[asterisk-bugs] [Asterisk 0013425]: One-touch parking results in stuck/deadlocked channel if parked channel hangs up while announcement still being played

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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http://bugs.digium.com/view.php?id=13425 
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Reported By:                mdu113
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13425
Category:                   Resources/res_features
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 141028 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-09-04 16:08 CDT
Last Modified:              2008-09-04 16:08 CDT
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Summary:                    One-touch parking results in stuck/deadlocked
channel if parked channel hangs up while announcement still being played
Description: 
This is a continuation of issue 11979. I discovered it just after I
reported everything's fine and that issue got closed. I don't see a way to
re-open it, probably because I'm not the original reporter, so I'm opening
a new issue.
The setup is exactly as I described in 11979:
- features.conf:
[featuremap]
parkcall => *30                ; Park call (one step parking)

[applicationmap]
park_caller => *33,peer/callee,AGI,park.agi|park_caller
park_callee => *33,peer/caller,AGI,park.agi|park_callee

The scenario:
2 SIP endpoints: xyz011101(polycom 501) calls xyz110001(cisco 7960), call
is connected (through FastAGI application), then I dial *30 on xyz011101 to
park the peer and hangup the peer (xyz110001) while announcement being
played to xyz011101. The result is xyz011101 is stucked. It appears in
channel list after I hang it up on the phone and sometimes (intermittently)
asterisk crashes or deadlocks after that.
Here's the console output:
    -- Executing [1100 at xyz:1] Set("SIP/xyz011101-081e15f8",
"TIMEOUT(absolute)=10800") in new stack
    -- Channel will hangup at 2008-09-04 23:48:14 UTC.
    -- Executing [1100 at xyz:2] AGI("SIP/xyz011101-081e15f8",
"agi://devel.acecape.com") in new stack
    -- AGI Script Executing Application: (SetCallerPres) Options:
(allowed_passed_screen)
    -- AGI Script Executing Application: (Set) Options:
(CALLERID(name)=Unknown)
    -- AGI Script Executing Application: (Set) Options:
(CALLERID(num)=Unknown)
    -- AGI Script Executing Application: (Dial) Options:
(SIP/xyz110001|180|Kk)
    -- Called xyz110001
    -- SIP/xyz110001-081e2b88 is ringing
    -- SIP/xyz110001-081e2b88 answered SIP/xyz011101-081e15f8
    -- Started music on hold, class 'default', on channel
'SIP/xyz110001-081e2b88'
  == Parked SIP/xyz110001-081e2b88 on 701 at parkedcalls. Will timeout back
to extension [xyz] , 1 in 600 seconds
    -- <SIP/xyz011101-081e15f8> Playing 'digits/7' (language 'en')
    -- Stopped music on hold on SIP/xyz110001-081e2b88
  == SIP/xyz110001-081e2b88 got tired of being parked
  == CDR on channel 'SIP/xyz110001-081e2b88' lacks end
  == CDR on channel 'SIP/xyz110001-081e2b88' lacks end
[Sep  4 16:48:21] WARNING[24101]: res_features.c:1846 do_parking_thread:
Whoa, failed to remove the extension!
    -- <SIP/xyz011101-081e15f8> Playing 'digits/0' (language 'en')
    -- <SIP/xyz011101-081e15f8> Playing 'digits/1' (language 'en')
    -- Added extension 'isk/var/lib/asterisk/sounds/digits/en/1.al'
priority 1 to parkedcalls
At this point I hangup xyz011101 and do "show channels":
webdevel*CLI> show channels
Channel              Location             State   Application(Data)
SIP/xyz011101-081e15 s at xyz:1              Up     
Dial(SIP/xyz110001|180|Kk)
1 active channel
1 active call
A few minutes later asterisk crashed
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Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2008-09-04 16:08 mdu113         Asterisk Version          => SVN             
2008-09-04 16:08 mdu113         SVN Branch (only for SVN checkouts, not tarball
releases) =>  1.4            
2008-09-04 16:08 mdu113         SVN Revision (number only!) => 141028          
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