[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:comment-tabpanel&focusedCommentId=211948#comment-211948 ] 

David Brillert commented on ASTERISK-22857:
-------------------------------------------

@Matt

Regarding the optimized out values, can I get some ideas from this?

gdb -se "asterisk" -ex "bt full" -ex "thread apply all bt" --batch -c core.31340 > /tmp/backtrace.txt
warning: .dynamic section for "/usr/lib/libasteriskssl.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libdl.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libpthread.so.0" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libtermcap.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/usr/lib/libltdl.so.3" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libnsl.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/usr/lib/libgcrypt.so.11" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/usr/lib/libgpg-error.so.0" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libutil.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: Can't read pathname for load map: Input/output error.
warning: Can't read pathname for load map: Input/output error.
warning: Can't read pathname for load map: Input/output error.
warning: Can't read pathname for load map: Input/output error.
warning: Can't read pathname for load map: Input/output error.
warning: Can't read pathname for load map: Input/output error.

                
> 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, 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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