[asterisk-bugs] [Asterisk 0015655]: [patch] Dialplan starts execution before call is accepted

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15655 
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Reported By:                alecdavis
Assigned To:                rmudgett
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Project:                    Asterisk
Issue ID:                   15655
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     assigned
Asterisk Version:           SVN 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!): 210436 
Request Review:              
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Date Submitted:             2009-08-04 18:40 CDT
Last Modified:              2009-08-05 03:01 CDT
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Summary:                    [patch] Dialplan starts execution before call is
accepted
Description: 
example dialplan code that is repeatable.

exten => 8696,1,Congestion(0)

<b>Correct</b> console output:
 Unknown IE 50 (cs5, Unknown Information Element)
    -- Accepting call from 'XXXX205' to '8696' on channel 0/31, span 1
    -- Executing [8696 at incoming:1] Congestion("DAHDI/31-1", "0") in new
stack
  == Spawn extension (incoming, 8696, 1) exited non-zero on 'DAHDI/31-1'
    -- Hungup 'DAHDI/31-1'

<b>Incorrect</b> console output:

!! Unknown IE 50 (cs5, Unknown Information Element)
    -- Executing [8696 at incoming:1] Congestion("DAHDI/31-1", "0") in new
stack
  == Spawn extension (incoming, 8696, 1) exited non-zero on 'DAHDI/31-1'
    -- Hungup 'DAHDI/31-1'
    -- Accepting call from 'XXXXX205' to '' on channel 0/31, span 1

No further calls can be made into asterisk.
Shortly after. Asterisk will segfault.

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---------------------------------------------------------------------- 
 (0108638) alecdavis (reporter) - 2009-08-05 03:01
 https://issues.asterisk.org/view.php?id=15655#c108638 
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Tried libpri-issue14068 and asterisl-issue14068 and although the fix is
similar and tidier, the output on console is still out of order, 'Accepting
call' is later, I'm guessing will be random.

This output was a call from a Jtec ISDN Switch with CallingSubAddress set
to '2580', CalledSubAddress was '0863' - but thats not relevant yet.

unpatched console output:
    -- Executing [8696 at incoming:1] NoOp("DAHDI/25-1", "9100
callingsubaddr=2580 calledsubaddr=") in new stack
    -- Executing [8696 at incoming:2] Congestion("DAHDI/25-1", "0") in new
stack
    -- Accepting call from 'XXXXX9100' to '8696' on channel 0/25, span 1 

Issue History 
Date Modified    Username       Field                    Change               
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2009-08-05 03:01 alecdavis      Note Added: 0108638                          
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