[asterisk-bugs] [Asterisk 0011091]: autopark strange behaviour if canreinvite=update, nonat

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11091 
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Reported By:                agx
Assigned To:                
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Project:                    Asterisk
Issue ID:                   11091
Category:                   Resources/res_features
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.13  
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             10-26-2007 08:35 CDT
Last Modified:              11-20-2007 07:25 CST
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Summary:                    autopark strange behaviour if
canreinvite=update,nonat
Description: 
The documentation says that re-invites are automatically disabled if a dial
option is included. If i try to call from SIP/13 to SIP/12 and i try to
park the call with *7 (autopark) i get a very strange behaviour:
- me (SIP/13) do not hear "701" that is the first extension slot;
- me (SIP/13) can still hear SIP/12 talking to me
- me (SIP/13) hear a low volume MOH as background;
- SIP/12 hear MOH

The call is started with: Dial(SIP/12|120|rtwkTWK)
i assume that this will disable re-invites.

The problem does not appear if in sip.conf i've canreinvite=no but only
when i use canreinvite=update,nonat

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---------------------------------------------------------------------- 
 agx - 11-20-07 07:25  
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More investigation...

this is the CLI output before the crash:
     -- Started music on hold, class 'default', on channel
'SIP/13-082d5278'
   == Parked SIP/13-082d5278 on 701 at interni. Will timeout back to
extension [interni] s, 1 in 180
seconds
     -- <SIP/12-082d78c0> Playing 'digits/7' (language 'it')
     -- <SIP/12-082d78c0> Playing 'digits/0' (language 'it')
     -- <SIP/12-082d78c0> Playing 'digits/1' (language 'it')
     -- Added extension '701' priority 1 to interni
WARNING[20011] pbx.c: Channel 'SIP/13-082d5278' sent into invalid
extension 's' in context 'interni', but no invalid handler
     -- Stopped music on hold on SIP/13-082d5278

i printed on CLI the variable just before the crash:

AST_MAX_FDS: 8
          x: 0
       chan: 0x82dd138
        fds: 0x82dd168
       fdsX: -1296717200
       rfds: 0xb7a63334
       efds: 0xb7a632b4

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1213842512 (LWP 16975)]
0xb7a6dacc in do_parking_thread (ignore=0x0) at res_features.c:1727
1727 if (chan->fds[x] == -1 || (!FD_ISSET(chan->fds[x], &rfds) &&
!FD_ISSET(chan->fds[x], &efds)))

i suppose that chan->fds[x] cannot be < -1 ? correct ?? ok i tried to
change the code and avoid this to happen. So the crash is happening into a
different point now.
     -- Added extension '701' priority 1 to interni
WARNING[20943]: pbx.c:2455 __ast_pbx_run: Channel 'SIP/13-082f7460' sent
into invalid extension 's' in context 'interni', but no invalid handler
     -- Stopped music on hold on SIP/13-082f7460
   == SIP/13-082f7460 got tired of being parked
WARNING[20723]: channel.c:1238 ast_channel_free: PBX may not have been
terminated properly on 'SIP/13-082f7460'
Program received signal SIGSEGV, Segmentation fault.

I'm uploading gdb.gz with the new backtrace details 

Issue History 
Date Modified   Username       Field                    Change               
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11-20-07 07:25  agx            Note Added: 0074058                          
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