[asterisk-bugs] [JIRA] (ASTERISK-24540) Presence Causes Deadlock

[Ross Beer (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-24540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ross Beer updated ASTERISK-24540:
---------------------------------

    Status: Waiting for Feedback  (was: Waiting for Feedback)

I've been delving into this deeper and looking at the open RTP ports there appears to be a leak.

For 18 active calls there are 477 open ports, would the SIP channel diver wait for ports to become available?

The issue only happens when the servers are under load so this would correlate.

I have attached an 'lsof' showing the open ports.

> Presence Causes Deadlock
> ------------------------
>
>                 Key: ASTERISK-24540
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24540
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 1.8.32.0, 11.14.0
>         Environment: CentOS 6.4, CentOS 6.5, CentOS 7
>            Reporter: Ross Beer
>            Assignee: Ross Beer
>         Attachments: backtrace-threads_21-11-2014-clean.txt, backtrace-threads-clean_server2.txt, backtrace-threads-clean.txt, lsof_24-11-2014_1158.txt, server2_additional_debug.txt, threads.txt
>
>
> We are experiencing an issue where the SIP channel driver pauses and does not allow further registrations or calls to progress.
> Looking at core dumps shows lock waits for app_dial and presence.
> Unfortunately asterisk had not been compiled with the correct settings so I will need to provide further back traces when the issue happens again, however have attached the files I have now.



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