[asterisk-bugs] [JIRA] (ASTERISK-25455) Deadlock of PJSIP realtime over res_config_pgsql

[Richard Mudgett (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=227862#comment-227862 ] 

Richard Mudgett commented on ASTERISK-25455:
--------------------------------------------

Don't work too hard at fixing the deadlock because that module really does not unload safely anyway.  Fixing the module so it unloads safely should be done by another patch.  When unload_module() returns zero there cannot be any threads executing code within the module without expecting to get a segfault because the code segments are no longer loaded.

> Deadlock of PJSIP realtime over res_config_pgsql 
> -------------------------------------------------
>
>                 Key: ASTERISK-25455
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25455
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip, Resources/res_config_pgsql, Resources/res_pjsip
>    Affects Versions: 13.5.0, 13.6.0
>         Environment: linux 64bit
> kernel 3.10.17
> distro slackware64 14.1 
>            Reporter: mdu113
>            Assignee: Unassigned
>         Attachments: backtrace-threads2.txt, core-show-locks2.txt, core-show-locks.txt, lock-bt-full.txt, res_config_pgsql.c-connlock.diff
>
>
> Asterisk intermittently deadlocks during initial loading of pjsip endpoints. It seems to depend on number of endpoints loaded. With small number of endpoints (up to a 100) it loads ok most of the time. With several hundreds of endpoints it deadlocks sometimes. With several thousand of endpoints it deadlocks most of the time.
> Attached are backtrace and output of "core show locks". The testing was done on asterisk 13.6.0-rc2



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