[asterisk-bugs] [Asterisk 0018816]: Asterisk Hangs/ CPU Usages goes up to 500%

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18816 
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Reported By:                vois
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18816
Category:                   General
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     feedback
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:             2011-02-15 11:09 CST
Last Modified:              2011-02-17 14:02 CST
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Summary:                    Asterisk Hangs/ CPU Usages goes up to 500%
Description: 
Asterisk 1.8.2 goes down, i am unable to stop from CLI. i have to kill PID.
I enabled don't optimize and dead locks for tarce and now what i see is
asterisk is consuming 500% of CPU. Once CPU usage goes above 300%, asterisk
start losing peers, peer lags ( Peer 'peername' is now Lagged) and after
few mins peers come reachable (Peer 'peername' is now Reachable). I have
attached the core show locks and back trace when CPU usage was very
high(300% or more). Total 850 peers, 80% are TLS. I tired 1.8.2 and
1.8.2.3, getting same issues with both. 
Linux Dist: Ubuntu 2.6.32-21-server.
Linux VOIS8P 2.6.32-21-server https://issues.asterisk.org/view.php?id=32-Ubuntu
SMP Fri Apr 16 09:17:34 UTC 2010
x86_64 GNU/Linux

I have attached the core dead locks and backtrace. I same exactly same
server running asterisk 1.4.37 with 1500 peers. 
 
Thanks in advance.


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 (0132100) loloski (reporter) - 2011-02-17 14:02
 https://issues.asterisk.org/view.php?id=18816#c132100 
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vois,

How about installing a real dahdi interface and load res_timing_dahdi ?,
to be honest res_timing_pthread and res_timing_timerfd module for now can
complicate things even further. i have a few sites force me to roll out a
dahdi interface just to solve a timing issues on my end. 

Since then i have zero issues with regards to timing/clock source issues,
just my 0.002 cents 

Regards, 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-17 14:02 loloski        Note Added: 0132100                          
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