[asterisk-bugs] [JIRA] (ASTERISK-25251) Deadlock in PJSIP

[Gergely Dömsödi (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=226911#comment-226911 ] 

Gergely Dömsödi commented on ASTERISK-25251:
--------------------------------------------

Since I noticed in [^bt-nodns.txt] that asterisk was trying to resolve the local hostname, I realized it was not added to {{/etc/hosts}}. I added it, but unfortunately the result was the same, the lock happened after ~20 minutes.

> Deadlock in PJSIP
> -----------------
>
>                 Key: ASTERISK-25251
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25251
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: 13.1.1, 13.3.2, 13.4.0
>         Environment: Fedora 22
>            Reporter: Gergely Dömsödi
>         Attachments: bt-nodns.txt, bt.txt, bt.txt, fd.txt, locks-nodns.txt, locks.txt, taskprocessors.txt, threads.txt
>
>
> Using PJSIP, after about 10-20 minutes of SIP traffic between two PJSIP peers, a deadlock occurs and Asterisk cannot serve SIP traffic anymore. Incoming INVITES can be seen with a tcpdump, but it is not even visible in pjsip log.
> The issue is reproducible with both the "vanilla" asterisk package in Fedora 22 (13.1.1), with the package currently in updates-testing (13.3.2), and a custom-built 13.4.0. Tried with PJSIP 2.3 from Fedora and a custom built 2.4, both were affected.
> When in the deadlock, PJSIP commands continue to work (pjsip show *), but asterisk cannot be stopped, core stop now just returns, but nothing happens. Only SIGKILL can pull out asterisk from this state.
> Attached outputs and backtraces are from the custom built 13.4.0, with PJSIP 2.4.



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