[asterisk-bugs] [JIRA] (ASTERISK-20375) Asterisk channel reference leak when attempting to transfer a call originated to a local channel running the Echo application

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan updated ASTERISK-20375:
-----------------------------------

    Target Release Version/s: 10.10.0
                              1.8.18.0
    
> Asterisk channel reference leak when attempting to transfer a call originated to a local channel running the Echo application
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-20375
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20375
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_local, Channels/chan_sip/Interoperability
>    Affects Versions: 1.8.16.0
>            Reporter: Mark Michelson
>      Target Release: 1.8.18.0, 10.10.0
>
>         Attachments: ami.pcap, asteriskcliwithwarnings.txt, gdbthreadapplyall_non_optimized.txt, ngrepami.txt, sip.pcap
>
>
> While working on a separate issue, I managed to reliably create a situation that results in a channel reference leak.
> Use the following extensions.conf:
> {noformat}
> [default]
> exten => 11,1,Answer()
> same => n,Echo()
> exten => 2301,1,Dial(Local/11 at default,,t)
> {noformat}
> 1) From the CLI issue the following command:
> {noformat}
> originate SIP/999 extension 2301 at default
> {noformat}
> where SIP/999 is a SIP phone.
> 2) Pick up SIP/999 when it starts ringing.
> 3) Press the configured attended transfer DTMF in features.conf. You will start to hear music on hold (odd).
> 4) Hang up SIP/999.
> 5) Issue a {{core show channels}} CLI command.
> You will notice that SIP/999 is still around, as are the two Local/2301 channels. Every so often, a warning message will appear
> {noformat}
> *CLI> [Sep  6 16:37:27] WARNING[610]: chan_sip.c:3918 __sip_autodestruct: Autodestruct on dialog '54200e235d36cebb6182df3d0b9ddf5f at 10.24.20.249:5060' with owner in place (Method: BYE). Rescheduling destruction for 10000 ms
> {noformat}
> Yay, you have leaking channel refs!

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