[asterisk-bugs] [Asterisk 0018200]: chan_sip hangs

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=18200 
====================================================================== 
Reported By:                DennisD
Assigned To:                bbryant
====================================================================== 
Project:                    Asterisk
Issue ID:                   18200
Category:                   Channels/chan_sip/General
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     closed
Asterisk Version:           1.8.0 
JIRA:                       SWP-2479 
Regression:                 Yes 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 fixed
Fixed in Version:           
====================================================================== 
Date Submitted:             2010-10-23 15:25 CDT
Last Modified:              2010-11-05 17:17 CDT
====================================================================== 
Summary:                    chan_sip hangs
Description: 
SIP hangs. I'm only using SIP phones (including a Grandstream GXW4008 for
FXS ports).

The phone stop registering and the existing calls quit working
(directmedia=no).

I threw together a quick Perl script to catch it (I've attached it).  I
just check some SIP registrations and that they say we're still registered
and we've gone past our timeout by 120 seconds.  This seems to catch it
every time.

I had written this script while trying to debug this in 1.6<something>,
but 1.6.2.x has worked just fine for many months with the same config
files, so it was fixed there at some point.
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
duplicate of        0017949 [patch] Mutex 'dialog' freed more times...
====================================================================== 

---------------------------------------------------------------------- 
 (0128673) svnbot (reporter) - 2010-11-05 17:17
 https://issues.asterisk.org/view.php?id=18200#c128673 
---------------------------------------------------------------------- 
Repository: asterisk
Revision: 294086

_U  trunk/
U   trunk/channels/chan_sip.c

------------------------------------------------------------------------
r294086 | bbryant | 2010-11-05 17:17:22 -0500 (Fri, 05 Nov 2010) | 16
lines

Merged revisions 294084 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r294084 | bbryant | 2010-11-05 18:03:11 -0400 (Fri, 05 Nov 2010) | 9
lines
  
  Fixed deadlock avoidance issues while locking channel when adding the
  Max-Forwards header to a request.
  
  (closes issue https://issues.asterisk.org/view.php?id=17949)
  (closes issue https://issues.asterisk.org/view.php?id=18200)
  Reported by: bwg
  
  Review: https://reviewboard.asterisk.org/r/997/
........

------------------------------------------------------------------------

http://svn.digium.com/view/asterisk?view=rev&revision=294086 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-11-05 17:17 svnbot         Checkin                                      
2010-11-05 17:17 svnbot         Note Added: 0128673                          
======================================================================