[Asterisk-Users] Hung IAX Channels

[Rich Adamson]

Jonathan k. Creasy wrote:
> I have a problem where my Asterisk server stops answering new TCP
> requests and begins to use 99.9% of the CPU on my box. The server is a
> 64bit Xeon with 2GB of ram. 
> 
> I haven't been able to recreate the problem but it occurs sometimes when
> there is a call coming from my provider (via IAX) to a customer (via
> IAX). The customer and the provider systems are running asterisk also.
> The call will end and the provider and the client's systems will show
> that it has ended (confirming with show channels). On my server however,
> it is still showing the active channels. 
> 
> This happened about once a week and since upgrading to 1.2.5 this
> morning from 1.2.4 it has happened twice. 
> 
> 
> Does anyone know what is happening here? 

The most common cause for 99% cpu usage is from mpg123 (music on hold).
Have you checked your system using top to see exactly what is sucking up 
the cpu?