[asterisk-users] Impossible to use any recent asterisk version with chan_sip

Barry Flanagan barryf-lists at flanagan.ie
Wed Jul 6 10:18:20 CDT 2016

On 6 July 2016 at 16:14, Joshua Colp <jcolp at digium.com> wrote:

> Leandro Dardini wrote:
>> Hello,
>> I'd like to know if anyone of you is finding my same problems using any
>> recent asterisk version, after 13.7 / 13.8  with chan_sip.
>> If I use any recent asterisk version, after just few seconds asterisk
>> completely locks up, stopping processing SIP/UDP packets. Nothing is
>> written in the asterisk log, but if I run "netstat -nap | grep 5060" I
>> see the UDP buffer filled up.
>> If I step back to asterisk 13.2, then all is fine and asterisk is rock
>> solid.
>> I know I should use PJSIP and chan_sip is no more supported, but at this
>> point, if this is the working state of chan_sip, it should be completely
>> removed.
> It's not the normal working state of chan_sip, in fact it hasn't really
> been touched in any way that would cause this to happen and I haven't seen
> any bug reports along these lines. I also know that FreePBX is running both
> chan_sip and chan_pjsip and haven't experienced anything so it may be
> isolated to you. If you follow the instructions on the wiki[1] it will
> provide a backtrace which will show where chan_sip is hanging.

This was actually reported in
https://issues.asterisk.org/jira/browse/ASTERISK-25468 with backtraces. It
appeared to have started in 13.5, as I tested all from 13.2 to 13.6 at the

Hope this helps.

-Barry Flanagan

> --
> Joshua Colp
> Digium, Inc. | Senior Software Developer
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - US
> Check us out at: www.digium.com & www.asterisk.org
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