[asterisk-bugs] [Asterisk 0018441]: Deadlock after failed SIP fax call

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18441 
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Reported By:                Alric
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18441
Category:                   Core/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.8.1 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-12-08 17:10 CST
Last Modified:              2010-12-10 04:29 CST
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Summary:                    Deadlock after failed SIP fax call
Description: 
I've been testing T.38 with my SIP provider using a Linksys ATA and a fax
machine behind it.

I initiate the fax with my fax machine and it connects with the other end.
 Shortly after the fax machine thinks the call disconnects.  If I type a
'core show channels' at this point, I don't see any active channels.  At
this point the PBX does not accept any more calls.  Commands also seem to
not go through on the CLI until I 'exit' and 'asterisk -vvvvvr' again.

Asterisk is compiled with DONT_OPTIMIZE and DEBUG_THREADS.  I have run
this scenario 3 to 5 times now with the same result so I am faithful I can
reproduce it as needed.

Attached is the output from 'core show locks' after the presumed deadlock.
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 (0129526) viniciusfontes (reporter) - 2010-12-10 04:29
 https://issues.asterisk.org/view.php?id=18441#c129526 
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I'm having similar problems with deadlocks but I don't think fax is
involved. Posting here because I'm almost sure it's the same bug.

Attached is the output of core show locks on my system. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-12-10 04:29 viniciusfontes Note Added: 0129526                          
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