[asterisk-bugs] [Asterisk 0016012]: Asterisk forks processes then locks up

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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https://issues.asterisk.org/view.php?id=16012 
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Reported By:                acunningham
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16012
Category:                   General
Reproducibility:            random
Severity:                   crash
Priority:                   normal
Status:                     new
Asterisk Version:           Older 1.4 
JIRA:                        
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-10-02 10:39 CDT
Last Modified:              2009-10-02 10:39 CDT
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Summary:                    Asterisk forks processes then locks up
Description: 
One particular Asterisk 1.4.21.1 machine occasionally forks off some child
processes, goes to 100% CPU, and stops responding to calls and the console,
and stops logging. During this time:

test:~# ps -ef | grep asterisk | grep -v grep
root      4830     1  0 Sep07 ?        00:00:00 /bin/sh
/usr/sbin/safe_asterisk -U enswitch -G enswitch
enswitch 25822  4830 55 Sep29 ?        1-16:05:51 /usr/sbin/asterisk -U
enswitch -G enswitch -vvvg -c
enswitch 16080 25822  0 09:33 ?        00:00:00 [asterisk] <defunct>
enswitch 27846 25822  0 14:59 ?        00:00:00 [asterisk] <defunct>
enswitch 12656 25822 99 17:09 ?        00:19:04 /usr/sbin/asterisk -U
enswitch -G enswitch -vvvg -c

The "top" command shows that both process 25822 and 12656 are using 100%
CPU time.

Killing the processes and having safe_asterisk restart Asterisk fixes the
problem in the short term.

Any ideas on how to debug this?
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Issue History 
Date Modified    Username       Field                    Change               
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2009-10-02 10:39 acunningham    New Issue                                    
2009-10-02 10:39 acunningham    Asterisk Version          => Older 1.4       
2009-10-02 10:39 acunningham    Regression                => No              
2009-10-02 10:39 acunningham    SVN Branch (only for SVN checkouts, not tarball
releases) => N/A             
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