[asterisk-bugs] [JIRA] (ASTERISK-25386) Asterisk Chan_sip.c Deadlock. All SIP traffic stops

[Joshua Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=227556#comment-227556 ] 

Joshua Colp commented on ASTERISK-25386:
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Per the Asterisk versions page [1], the maintenance (bug fix) support for the Asterisk branch you are using has ended. For continued maintenance support please move to a supported branch of Asterisk. After testing with a supported branch, if you find this problem has not been resolved, please open a new issue against the latest version of that Asterisk branch.

Thanks!

[1] https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions



> Asterisk Chan_sip.c Deadlock. All SIP traffic stops
> ---------------------------------------------------
>
>                 Key: ASTERISK-25386
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25386
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 1.8.15.0, 1.8.32.3
>         Environment: Centos 6.4 Kernel 2.6.32-358.el6.i686. Core i7-3770k Jetway Q77, 8 GB RAM
> Static flatfiles created by Execs. 
>            Reporter: Christopher
>         Attachments: 1441822220.asterisk-core-show-locks.txt, 1441822220.asterisk-core-show-taskprocessors.txt, 1441822220.asterisk-core-show-threads.txt, 1441822220.asterisk-module-show.txt, 1441822220.asterisk-sip-show-channels.txt, 1441822220.gdb-bt-thread-apply-all-bt.txt
>
>
> All SIP traffic stops randomly. core show channels will never return, core show Locks shows Deadlock in the channel driver. our core show locks looks similar to 21228 and also to 25213. However we are NOT using realtime. this issue occured on average about every 50,000 call completions on 1.8.15-cert5. we installed 1.8.32.3  with DONT_OPTIMIZE, DEBUG_THREADS, BETTER_BACKTRACES, and we are lucky to get 3000 calls being lockups. each time our BT and locks look similar. existing calls continue to progress through applications such as voicemail, queues, etc until they reach a point where chan_sip is required.. (ie a call will continue in the queue until its time to ring an agent.. then that call will hang in dead air). no SIP registrations are accepted. all NOTIFY traffic stops as well. the AMI continues to function. CLI command sip show channels returns, however core show channels hangs. will attach pertinent backtraces



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