[asterisk-bugs] [JIRA] (ASTERISK-29604) ari: Segfault with lots of calls

[Danila Evgrafov (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-29604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=256031#comment-256031 ] 

Danila Evgrafov commented on ASTERISK-29604:
--------------------------------------------

For chan_sip i already attached 3 backtraces for different locations:
Backtraces without numbers are corresponding following syslog error:
kernel: [1998361.116212] asterisk[18177]: segfault at 15c ip 0000000000511aef sp 00007fc593c1d480 error 4 in asterisk[400000+326000]
Number 2s are corresponding following syslog error:
kernel: [1985423.203495] traps: asterisk[18206] general protection ip:7fa463deb8e0 sp:7fa3f7c6e610 error:0 in res_stasis.so[7fa463ddd000+22000]
Number 3s are corresponding following syslog error:
kernel: [1986028.157977] asterisk[25618]: segfault at b0545 ip 00007fe4b4796d44 sp 00007fe3f9723890 error 4 in libpthread-2.23.so[7fe4b478d000+18000

> ari: Segfault with lots of calls
> --------------------------------
>
>                 Key: ASTERISK-29604
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29604
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_stasis, Channels/chan_sip/General
>    Affects Versions: 16.18.0, 16.20.0
>         Environment: Asterisk version: 16.20.0
> OS: Ubuntu 16.04 LTS
> Hardware: 4 core CPU, 8Gb RAM, Digital ocean VPS
>            Reporter: Danila Evgrafov
>            Assignee: Unassigned
>            Severity: Major
>         Attachments: core-brief-2.txt, core-brief-3.txt, core-brief-5.txt, core-brief-6.txt, core-brief.txt, core-full-2.txt, core-full-3.txt, core-full-5.txt, core-full-6.txt, core-full.txt, core-info-2.txt, core-info-3.txt, core-info-5.txt, core-info-6.txt, core-info.txt, core-locks-2.txt, core-locks-3.txt, core-locks-5.txt, core-locks-6.txt, core-locks.txt, core-thread1-2.txt, core-thread1-3.txt, core-thread1-5.txt, core-thread1-6.txt, core-thread1.txt, debug_log_29604_5.txt, debug_log_29604_6.txt, debug_log_29604.txt
>
>
> Asterisk randomly crush when processing multiple calls on stasis app.
> I noticed that crushes occures more often when processing playbacks with long audio. But i am not sure if there is some relation.
> My ARI app creating outgoing calls. Crush seems to occure when many calls are answered at the same time and start playbacks. I don't know exact count of simultaneous calls, sometimes problem happens on 40 calls, sometimes on 100.
> Protocol: SIP
> Audio format: gsm
> Syslog:
> kernel: [1998361.116212] asterisk[18177]: segfault at 15c ip 0000000000511aef sp 00007fc593c1d480 error 4 in asterisk[400000+326000]
> When call answered:
> 1) app creates bridge1 and append called channel to it
> 2) app starts recording on bridge1
> 3) app creates bridge2
> 2) app creates snoop channel from called channel
> 3) app creates external media channel
> 4) app appends snoop and media channels to bridge2
> 5) app starts playback on bridge1



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