[SR-Users] kamailio 4.4.5 Crash

Daniel-Constantin Mierla miconda at gmail.com
Mon Dec 18 14:00:32 CET 2017


Hello,

are you monitoring memory usage?

kamctl stats shmem

Is it increasing over the time?

Cheers,
Daniel


On 15.12.17 16:16, Andrew Paul wrote:
> Hi Daniel,
>
> We were running the kamailio without any issue after changing the
> shared memory to 1024. We dont have any issue on last two months. 
>
> But today we got the issue and we are not able to connect new tls
> connections. 
>
> Dec 15 08:13:56 webrtc /usr/sbin/kamailio[19550]: ERROR: tls
> [tls_server.c:190]: tls_complete_init(): tls: ssl bug #1491
> workaround: not enough memory for safe operation: shm=9886536
> threshold1=9961472
> Dec 15 08:13:56 webrtc /usr/sbin/kamailio[19550]: ERROR: <core>
> [tcp_read.c:1321]: tcp_read_req(): ERROR: tcp_read_req: error reading
> - c: 0x7f642bb1c668 r: 0x7f642bb1c6e8
> Dec 15 08:13:56 webrtc /usr/sbin/kamailio[19550]: ERROR: tls
> [tls_server.c:190]: tls_complete_init(): tls: ssl bug #1491
> workaround: not enough memory for safe operation: shm=9886536
> threshold1=9961472
> Dec 15 08:13:56 webrtc /usr/sbin/kamailio[19550]: ERROR: <core>
> [tcp_read.c:1321]: tcp_read_req(): ERROR: tcp_read_req: error reading
> - c: 0x7f642bb1c668 r: 0x7f642bb1c6e8
>
> There is no crash, it is only low memory and new connections not
> occuring. 
>
> Can you suggest what can be the resolution here ?. Do we need a
> process restart to free up the memory resource ?. 
>
> Regards
>
> Varghese Paul 
>
> On Wed, Oct 11, 2017 at 2:28 PM, Sergey Safarov <s.safarov at gmail.com
> <mailto:s.safarov at gmail.com>> wrote:
>
>     Hello Daniel
>     Could you look this ticket with attached backtrace
>     https://2600hz.atlassian.net/browse/KAZOO-5699
>     <https://2600hz.atlassian.net/browse/KAZOO-5699>
>
>     I not sure where is root of issue. May be your comment clean this.
>
>
>
>     ср, 11 окт. 2017 г. в 10:43, Daniel-Constantin Mierla
>     <miconda at gmail.com <mailto:miconda at gmail.com>>:
>
>         Still curious if you got a core file so far (or it was just
>         those error messages) and if yes, it would be good to get the
>         backtrace.
>
>         Cheers,
>         Daniel
>
>
>         On 11.10.17 05:27, Andrew Paul wrote:
>>         Thanks Daniel. We have increase shm memory to 1024 from 64
>>         and private memory to 64 from 8MB.
>>
>>         We will closely monitor and will update the thread if
>>         encounter any issue.
>>
>>         Regards
>>
>>         Varghese Paul 
>>
>>         On Tue, Oct 10, 2017 at 10:04 PM, Daniel-Constantin Mierla
>>         <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>>             Hello,
>>
>>             these errors do not indicate a crash, but unability to
>>             read due to low available memory. Did you get a crash
>>             (kamailio stopped)? If yes, any core file from where you
>>             can extract the backtrace?
>>
>>             Anyhow, as hint, if you use a lot of tls, increase the
>>             size for shared memory, it is needed a lot there.
>>
>>             Cheers,
>>             Daniel
>>
>>
>>             On 10.10.17 16:32, Andrew Paul wrote:
>>>             Hi all,
>>>
>>>             We were using kamailio 4.4.5 and we enabled only for webrtc.
>>>
>>>             We were observing two memory crashed in last two weeks. 
>>>
>>>             Oct 10 01:03:03 webrtc /usr/sbin/kamailio[18002]: ERROR:
>>>             <core> [tcp_read.c:1321]: tcp_read_req(): ERROR:
>>>             tcp_read_req: error reading - c: 0x7f21ea8f6198 r:
>>>             0x7f21ea8f6218
>>>             Oct 10 01:03:04 webrtc /usr/sbin/kamailio[18003]: ERROR:
>>>             tls [tls_server.c:190]: tls_complete_init(): tls: ssl
>>>             bug #1491 workaround: not enough memory for safe
>>>             operation: shm=9926856 threshold1=9961472
>>>             Oct 10 01:03:04 webrtc /usr/sbin/kamailio[18003]: ERROR:
>>>             <core> [tcp_read.c:1321]: tcp_read_req(): ERROR:
>>>             tcp_read_req: error reading - c: 0x7f21ea8f6198 r:
>>>             0x7f21ea8f6218
>>>             Oct 10 01:03:05 webrtc /usr/sbin/kamailio[18004]: ERROR:
>>>             tls [tls_server.c:190]: tls_complete_init(): tls: ssl
>>>             bug #1491 workaround: not enough memory for safe
>>>             operation: shm=9926856 threshold1=9961472
>>>             Oct 10 01:03:05 webrtc /usr/sbin/kamailio[18004]: ERROR:
>>>             <core> [tcp_read.c:1321]: tcp_read_req(): ERROR:
>>>             tcp_read_req: error reading - c: 0x7f21ea8f6198 r:
>>>             0x7f21ea8f6218
>>>
>>>
>>>             Is there any known issue for tls module in
>>>             kamailio_4.4.5 ?. We are using default 64MB for shared
>>>             memory and 8MB for private memory. Do we need to
>>>             increase this ?.
>>>
>>>             Regards
>>>
>>>             Andrew
>>>
>>>
>>>             _______________________________________________
>>>             Kamailio (SER) - Users Mailing List
>>>             sr-users at lists.kamailio.org
>>>             <mailto:sr-users at lists.kamailio.org>
>>>             https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>             <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>>
>>             -- 
>>             Daniel-Constantin Mierla
>>             www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda
>>             <http://www.linkedin.com/in/miconda>
>>             Kamailio Advanced Training - www.asipto.com <http://www.asipto.com>
>>             Kamailio World Conference - www.kamailioworld.com <http://www.kamailioworld.com>
>>
>>
>
>         -- 
>         Daniel-Constantin Mierla
>         www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>         Kamailio Advanced Training - www.asipto.com <http://www.asipto.com>
>         Kamailio World Conference - www.kamailioworld.com <http://www.kamailioworld.com>
>
>         _______________________________________________
>         Kamailio (SER) - Users Mailing List
>         sr-users at lists.kamailio.org <mailto:sr-users at lists.kamailio.org>
>         https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>         <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users>
>
>

-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com

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