[Freeswitch-users] T.38 RTP Poll failed with error: 9 [Bad file descriptor]

Thu Dec 1 20:27:14 MSK 2016

Has nothing to do with the port range, that problem was related
specifically to T.38 endpoints who were using RTCP before they changed to
UDPTL.

On Thu, Dec 1, 2016 at 11:19 AM, Brian West <brian at freeswitch.org> wrote:

> You'll want 1.6.13 or master, this bug was a pain in the butt to find and
> fix.
>
> /b
>
> On Thu, Dec 1, 2016 at 11:01 AM, Peter Steinbach <lists at telefaks.de>
> wrote:
>
>> Thanks,
>>
>> by the way, we found out in further testing, when setting RTP ports to
>> 65000+, this error went away.
>>
>> But anyway, we will have to update/recompile Freeswitch.
>>
>>
>>
>> Best regards
>> Peter
>>
>> On 12/01/16 17:21, Brian West wrote:
>>
>> You're on an older release, we've fixed this already.
>>
>> /b
>>
>>
>> On Thu, Dec 1, 2016 at 8:48 AM, Peter Steinbach <lists at telefaks.de>
>> wrote:
>>
>>> Hello,
>>>
>>> I have a strange error when proyy-media T38 faxes.
>>> Freeswitch is behind NAT (internal 192.168.12.248, external
>>> 5.10.xxx.yyy), other, receiving Server is also a Freeswitch
>>>
>>> A connection is made via G.711A, we hear the machines negociating, then
>>> we receive a T.38 reinvite from the remote Freeswitch server.
>>> The local ATA 30@ reponds with T38 SDP, Freeswitch is passing it to the
>>> remote site (and there the error occurs). See error in bold:
>>>
>>> 2016-12-01 15:28:55.534228 [DEBUG] sofia.c:6937 Channel
>>> sofia/internal/30 at 192.168.12.248 entering state [completing][200]
>>> 2016-12-01 15:28:55.534228 [DEBUG] sofia.c:6944 Duplicate SDP
>>> v=0
>>> o=30 8002 8001 IN IP4 192.168.12.99
>>> s=SIP Call
>>> c=IN IP4 192.168.12.99
>>> t=0 0
>>> m=image 5012 udptl t38
>>> a=T38FaxVersion:0
>>> a=T38MaxBitRate:14400
>>> a=T38FaxRateManagement:transferredTCF
>>> a=T38FaxMaxBuffer:500
>>> a=T38FaxMaxDatagram:500
>>> a=T38FaxUdpEC:t38UDPRedundancy
>>>
>>> 2016-12-01 15:28:55.534228 [DEBUG] sofia.c:6937 Channel
>>> sofia/internal/30 at 192.168.12.248 entering state [ready][200]
>>> 2016-12-01 15:28:55.554501 [DEBUG] mod_sofia.c:2088 Responding with 200
>>> [OK]
>>> 2016-12-01 15:28:55.554501 [DEBUG] switch_core_media.c:8955
>>> sofia/external/0403801xxxxxxx image media sdp:
>>> v=0
>>> o=FreeSWITCH 1480572959 1480572961 IN IP4 5.10.xxx.yyy
>>> s=FreeSWITCH
>>> c=IN IP4 5.10.xxx.yyy
>>> t=0 0
>>> m=image 29544 udptl t38
>>> a=T38FaxVersion:0
>>> a=T38MaxBitRate:14400
>>> a=T38FaxRateManagement:transferredTCF
>>> a=T38FaxMaxBuffer:500
>>> a=T38FaxMaxDatagram:500
>>> a=T38FaxUdpEC:t38UDPRedundancy
>>>
>>> *2016-12-01 15:28:55.554501 [ERR] switch_rtp.c:6420 Poll failed with
>>> error: 9 [Bad file descriptor]*
>>> 2016-12-01 15:28:55.554501 [DEBUG] switch_ivr_bridge.c:712
>>> sofia/external/0403801xxxxxxx ending bridge by request from read function
>>> 2016-12-01 15:28:55.554501 [DEBUG] switch_ivr_bridge.c:785 BRIDGE THREAD
>>> DONE [sofia/external/0403801xxxxxxx]
>>> 2016-12-01 15:28:55.554501 [NOTICE] switch_ivr_bridge.c:889 Hangup
>>> sofia/external/0403801xxxxxxx [CS_EXCHANGE_MEDIA] [NORMAL_CLEAR
>>>
>>> Some background Info:
>>>
>>>    - Freeswitch runs in LXC environment
>>>    - Freeswitch runs as non-priviledged user.
>>>
>>> What is the cause of this? Maybe a problem with port 29544? But port
>>> 29544 was already previously used with G.711A.
>>>
>>> --
>>> With kind regards
>>> Peter Steinbach
>>>
>>> Telefaks Services GmbHmailto:lists <lists> (att) telefaks.de
>>> Internet: www.telefaks.de
>>>
>>>
>>> ____________________________________________________________
>>> _____________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>
>>
>>
>> --
>>
>> *Brian West*
>> brian at freeswitch.org
>>
>>
>> *Twitter: @FreeSWITCH , @briankwest*
>> http://www.freeswitchbook.com (50% Discount using code FreeSwitch50)
>> http://www.freeswitchcookbook.com (50% Discount using code FreeSwitch50)
>> https://www.gofundme.com/freeswitch_ubuntu
>>
>> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
>> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>>
>> *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378)
>> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services: consulting at freeswitch.orghttp://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://confluence.freeswitch.orghttp://www.cluecon.com
>>
>> FreeSWITCH-users mailing listFreeSWITCH-users at lists.freeswitch.orghttp://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-usershttp://www.freeswitch.org
>>
>>
>>
>> --
>> With kind regards
>> Peter Steinbach
>>
>> Telefaks Services GmbHmailto:lists <lists> (att) telefaks.de
>> Internet: www.telefaks.de
>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
>
> --
>
> *Brian West*
> brian at freeswitch.org
>
>
> *Twitter: @FreeSWITCH , @briankwest*
> http://www.freeswitchbook.com (50% Discount using code FreeSwitch50)
> http://www.freeswitchcookbook.com (50% Discount using code FreeSwitch50)
> https://www.gofundme.com/freeswitch_ubuntu
>
> Got Bugs? Report them here <https://freeswitch.org/jira>! | Reddit:
> /r/freeswitch <https://www.reddit.com/r/freeswitch>
>
> *T:*+19184209001 <(918)%20420-9001> | *F:*+19184209002 <(918)%20420-9002>
> | *M:*+1918424WEST (9378)
> *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>

-- 
Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬

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