[asterisk-bugs] [Asterisk 0018403]: [patch] 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:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-2667 
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:              2010-12-23 12:50 CST
====================================================================== 
Summary:                    [patch] 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)

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

---------------------------------------------------------------------- 
 (0129926) jthurman (reporter) - 2010-12-23 12:50
 https://issues.asterisk.org/view.php?id=18403#c129926 
---------------------------------------------------------------------- 
kkm: Yes, I am still getting a deadlock randomly in find_call, same as the
one you posted.  While it is related, that deadlock is happening in code
that didn't change and before the changed code is executed.  Reverting the
patch causes the deadlock for me everytime, so it seems to be in the right
direction but not a complete fix yet. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-12-23 12:50 jthurman       Note Added: 0129926                          
======================================================================