[asterisk-bugs] [Asterisk 0018790]: [patch] Deadlock In chan_sip (conlock / cb_extensionstate

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18790 
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Reported By:                irroot
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18790
Category:                   Channels/chan_sip/General
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.2.16.1 
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:             2011-02-11 01:40 CST
Last Modified:              2011-02-11 01:45 CST
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Summary:                    [patch] Deadlock In chan_sip (conlock /
cb_extensionstate
Description: 

There is a deadlock in processing state changes it would appear conlock
should be locked when calling cb_extensionstate from chan_sip.c ...

have a patch ill be loading up in a follow up.

this was a problem in 1.4 that i hacked to death to make it go away this
patch seems to make more sense.

NB we have only now moved from 1.4.36 [with backports] to 1.6.2.16.1 this
problem affects sites with higher call volume and reliance on BLF
[Snom/Polycom] and may be triggered on a sip/system reload
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 (0131842) irroot (reporter) - 2011-02-11 01:45
 https://issues.asterisk.org/view.php?id=18790#c131842 
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please note the first 2 hunks in patch are not directly related to this bug
but do seem to fix a deadlock and could be extraneous code. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-02-11 01:45 irroot         Note Added: 0131842                          
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