[asterisk-bugs] [Asterisk 0011080]: SIP channel stops processing calls, but no apparent deadlock

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A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11080 
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Reported By:                callguy
Assigned To:                russell
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Project:                    Asterisk
Issue ID:                   11080
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   block
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.13  
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             10-24-2007 15:58 CDT
Last Modified:              12-05-2007 11:11 CST
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Summary:                    SIP channel stops processing calls, but no apparent
deadlock
Description: 
Approximately once per week we are seeing asterisk stop processing SIP
calls. The behavior is the same as a deadlock, but core show locks does not
show any evidence that there is a deadlock. 

The only way to resolve is to restart asterisk. 

output of:
core show locks
info thread
thread apply all bt

from the running process is attached.
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Relationships       ID      Summary
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related to          0011165 Deadlock in channel.c
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---------------------------------------------------------------------- 
 russell - 12-05-07 11:11  
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For anyone that is experiencing a deadlock, the thing that you can do to
help is this:

Build your system with DEBUG_THREADS turned on.  Run "make menuselect",
Compiler Flags, hit space to turn on DEBUG_THREADS, 'x' to save and quit. 
Recompile, reinstall ...

Then, when this issue occurs, grab the output of the "core show locks" CLI
command.

# asterisk -rx "core show locks" > showlocks.txt 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
12-05-07 11:11  russell        Note Added: 0074830                          
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