[asterisk-bugs] [Asterisk 0018494]: [patch] Random Deadlocks in <chan_sip.c> or <channel.c> !?!

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18494 
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Reported By:                thsgmbh
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18494
Category:                   Channels/chan_sip/General
Reproducibility:            random
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-2762 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): 1.6.2 
SVN Revision (number only!): 296466 
Request Review:              
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Date Submitted:             2010-12-17 05:15 CST
Last Modified:              2011-02-03 02:44 CST
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Summary:                    [patch] Random Deadlocks in <chan_sip.c> or
<channel.c> !?!
Description: 
I get random deadlocks (3-4 times in a week).

See attached Backtrace!

- Asterisk SVN-branch-1.6.2-r296466 (from 27.11.2010)
- Compiled with "Debug Threads/Locks" and "Don't optimize"
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 (0131430) thsgmbh (reporter) - 2011-02-03 02:44
 https://issues.asterisk.org/view.php?id=18494#c131430 
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Another deadlock/freeze... (see attached file)

Now with "BETTER_BACKTRACES" enabled !!!

In nearly EVERY backtrace you can find the function "find_call"
(notifycid?) and "handle_statechange" (BLF?) !??! 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-03 02:44 thsgmbh        Note Added: 0131430                          
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