[asterisk-bugs] [Asterisk 0018310]: [patch] hint state changes deadlock/race

Asterisk Bug Tracker noreply at bugs.digium.com
Thu Jan 6 00:14:03 UTC 2011


A NOTE has been added to this issue. 
====================================================================== 
https://issues.asterisk.org/view.php?id=18310 
====================================================================== 
Reported By:                one47
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   18310
Category:                   Core/PBX
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           1.6.2.14 
JIRA:                       SWP-2541 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2010-11-15 12:19 CST
Last Modified:              2011-01-05 18:14 CST
====================================================================== 
Summary:                    [patch] hint state changes deadlock/race
Description: 
VERY similar to https://issues.asterisk.org/view.php?id=18165, but this is a
different deadlock path, so I have
raised a separate report.

Thread 1: taskprocessor  -> handle_statechange
    Lock order = conlock, hints, hint, pvt
Thread 2: chan_sip.c:  handle_request_do -> handle_response_notify
    Lock order = pvt, conlock

Thread2 only gets into the conlock if STATECHANGEQUEUE is true, ie. there
are rapid state changes happening on a subscribed hint.
======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0018165 [patch] hint state changes deadlock pro...
has duplicate       0018535 app_queue deadlocks if weight is set
====================================================================== 

---------------------------------------------------------------------- 
 (0130238) jpeeler (administrator) - 2011-01-05 18:14
 https://issues.asterisk.org/view.php?id=18310#c130238 
---------------------------------------------------------------------- 
I've done as schmidts suggested and converted the callbacks to be ao2
objects. If anybody could test the ao2 patch I posted that would be great. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2011-01-05 18:14 jpeeler        Note Added: 0130238                          
======================================================================




More information about the asterisk-bugs mailing list