[asterisk-bugs] [JIRA] (ASTERISK-20757) Deadlock with 1.8 certified when abandoning queue calls

[Marc Soda (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marc Soda updated ASTERISK-20757:
---------------------------------

    Attachment: core.deadlock.gz
    
> Deadlock with 1.8 certified when abandoning queue calls
> -------------------------------------------------------
>
>                 Key: ASTERISK-20757
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20757
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>    Affects Versions: 1.8.11.1
>            Reporter: Marc Soda
>            Severity: Blocker
>         Attachments: core.deadlock.gz, core_show_locks.txt
>
>
> We are experiencing an easily reproducible deadlock in Asterisk 1.8.11-cert8.  We have a queue setup with a rrmemory and two agents.  The system is under no load.
> Steps to reproduce:
> 1. Call into queue.
> 2. Agent 1 rings and rejects call.
> 3. Agent 2 rings and rejects call.
> 4. Agent 1 rings and rejects call.
> 5. Agent 2 rings and rejects call.
> 6. Caller hangs up.
> Asterisk is now in a deadlocked state.  Running 'core show locks' or 'queue show' produces no results.
> Note, that if you hang up after step 3 above a lock is still held and shows up in 'core show locks'.
> I will post the output of 'core show locks' and the core as well.

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