[asterisk-bugs] [JIRA] (ASTERISK-22857) Deadlock: Locked Here: chan_iax2.c line 9756 (socket_read)

[David Brillert (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-22857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Brillert updated ASTERISK-22857:
--------------------------------------

    Status: Waiting for Feedback  (was: Waiting for Feedback)

Before I test, how far is this patch from being committed?
It seems to have some open issues...

https://reviewboard.asterisk.org/r/2826/
rmudgett 1 month, 1 week ago (Nov. 25, 2013, 1:12 p.m.)

    Instead of using the pointer as a flag variable which cannot be changed atomically, use a volatile int as the flag variable.  If you still have concernes then you can use ast_atomic_fetchadd_int() to examine and change the int flag.
                
> Deadlock: Locked Here: chan_iax2.c line 9756 (socket_read)
> ----------------------------------------------------------
>
>                 Key: ASTERISK-22857
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-22857
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_iax2
>    Affects Versions: SVN, 11.6.0
>         Environment: 64 bit CentOS, 4GB RAM
>            Reporter: David Brillert
>            Assignee: David Brillert
>            Severity: Critical
>         Attachments: backtrace.txt, core show locks_gdb thread apply all bt full.txt, core show locks svn manual.txt, gdbcorebtbtfull.txt, iax2 debug.txt, valgrind.txt
>
>
> Full deadlock no call processing, no SIP traffic.
> GDB output DONT_OPTIMIZE DEBUG_THREADS BETTER_BACKTRACES thread apply all bt full.txt attached.  The deadlock occurred overnight while the system was idle.
> It is happening on multiple production servers.

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