[asterisk-bugs] [JIRA] (ASTERISK-21040) Deadlock involving chan_sip.c, pbx.c and autoservice.c, locking on chan and &conclock

[Modulus (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=203952#comment-203952 ] 

Modulus commented on ASTERISK-21040:
------------------------------------

After analyzing our backtrace, it seems that it is a fax gateway problem.

I removed our backtrace from the current thread, not to be confusing.
We will open a new thread about the bug we found.
                
> Deadlock involving chan_sip.c, pbx.c and autoservice.c, locking on chan and &conclock 
> --------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-21040
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21040
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General, Core/PBX, PBX/pbx_realtime
>    Affects Versions: 11.2.0, 11.2.1
>         Environment: Linux Deban wheezy, kernel 3.2.34, x86_64 GNU/Linux
>            Reporter: Andrew Nowrot
>         Attachments: backtrace-threads.txt, core-show-locks.txt
>
>
> Occasionally Asterisk is being deadlock (no calling response, no invite/registers thru sip). Sometimes it works for a week and sometimes only for several hours. The system load, CPU, RAM are fine.

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