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

Thu Dec 1 20:01:38 MSK 2016

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
> <mailto: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
>     <mailto: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
>     <mailto: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 GmbH
>     mailto:lists (att) telefaks.de <http://telefaks.de>
>     Internet: www.telefaks.de <http://www.telefaks.de>
>
>
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>
> -- 
>
> */Brian West/*
> brian at freeswitch.org <mailto:brian at freeswitch.org>
>
>
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>
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>
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-- 
With kind regards
Peter Steinbach 

Telefaks Services GmbH
mailto:lists (att) telefaks.de
Internet: www.telefaks.de

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