[Freeswitch-dev] Skypopen segfault

[Anton VG]

Do you still want me to post a JIRA issue, regardles absence of
gudelines of it's reproduction?

2011/5/21 Anton VG <anton.vazir at gmail.com>:
> Problem it's not easy to reproduce that. I't working on production PC,
> as a skype gateway to an asterisk host, serving a bunch of users.
> As per recommendations, after the first segfault I've recompiled the
> FS with no optimization, and dumping the core. Not sure That I can
> produce guidelines to reproduce the given.
> Since I have the core, we can trace it deeper, though. I can add that
> it happen already 5-6 times, and maybe related to fail of the network
> link to neighboring ASTERISK box, while in conversation. But anyway
> not sure though. Atleast once it failed without any network failure,
> with similar backtrace. Seems it's necessary to analyze the
> segfaulting function.
>
> 2011/5/21 Giovanni Maruzzelli <gmaruzz at gmail.com>:
>> Anyway, I just added some guards that will avoid the crashes, but I
>> would still very interested in the procedure to replicate the problem.
>>
>> Please, let me know how you got this problem, also if it does not bite
>> you again.
>>
>> commit 2146583663a5067f6ff71df1e48c3bb900e89db8
>> Author: Giovanni Maruzzelli <gmaruzz at gmail.com>
>> Date:   Sat May 21 02:45:39 2011 -0500
>>
>>    skypopen: adding some guards against NULL sessions and channels
>>
>> commit 7fa3f7f3dd484a0f9688b9df1fc55e093e6d27f0
>> Author: Giovanni Maruzzelli <gmaruzz at gmail.com>
>> Date:   Sat May 21 02:36:51 2011 -0500
>>
>>    skypopen: fixing bug from Anton VG, adding some guards against
>> NULL sessions and channels
>>
>>
>> -giovanni
>>
>> On Sat, May 21, 2011 at 9:27 AM, Giovanni Maruzzelli <gmaruzz at gmail.com> wrote:
>>> Please open a Jira issue with all related info, particularly how to
>>> reproduce this bug and a debug listing.
>>>
>>> Important is that you give a clear way to reproduce the bug, ie: a
>>> step by step way to have the same result (crash in this case).
>>>
>>> -giovanni
>>>
>>> On Sat, May 21, 2011 at 9:12 AM, Anton VG <anton.vazir at gmail.com> wrote:
>>>> Giovanny, I've got several segfaults of FS,
>>>> seems they belongs to SKYPOPEN
>>>>
>>>>
>>>> Core was generated by `./freeswitch -core -nc'.
>>>> Program terminated with signal 11, Segmentation fault.
>>>> #0  0x00007f53e7234028 in switch_core_session_get_channel
>>>> (session=0x0) at src/switch_core_session.c:1082
>>>> 1082            switch_assert(session->channel);
>>>> (gdb) bt full
>>>> #0  0x00007f53e7234028 in switch_core_session_get_channel
>>>> (session=0x0) at src/switch_core_session.c:1082
>>>>        __PRETTY_FUNCTION__ = "switch_core_session_get_channel"
>>>> #1  0x00007f53ce23dd0a in dtmf_received (tech_pvt=0x7f53ce470af0,
>>>> value=0x7f53cd8c6560 "2") at mod_skypopen.c:2138
>>>>        session = 0x0
>>>>        channel = 0x0
>>>>        __func__ = "dtmf_received"
>>>> #2  0x00007f53ce24a1dd in skypopen_signaling_read
>>>> (tech_pvt=0x7f53ce470af0) at skypopen_protocol.c:537
>>>>        read_from_pipe = "CALL 41977 DTMF 2", '\000' <repeats 4078 times>
>>>>        message = "CALL\000\064\061\071\067\067\000DTMF\000\062",
>>>> '\000' <repeats 4078 times>
>>>>        message_2 = "CALL 41977 DTMF 2", '\000' <repeats 4078 times>
>>>>        buf = 0x0
>>>>        obj = "CALL", '\000' <repeats 507 times>
>>>>        id = "41977", '\000' <repeats 506 times>
>>>>        prop = "DTMF", '\000' <repeats 507 times>
>>>>        value = "2", '\000' <repeats 510 times>
>>>>        where = 0x0
>>>>        stringp = 0x7f53cd8c6d68
>>>>        a = 18
>>>>        howmany = 18
>>>>        i = 17
>>>>        __func__ = "skypopen_signaling_read"
>>>> #3  0x00007f53ce236c65 in skypopen_signaling_thread_func
>>>> (thread=0x7f53d80a6378, obj=0x7f53ce470af0) at mod_skypopen.c:1399
>>>>        tech_pvt = 0x7f53ce470af0
>>>>        res = 0
>>>>        forever = 1
>>>>        event = 0x0
>>>>        __func__ = "skypopen_signaling_thread_func"
>>>> #4  0x00007f53e72e1317 in dummy_worker (opaque=0x7f53d80a6378) at
>>>> threadproc/unix/thread.c:138
>>>>        thread = 0x7f53d80a6378
>>>> #5  0x00007f53e67628ba in start_thread () from /lib/libpthread.so.0
>>>> No symbol table info available.
>>>> #6  0x00007f53e5c8e02d in clone () from /lib/libc.so.6
>>>> No symbol table info available.
>>>> #7  0x0000000000000000 in ?? ()
>>>> No symbol table info available.
>>>> (gdb)
>>>>
>>>
>>>
>>>
>>> --
>>> Sincerely,
>>>
>>> Giovanni Maruzzelli
>>> Cell : +39-347-2665618
>>>
>>
>>
>>
>> --
>> Sincerely,
>>
>> Giovanni Maruzzelli
>> Cell : +39-347-2665618
>>
>