[asterisk-bugs] [Asterisk 0017564]: Asterisk "locks up" the system when an external process is called from the 'h' extension with a lower priority than Asterisk.

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17564 
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Reported By:                ramonpeek
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17564
Category:                   Resources/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.33 
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:             2010-06-29 05:47 CDT
Last Modified:              2010-06-29 08:05 CDT
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Summary:                    Asterisk "locks up" the system when an external
process is called from the 'h' extension with a lower priority than Asterisk.
Description: 
We noticed that Asterisk "locks up" the system when an external process is
called from the 'h' extension with a lower priority than Asterisk.
This issue is a follow up on issue:
https://issues.asterisk.org/view.php?id=16349

See Additional Information Field for more info....
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 (0124013) ramonpeek (reporter) - 2010-06-29 08:05
 https://issues.asterisk.org/view.php?id=17564#c124013 
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After recompiling asterisk with DONT_OPTIMIZE the problem got a lot less.
Meaning Asterisk slowed down noticeable, but didn't "lock-up" my system
unless I ran Asterisk with the -p option (but that's normally not what we
do!)

Anyway because I still needed to reproduce the problem I set our
PostgreSQL process to run at a "nicer" level of 19 and left Asterisk at the
default level of 0.
To create the traces I create a little bash script to execute all command
in a row and use "nice -19 gbd...." to give gdb a higher priority.
The funny thing was that the Asterisk process fully locked up whilst gdb
was running. After I typed "quit" in gdb Asterisk would continue its
dialplan.
So there is a good chance this gdb will actually show what we are looking
for. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-06-29 08:05 ramonpeek      Note Added: 0124013                          
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