[asterisk-bugs] [JIRA] (ASTERISK-25863) Occasionally Asterisk crashes when a iax2 channels connects

[Joshua Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=230015#comment-230015 ] 

Joshua Colp commented on ASTERISK-25863:
----------------------------------------

Thank you for the crash report. However, we need more information to investigate the crash. Please provide:

1. A backtrace generated from a core dump using the instructions provided on the Asterisk wiki [1].
2. Specific steps taken that lead to the crash.
3. All configuration information necesary to reproduce the crash.

Thanks!

[1]: https://wiki.asterisk.org/wiki/display/AST/Getting+a+Backtrace

Note that the backtrace has to be produced with debug symbols and without optimizations enabled. If this is not done the backtrace won't be useful. As well the configuration and complete console output is also needed.

> Occasionally Asterisk crashes when a iax2 channels connects
> -----------------------------------------------------------
>
>                 Key: ASTERISK-25863
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25863
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Channels
>    Affects Versions: 13.7.2
>         Environment: FreePBX 12.0.76.2 distro
>            Reporter: Eyal Hasson
>         Attachments: backtrace.txt
>
>
> We am using FreePBX 12.0.76.2 with asterisk 13.7.2, with a big ARI implementation (1000 lines). We occasionally have asterisk crashes (every few days), and looking into the core dump, we see:
> Program terminated with signal 11, Segmentation fault.
> 0 0x00000000005183be in ast_format_get_codec ()
> Missing separate debuginfos, use: debuginfo-install asterisk13-core-13.7.2-1.shmz65.1.94.x86_64
> ^[[?1034h(gdb) bt
> 0 0x00000000005183be in ast_format_get_codec ()
> 1 0x00000000004d7559 in ast_codec_samples_count ()
> 2 0x00007ff135d0139b in ?? () from /usr/lib64/asterisk/modules/chan_iax2.so
> 3 0x00007ff135d017fc in ?? () from /usr/lib64/asterisk/modules/chan_iax2.so
> 4 0x00007ff135d01fc2 in ?? () from /usr/lib64/asterisk/modules/chan_iax2.so
> Looking in the full log at that time we found:
> [2016-03-20 08:30:05] VERBOSE[2897] chan_iax2.c: Accepting AUTHENTICATED call from 213.151.45.44:55001:
> requested format = alaw,
> requested prefs = (),
> actual format = ulaw,
> host prefs = (ulaw|alaw|siren14|siren7|g722|slin16|slin|g726|g726aal2|adpcm|gsm|ilbc|speex|lpc10|g729|g723),
> priority = mine
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [1001 at from-internal:1] Gosub("IAX2/9105-2459", "StartKhlListen,start,1(from-internal,1001)") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:1] NoOp("IAX2/9105-2459", "entering from-internal / 1001 from 9105") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:2] Set("IAX2/9105-2459", "CONTEXT2=from-internal") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:3] Set("IAX2/9105-2459", "EXTEN2=1001") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:4] Set("IAX2/9105-2459", "AGC(rx)=32000") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:5] Set("IAX2/9105-2459", "AGC(tx)=32000") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:6] Set("IAX2/9105-2459", "DENOISE(rx)=on") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:7] Set("IAX2/9105-2459", "DENOISE(tx)=on") in new stack
> [2016-03-20 08:30:05] VERBOSE[57923][C-0000396d] pbx.c: Executing [start at StartKhlListen:8] Stasis("IAX2/9105-2459", "KhlSystemApp") in new stack
> Thanks,
> Eyal Hasson



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