[asterisk-users] Zombie DAHDI FXO channels

[Alex Saavedra]

ping...

Alex Saavedra



On Thu, Dec 23, 2010 at 5:07 PM, Alex Saavedra <alxsvdr at gmail.com> wrote:

> 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
>
>
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