[asterisk-dev] IAX2 Deadlock - Dropped Calls?

[Tilghman Lesher]

On Saturday 27 January 2007 06:37, Gregory Boehnlein wrote:
> 	We began experiencing an issue yesterday whereby one of our TDM
> gateways, which handles IAX2 <-> Zap handoffs was dropping calls. The box
> in question has 18 IAX2 peers defined, never has more than about 30
> concurrent calls and runs under what I consider a very light load. It does
> very light transcoding (maybe 2-3 channels of 726 to Ulaw). We are running
> SVN-branch-1.2-r51359 as of this morning on the box. I do not know what the
> previous build was, but it couldn't be more than a month old. I may be able
> to get that data if it is critical.

It's critical.  There doesn't appear to be any commit within the last month
which alters the handling of that lock.  I can go back further, but I'd like
to have an endpoint of where to stop looking.

> [root at tdm-1 asterisk]# grep -c "Avoiding IAX destroy deadlock" messages
> 47587
>
> That is a lot of messages.. All the call drop complaints coincide with the
> timing of that message in our log files for the day.

-- 
Tilghman