[asterisk-bugs] [Asterisk 0018619]: Asterisk deadlocks with no errors

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18619 
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Reported By:                wufan
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18619
Category:                   Core/General
Reproducibility:            random
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.2.15 
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:             2011-01-14 07:57 CST
Last Modified:              2011-01-25 10:54 CST
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Summary:                    Asterisk deadlocks with no errors
Description: 
Hi,

we have every https://issues.asterisk.org/view.php?id=5#c1-2 weeks a deadlock. 
Max 10 cc. About 40 users.
Never get any error message or warning.

Last time it happend 2010-12-21 (with version 1.6.2.13) the console
outputs some sip destroying packets and the peers go offline about 5
minutes later availible again and so on.. the asterisk didnt answered to
the sip packets or answered after a few seconds.

This time it happened (1 hour ago) (with version 1.6.2.15) there are no
such errors .. only nothing :)

When i wrote "sip show peers" it showed me the peers
but console dial 50 at context did nothing.


======================================================================
Relationships       ID      Summary
----------------------------------------------------------------------
related to          0018310 [patch] hint state changes deadlock/race
related to          0018036 Incoming SIP UDP packets are ignored.
related to          0018511 [patch] Asterisk hangs with no calls be...
related to          0018132 SIp channel stop work
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 (0131011) wufan (reporter) - 2011-01-25 10:54
 https://issues.asterisk.org/view.php?id=18619#c131011 
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A hour ago i had another crash (didnt upgraded. its 1.6.2.15)-
But the behavior was different.
The Sip didnt send sip packets or didnt get the answers.
The incoming dahdi calls were logged.
 -- Started music on hold, class 'default', on DAHDI/4-1
  == Using SIP RTP CoS mark 5
  == Extension Changed 77[custom] new state Ringing for Notify User 12
  == Extension Changed 77[custom] new state Ringing for Notify User 81
  == Extension Changed 77[custom] new state Ringing for Notify User 78
  == Extension Changed 77[custom] new state Ringing for Notify User 83
But there was no "SIP/77 is ringing"
and no response to outgoing calls.

Shortly before the "crash" there was a weired transfer action. 
83 answered a call.
83 want to transfer it to 12.
12 was busy.
12 was idle.
12 calls 83 (back)
83 was busy.
12 was idle.
83 transfered it to 12.
Dont know if this was by accident or it is related to my other bug.
I only found some (snom) transfer bugs with 1.8.
i upload backtrace and locks.
thanks 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-25 10:54 wufan          Note Added: 0131011                          
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