[asterisk-bugs] [JIRA] (ASTERISK-29609) Subsequent 'ael reload' will cause a lock up

[Benjamin Keith Ford (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-29609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=256090#comment-256090 ] 

Benjamin Keith Ford commented on ASTERISK-29609:
------------------------------------------------

[~kobaz] are you still interested in being the maintainer for AEL? We would be adding your name to the wiki page [1] for extended support. Looks like everyone listed there has an account on the wiki, so if you don't have one, creating one so that others can contact you would be the way to move forward.

[1]: https://wiki.asterisk.org/wiki/display/AST/Asterisk+Open+Source+Maintainers

> Subsequent 'ael reload' will cause a lock up
> --------------------------------------------
>
>                 Key: ASTERISK-29609
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29609
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: PBX/pbx_ael
>    Affects Versions: GIT, 16.15.1, 17.9.3, 18.6.0
>            Reporter: Mark Murawski
>            Assignee: Mark Murawski
>            Severity: Major
>         Attachments: locks-after-15-seconds.txt, locks-after-30-seconds.txt, thread-all-bt.txt
>
>
> Requirements for reproduction of bug:
> - Have a 'decent amount' of ael.  In this case, I have 650 lines of AEL in variety of files.
> Obviously not a 'normal' use case to issue 10 reloads at once, but when multiple scripts/systems might be asking Asterisk to reload at the same time, this could be triggered.
> 5 to 10 reloads should do it!
> {code}
> vbox-markm-x64 {/etc/asterisk/ael} root# for i in `seq 1 10`; do asterisk -rx "ael reload" &  done
> [1] 12335
> [2] 12336
> [3] 12337
> [4] 12338
> [5] 12339
> [6] 12340
> [7] 12341
> [8] 12342
> [9] 12343
> [10] 12344
> vbox-markm-x64 {/etc/asterisk/ael} root# asterisk -rx "core show locks" | grep "Thread ID" | wc -l
> 12
> {code}
> Depending what else is running at the time (perhaps pjsip adding hints to dialplan).  This will escallate quickly and lead to a very locked up Asterisk
> The fix is to address the missing reload mutex in pbx_ael.  



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