[sr-dev] Kamailio 5.1 nightly (rc2) crashing - udp_rcv_loop(): print buffer building failed

[George Diamantopoulos]

I know it sounds scary, but unfortunately I haven't been able to reproduce
the issue since I did a clean installation. I'll definitely post again if
it somehow manifests...

BR,
George

On 4 December 2017 at 11:00, Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> I pushed a patch few days ago related to this report, if you still get the
> issue, better open an issue on bug tracker -- it is safer not to forget
> about it.
>
> Cheers,
> Daniel
>
> On 30.11.17 20:04, Daniel-Constantin Mierla wrote:
>
> Hello,
>
> did you run with debug=3 in kamailio.cfg? That piece of code is new in
> 5.1, but executed only when debug is at least 3 (which is for
> troubleshooting purposes, not for production). Anyhow, I will check a bit
> that part to see if anything is wrong there...
>
> Cheers,
> Daniel
>
> On 30.11.17 18:52, George Diamantopoulos wrote:
>
> OK, so I performed a clean installation on a new debian stretch instance I
> haven't been able to reproduce the issue so far. Either something changed
> in the latest nightly, or the fact that I upgraded from 5.0.4 was causing
> the issue.
>
> The deployment is automated with ansible, so there shouldn't be any
> deviations in the configuration of the host. Only other difference (apart
> from the clean kamailio install) should be rtpengine's building, which was
> performed anew. However, I don't see how that might have affected things
> (after all, I don't believe kamailio is a build time dependency for
> rtpengine)...
>
> On 30 November 2017 at 01:08, George Diamantopoulos <georgediam at gmail.com>
> wrote:
>
>> Oh, I also tried with 5.2.0-dev1 nightly and it also crashes in the same
>> way...
>>
>> On 30 November 2017 at 01:07, George Diamantopoulos <georgediam at gmail.com
>> > wrote:
>>
>>> I've been trying to get a core dump on this for hours now, but I just
>>> can't get one! Is there anything special needed with this build on debian
>>> stretch? Checked ulimits, disable_core_dump, /etc/default/kamailio, started
>>> it as root (-u root -g root), from systemd with user kamailio, with working
>>> directory set in command line and in config file, I just can't get a core
>>> dump...
>>>
>>> Thanks
>>>
>>> On 29 November 2017 at 18:10, George Diamantopoulos <
>>> georgediam at gmail.com> wrote:
>>>
>>>> Hello,
>>>>
>>>> I've just installed kamailio 5.1 nightly from the debian repo for
>>>> stretch. I didn't change anything in the configuration compared to 5.0.4
>>>> (which I was testing previously), apart from the database structure as
>>>> found in the wiki for upgrading from 5.0.x.
>>>>
>>>> Now kamailio crashes after a while, with the following output in the
>>>> logs:
>>>>
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]:  3(2502) ERROR: <core>
>>>> [core/udp_server.c:481]: udp_rcv_loop(): print buffer building failed
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]: 121(2620) CRITICAL:
>>>> <core> [core/pass_fd.c:277]: receive_fd(): EOF on 26
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]: 121(2620) DEBUG: <core>
>>>> [core/tcp_main.c:3512]: handle_ser_child(): dead child 3, pid 2502
>>>> (shutting down?)
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]: 121(2620) DEBUG: <core>
>>>> [core/io_wait.h:602]: io_watch_del(): DBG: io_watch_del (0x55ae7132ffc0,
>>>> 26, -1, 0x0) fd_no=126 called
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]:  0(2499) ALERT: <core>
>>>> [main.c:741]: handle_sigs(): child process 2502 exited normally, status=255
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]:  0(2499) INFO: <core>
>>>> [main.c:771]: handle_sigs(): terminating due to SIGCHLD
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]:  0(2499) DEBUG: <core>
>>>> [main.c:773]: handle_sigs(): terminating due to SIGCHLD
>>>> Nov 29 15:47:05 modcom-sbc-dev1 kamailio[2497]: 118(2617) INFO: <core>
>>>> [main.c:826]: sig_usr(): signal 15 received
>>>>
>>>> Let me know if I can somehow help dissect this issue, I don't really
>>>> know where to start. Thanks.
>>>>
>>>> BR,
>>>> George
>>>>
>>>
>>>
>>
>
>
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>
>
> --
> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - www.asipto.com
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com
>
>
> --
> Daniel-Constantin Mierlawww.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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