[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:                   crash
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 06:42 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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 (0124004) pabelanger (manager) - 2010-06-29 06:42
 https://issues.asterisk.org/view.php?id=17564#c124004 
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Debugging deadlocks:

Please select DEBUG_THREADS and DONT_OPTIMIZE in the Compiler Flags
section of menuselect. Recompile and install Asterisk (i.e. make install)

This will then give you the console command:

core show locks 

When the symptoms of the deadlock present themselves again, please provide
output of the deadlock via:

# asterisk -rx "core show locks" | tee /tmp/core-show-locks.txt

# gdb -se "asterisk" <pid of asterisk> | tee /tmp/backtrace.txt

gdb> bt
gdb> bt full
gdb> thread apply all bt

Then attach the core-show-locks.txt and backtrace.txt files to this issue.
Thanks! 

Issue History 
Date Modified    Username       Field                    Change               
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2010-06-29 06:42 pabelanger     Note Added: 0124004                          
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