[asterisk-bugs] [JIRA] (ASTERISK-28209) res_pjsip_t38: Fax relay calls cause SegFaults when re-invite collision

[Gregory Massel (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=245766#comment-245766 ] 

Gregory Massel commented on ASTERISK-28209:
-------------------------------------------

Yes, 196.216.192.5 is the Asterisk box.
By "relay" I mean T.38 passthrough (i.e that both endpoints talk T.38 and Asterisk does *NOT* gateway between G.711 and T.38).
T.38 Gateway is NOT enabled.



> res_pjsip_t38: Fax relay calls cause SegFaults when re-invite collision
> -----------------------------------------------------------------------
>
>                 Key: ASTERISK-28209
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28209
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_t38
>    Affects Versions: 16.1.0
>         Environment: Ubuntu 16.04 LTS, E3-1285, 32GB RAM
>            Reporter: Gregory Massel
>            Assignee: Gregory Massel
>              Labels: fax, pjsip
>         Attachments: core-dump-2018-12-13-08h04-brief.txt, core-dump-2018-12-13-08h04-full.txt, core-dump-2018-12-13-08h04-locks.txt, core-dump-2018-12-13-08h04-thread1.txt, core-dump-2018-12-13-08h42-brief.txt, core-dump-2018-12-13-08h42-full.txt, core-dump-2018-12-13-08h42-locks.txt, core-dump-2018-12-13-08h42-thread1.txt, t38call2.pcap, t38call.pcap
>
>
> After upgrading to 16.1.0, Asterisk crashed six times in the space of an hour. After downgrading to 13.24.0, it has been rock solid for a number of days. Prior to that it was on 13.23.1 and rock solid for weeks.
> I cannot isolate which component is causing the issue, however, the one possible area in which this server is unique (versus another similar server that is running stable on 16.1.0) is that it uses res_odbc and func_odbc extensively. But blaming those components would be speculative.
> I have attached two backtraces from two different crash events.



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