[asterisk-bugs] [Asterisk 0018842]: random deadlocks - SIP messages not being processed

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18842 
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Reported By:                usinternet
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18842
Category:                   PBX/General
Reproducibility:            random
Severity:                   block
Priority:                   normal
Status:                     new
Asterisk Version:           1.8.2.3 
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:             2011-02-18 15:28 CST
Last Modified:              2011-02-21 11:04 CST
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Summary:                    random deadlocks - SIP messages not being processed
Description: 
Just upgraded to Asterisk 1.8.2 for production and we're getting random
deadlocks.  When this happens, it looks like Asterisk is not able to
process new SIP messages.  Any INVITEs or REGISTERs that arrive are not
being outputted to the console or logs.

This seems to happen randomly.  I have not been able to reproduce it at
will although it does happen about 5-10 times per day.  The server is
handling about 2000 calls/day, so it's not really that busy.  There are
about 75 phones connected to the server.

Please see attached backtrace and lock output for more information.  It
shows the deadlocks but I'm not sure which is the root issue here.
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 (0132251) luckman212 (reporter) - 2011-02-21 11:04
 https://issues.asterisk.org/view.php?id=18842#c132251 
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Hmm ok, I'm using acpi_pm on my particular box, so I guess it's probably
not related to the 'clocksource' -- but I do believe it is possibly a bug
in pthreads.  I am in the process of swapping some things around to try to
eliminate pthreads completely & just use dahdi timing as a test.  

But I believe this completely KILLS music on hold, at least on 1.8.x 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-21 11:04 luckman212     Note Added: 0132251                          
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