[asterisk-bugs] [Asterisk 0016811]: Heavy locking in manager.c results in eventual crash and loss of CLI commands and intense CPU load

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
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https://issues.asterisk.org/view.php?id=16811 
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Reported By:                aragon
Assigned To:                qwell
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Project:                    Asterisk
Issue ID:                   16811
Category:                   Core/ManagerInterface
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     closed
Target Version:             1.4.38
Asterisk Version:           SVN 
JIRA:                       SWP-899 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 unable to reproduce
Fixed in Version:           
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Date Submitted:             2010-02-11 08:29 CST
Last Modified:              2010-10-04 13:43 CDT
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Summary:                    Heavy locking in manager.c results in eventual crash
and loss of CLI commands and intense CPU load
Description: 
We run some scripts connecting to Asterisk AMI to display realtime Asterisk
statistics.  When our AMI stuff is connected to Asterisk versions 1.4.25 to
1.4.30rc2 there is heavy duty locking and CPU load spiking which will
degrade voice quality, kill the Asterisk CLI commands like core show locks,
core show channels etc... and I have seen the load in HTOP reach 300 until
Asterisk is forcibly restarted. Asterisk 1.4.24 is not effected so we don't
think it is our scripts...

Core show locks and gdb asterisk --pid=`pidof asterisk` 'thread apply all
bt' is attached as txt files
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Relationships       ID      Summary
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related to          0016754 [patch] Multiple segfaults in leave_voi...
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 (0127674) qwell (administrator) - 2010-10-04 13:43
 https://issues.asterisk.org/view.php?id=16811#c127674 
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Closing per reporter. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-10-04 13:43 qwell          Note Added: 0127674                          
2010-10-04 13:43 qwell          Status                   feedback => resolved
2010-10-04 13:43 qwell          Resolution               open => unable to
reproduce
2010-10-04 13:43 qwell          Status                   resolved => closed  
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