[asterisk-bugs] [JIRA] (ASTERISK-21639) Segfault in app_confbridge while stress testing

[Robert McGilvray (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=206838#comment-206838 ] 

Robert McGilvray commented on ASTERISK-21639:
---------------------------------------------

Hello,

Any chance this could be assigned to someone? I know things are done on priority so I understand completely.

I'd like to move forward with replacing our Meetme implementation and this bug is a show stopper.

Thanks!
                
> Segfault in app_confbridge while stress testing
> -----------------------------------------------
>
>                 Key: ASTERISK-21639
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21639
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_confbridge
>    Affects Versions: 11.4.0
>         Environment: Redhat EL 6.4 kernel 2.6.32-358.2.1.el6.x86_64
>            Reporter: Robert McGilvray
>            Severity: Critical
>         Attachments: backtrace.txt, confbridge-profiles.txt, dialplan-ael.txt, messages.gz
>
>
> Asterisk Segfaults during stress testing against ConfBridge. It seems to be triggered by a combination of admin/marked and nonadmin/unmarked joining and leaving a single conference.
> It is easily reproduced using SIPP with 100 calls. I've included the dialplan but essentially 100 calls are generated, half use an admin profile and the other half a participant. They are randomly joining 64 bridges for 30s and it crashes every time. 
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007f699bac0d91 in conf_remove_user_waiting (conference_bridge=0x7f690805aeb8, cbu=0x7f6980681fc0) at app_confbridge.c:3060
> 3060    AST_LIST_REMOVE(&conference_bridge->waiting_list, cbu, list);
> #0  0x00007f699bac0d91 in conf_remove_user_waiting (conference_bridge=0x7f690805aeb8, cbu=0x7f6980681fc0) at app_confbridge.c:3060
>         __prev = 0x6361632f6266636f
>         __elm = 0x7f6980681fc0

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