreveu no dia sexta, 20/03/2020 à(s) 18:32:

Hello,

can you try with the patch from the next commit?

  *
https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b1162005d319

Cheers,
Daniel

On 20.03.20 17:16, José Seabra wrote:

...

Hello Daniel,

Not all the time, but it happens often, I can easily reproduce
the issue.

Best Regards
José


Daniel-Constantin Mierla <miconda@gmail.com
<mailto:miconda@gmail.com>> escreveu no dia sexta, 20/03/2020
à(s) 16:02:

    Hello,

    does it happen every time or only in some cases? Iirc, there
    was a similar report for an older version recently, so it
    might be some old bug not detected yet.

    Cheers,
    Daniel

    On 20.03.20 16:47, José Seabra wrote:

...

    Hello there,

    I'm facing an issue with kamailio 5.3.2 when it is starting
    up, it breaks with signal 11 and generates a coredump file:

      * https://pastebin.com/FSqyGFp8

    This seems to be something related to dmq module, kamailio
    exits with signal 11 when it receives a
    DMQ notification_peer message.

    I did a few more tests and I noticed that problem disappears
    if I configure DMQ with one worker only, which takes me to
    think that it's something related to concurrency.

    Best regards
    -- 
    Cumprimentos
    José Seabra

    _______________________________________________
    Kamailio (SER) - Users Mailing List
    sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>
    https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

    -- 
    Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
    www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>



-- 
Cumprimentos
José Seabra

-- 
Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

José Seabra

5:32 p.m.

Hello Daniel, In fact we are using dmq + dialog for dlg profile replication, we haven't noticed yet the issue described on the ticket that you mentioned but it worth apply those patches for sure.

If I detect something wrong regarding to dmq+dialog I will let you know.

Thank you again for your great support.

Best Regards José

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia terça, 24/03/2020 à(s) 08:24:

...

Hello,

ok, thanks for testing and feedback, it will be backported.

If you use dialog with dmq, you may want to test also:

https://github.com/kamailio/kamailio/issues/2224#issuecomment-602730307

Cheers, Daniel On 23.03.20 23:37, José Seabra wrote:

Hello Daniel,

Thank you for your support. I have applied your patch and did a few tests successfully.

Stay healthy Best Regards

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia sexta, 20/03/2020 à(s) 18:32:

...
Hello,

can you try with the patch from the next commit?

https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b116...

Cheers, Daniel On 20.03.20 17:16, José Seabra wrote:

Hello Daniel,

Not all the time, but it happens often, I can easily reproduce the issue.

Best Regards José

Daniel-Constantin Mierla miconda@gmail.com escreveu no dia sexta, 20/03/2020 à(s) 16:02:

...
Hello,

does it happen every time or only in some cases? Iirc, there was a similar report for an older version recently, so it might be some old bug not detected yet.

Cheers, Daniel On 20.03.20 16:47, José Seabra wrote:

Hello there,

I'm facing an issue with kamailio 5.3.2 when it is starting up, it breaks with signal 11 and generates a coredump file:

https://pastebin.com/FSqyGFp8

This seems to be something related to dmq module, kamailio exits with signal 11 when it receives a DMQ notification_peer message.

I did a few more tests and I noticed that problem disappears if I configure DMQ with one worker only, which takes me to think that it's something related to concurrency.

Best regards

Cumprimentos José Seabra

Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda

-- Cumprimentos José Seabra

Daniel-Constantin Mierla

25 Mar 25 Mar

1:32 p.m.

Hello,

that seems to be an issue exposed in a rare situation, like a quick retransmission of the same dmq command, which can result in processing the same dmq command in parallel by two worker processes. That was what I got to understand after analyzing the bug report...

Cheers, Daniel

On 24.03.20 18:32, José Seabra wrote:

...

Hello Daniel, In fact we are using dmq + dialog for dlg profile replication, we haven't noticed yet the issue described on the ticket that you mentioned but it worth apply those patches for sure.

If I detect something wrong regarding to dmq+dialog I will let you know.

Thank you again for your great support.

Best Regards José

Daniel-Constantin Mierla <miconda@gmail.com mailto:miconda@gmail.com> escreveu no dia terça, 24/03/2020 à(s) 08:24:

Hello,

ok, thanks for testing and feedback, it will be backported.

If you use dialog with dmq, you may want to test also:

  *
https://github.com/kamailio/kamailio/issues/2224#issuecomment-602730307

Cheers,
Daniel

On 23.03.20 23:37, José Seabra wrote:

...

Hello Daniel,

Thank you for your support.
I have applied your patch and did a few tests successfully.

Stay healthy
Best Regards


Daniel-Constantin Mierla <miconda@gmail.com
<mailto:miconda@gmail.com>> escreveu no dia sexta, 20/03/2020
à(s) 18:32:

    Hello,

    can you try with the patch from the next commit?

      *
    https://github.com/kamailio/kamailio/commit/21bdbff049571ca22f1205a041c8b1162005d319

    Cheers,
    Daniel

    On 20.03.20 17:16, José Seabra wrote:

...

    Hello Daniel,

    Not all the time, but it happens often, I can easily
    reproduce the issue.

    Best Regards
    José


    Daniel-Constantin Mierla <miconda@gmail.com
    <mailto:miconda@gmail.com>> escreveu no dia sexta,
    20/03/2020 à(s) 16:02:

        Hello,

        does it happen every time or only in some cases? Iirc,
        there was a similar report for an older version
        recently, so it might be some old bug not detected yet.

        Cheers,
        Daniel

        On 20.03.20 16:47, José Seabra wrote:

...

        Hello there,

        I'm facing an issue with kamailio 5.3.2 when it is
        starting up, it breaks with signal 11 and generates a
        coredump file:

          * https://pastebin.com/FSqyGFp8

        This seems to be something related to dmq module,
        kamailio exits with signal 11 when it receives a
        DMQ notification_peer message.

        I did a few more tests and I noticed that problem
        disappears if I configure DMQ with one worker only,
        which takes me to think that it's something related to
        concurrency.

        Best regards
        -- 
        Cumprimentos
        José Seabra

        _______________________________________________
        Kamailio (SER) - Users Mailing List
        sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>
        https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

        -- 
        Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
        www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>



    -- 
    Cumprimentos
    José Seabra

    -- 
    Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
    www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>



-- 
Cumprimentos
José Seabra

-- 
Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>

-- Cumprimentos José Seabra

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

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Daniel-Constantin Mierla
José Seabra