[asterisk-users] Zombie DAHDI FXO channels

Andrew Latham lathama at gmail.com
Fri Dec 24 12:07:44 UTC 2010


>> Dear listers,
>>
>> I'm facing a puzzling situation with Digium TDM2400 card (12 FXO / 12
>> FXS). Once a day or so we detect 1 or 2 zombie FXO channels. These can be
>> either outbound or inbound calls. I thought this could be related to
>> obsolete DAHDI or Asterisk versions, so I upgraded to 2.4.0 and 1.6.2.15
>> respectively (OS: Ubuntu 10.04 64 bits). To no avail; the zombie channels
>> keep showing up.
>> Those zombies appear to be hangup calls not being recognized as such by
>> DAHDI. When we see existing calls with suspicious long durations (20 minutes
>> or more) we spy those channels, and pretty often they show no audio at all.
>> Following are a few logs:
>>
>> inbound call ending up as zombie: http://pastebin.com/NtS8CiMa
>> outbound call ending up as zombie: http://pastebin.com/nfY707Ap, you can
>> see that starting at line 145 the channel is being hanged up on the console
>> (hangup request DAHDI/x-y)
>>
>> Any ideas?
>> Alex Saavedra

One Idea: http://www.digium.com/en/supportcenter/

~~~ Andrew "lathama" Latham lathama at gmail.com ~~~



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