[asterisk-bugs] [Asterisk 0018403]: Deadlock on SIP blind transfer (REFER)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=18403 
====================================================================== 
Reported By:                jthurman
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   18403
Category:                   Channels/chan_sip/Transfers
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): 1.8 
SVN Revision (number only!): 296824 
Request Review:              
====================================================================== 
Date Submitted:             2010-11-30 18:25 CST
Last Modified:              2010-12-01 10:36 CST
====================================================================== 
Summary:                    Deadlock on SIP blind transfer (REFER)
Description: 
All SIP:
- A calls B
- B blind-transfers A to C (Using REFER)
- Asterisk stops responding to SIP requests (Deadlocked)

====================================================================== 

---------------------------------------------------------------------- 
 (0129237) jthurman (reporter) - 2010-12-01 10:36
 https://issues.asterisk.org/view.php?id=18403#c129237 
---------------------------------------------------------------------- 
I didn't have time last night to create the backtrace, but it is uploaded
now.

I can reproduce this every time using two Polycom 331s and a Cisco 7941. 
The role of the phones (A, B, or C) does not matter.

ODBC Realtime is used for Extensions and SIP Accounts
(rtcachefriends=yes).  The configuration/database was copied from our
production 1.6.2.13 server.

CentOS 5.5 64-bit. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-12-01 10:36 jthurman       Note Added: 0129237                          
======================================================================