[asterisk-bugs] [Asterisk 0013115]: could NOT get the channel lock

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13115 
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Reported By:                pj
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13115
Category:                   Channels/chan_sip/General
Reproducibility:            random
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 132312 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-07-20 07:13 CDT
Last Modified:              2008-09-06 08:10 CDT
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Summary:                    could NOT get the channel lock
Description: 
Asterisk SVN-trunk-r132312 
I have lot of this error messages on CLI,
It seems, that it can be related to ilbc codec, because it happens mainly
when try to call echotest from xlite/eyebeam softphone with ilbc. 
When I tried same situation with gsm, it doesn't happened (or only
sporadically).


[Jul 20 14:13:17] ERROR[5827]: chan_sip.c:18837 handle_request_do: We
could NOT get the channel lock for SIP/324-083ae4e0!
[Jul 20 14:13:17] ERROR[5827]: chan_sip.c:18838 handle_request_do: SIP
transaction failed: YzcyMGFkMTgyNGNiMTRlMGFhNThkNTBkYjU0Y2FmMGY.
[Jul 20 14:13:18] ERROR[5827]: chan_sip.c:18837 handle_request_do: We
could NOT get the channel lock for SIP/324-083ae4e0!
[Jul 20 14:13:18] ERROR[5827]: chan_sip.c:18838 handle_request_do: SIP
transaction failed: YzcyMGFkMTgyNGNiMTRlMGFhNThkNTBkYjU0Y2FmMGY.

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Relationships       ID      Summary
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has duplicate       0013419 Can't get lock in sip to sip calls
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 (0092136) hulber (reporter) - 2008-09-06 08:10
 http://bugs.digium.com/view.php?id=13115#c92136 
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I'm seeing what might be related on 1.6rc4:

[Sep  6 09:13:06] ERROR[2931]: chan_sip.c:18560 handle_request_do: We
could NOT get the channel lock for SIP/193.111.201.114-1347a6f0! 
[Sep  6 09:13:06] ERROR[2931]: chan_sip.c:18561 handle_request_do: SIP
transaction failed: 32655c3446effe8642c5d91119935c87 at 193.111.201.114 
    -- SIP/sip.gradwell.net-13478da0 answered SIP/sipura2_2-1346c020
    -- Packet2Packet bridging SIP/sipura2_2-1346c020 and
SIP/sip.gradwell.net-13478da0

The call did go out and since I was calling a number that was routed from
external to the same asterisk it was also answered and received. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-09-06 08:10 hulber         Note Added: 0092136                          
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