[asterisk-ss7] testing chan_ss7 ws libss7

[Matthew Fredrickson]

On Apr 10, 2007, at 10:28 PM, Vazir wrote:

> I know how to debug a core. The condition mentioned is not
> coredumping. Another question if I need to compile asterisk
> with "DO_CRASH" to get core - if it so, just please
> confirm.

No, no.  You can attach to it with gdb while it is in the state where 
it doesn't accept calls, and get a backtrace on all the threads.  That 
might help me to know why it's not accepting calls.

Matthew Fredrickson

>
>
> On ١٠ April ٢٠٠٧ ٢٢:٥٥, Wasim Baig wrote:
>> On ٤/١٠/٠٧, Vazir <anton.vazir at gmail.com> wrote:
>>> Matthew,
>>>
>>> I can give you an ssh access to a pc and will reproduce
>>> the case in a few minutes
>>>
>>> Or tell me how to get full backtrace of the treads.
>>
>> http://www.voip-info.org/wiki/view/Asterisk+debugging
>> Backtracing a core dump file in /tmp
>>
>>    ١. start Asterisk with safe_asterisk
>>    ٢. enter "gdb asterisk core.xxxx"
>>    ٣. enter "bt" while in gdb (or do a "bt full")
>>    ٤. enter "thread apply all bt"
>>
>> Naturally you'll need to have gdb installed on your
>> system
>>
>> Anton.
>>
>>> On ١٠ April ٢٠٠٧ ٢١:٠٩, Matthew Fredrickson wrote:
>>>> It sounds like there might be a locking bug.  If you
>>>> can get me a full backtrace of all the threads on the
>>>> system and file a bug report on bugs.digium.com, I
>>>> will take a look at it.
>>>>
>>>> Matthew Fredrickson
>>>>
>>>> On Apr ٩, ٢٠٠٧, at ٥:٤١ AM, Vazir wrote:
>>>>> Matthew,
>>>>>
>>>>> Made a testbed as of
>>>>>
>>>>> TESTPC < -- > PC_CHAN_SS٧ < -- ٤xe١ -- > PC_LIBSS٧
>>>>>
>>>>> So PC_CHAN_SS٧ is test١ in logs below
>>>>> and PC_LIBSS٧ is test٢
>>>>>
>>>>> Testpc generates huge load by placing call files to
>>>>> the /var/spool/asterisk/outgoing and connecting
>>>>> local extension which plays "hello world" va SIP to
>>>>> PC_CHAN_SS٧ which than places an SS٧ call to
>>>>> PC_LIBSS٧. TESTPC also records all of the placed
>>>>> calls by Monitor() for further manual (audial)
>>>>> analysis .
>>>>>
>>>>> LIBSS٧ initially working and there is both-way
>>>>> audio in all CIC. After a few minutes of the loaded
>>>>> operation it fails signalling (chan_ss٧ PC shows
>>>>> that it looses connection) but even if I stop
>>>>> asterisk on PC_CHAN_SS٧ - the libss٧ keeps thinking
>>>>> that there is connection. Restart or any
>>>>> manipulations on PC_CHAN_SS٧ brings no result and
>>>>> to restore the link asterisk on PC_LIBSS٧ must be
>>>>> restarted.
>>>>>
>>>>> ...
>>>>> Zap/٩٦-١             ١٦٠@incoming:٣       Up
>>>>> Echo() Zap/٩٨-١             ١٦٠@incoming:٣       Up
>>>>>  Echo() Zap/١٠٠-١            ١٦٠@incoming:٣
>>>>> Up Echo() Zap/١٠٢-١            ١٦٠@incoming:٣
>>>>> Up Echo() Zap/١٠٣-١            ١٦٠@incoming:٣
>>>>> Up Echo() Zap/١٠٤-١            ١٦٠@incoming:٣
>>>>> Up Echo() Zap/١٠٥-١            ١٦٠@incoming:٣ Up
>>>>>   Echo() Zap/١١٣-١            ١٦٠@incoming:٣ Up
>>>>>  Echo() Zap/١١٤-١            ١٦٠@incoming:٣ Up
>>>>> Echo() ٩٣ active channels
>>>>> ٩٥ active calls
>>>>> test٢*CLI>
>>>>>
>>>>> test٢*CLI> ss٧ show linkset ١
>>>>> SS٧ linkset ١ status: Up
>>>>> test٢*CLI>
>>>>>
>>>>>
>>>>> test١*CLI> ss٧ link status
>>>>> linkset test٢, link l١, schannel ١٦, NOT_ALIGNED,
>>>>> rx: ٠, tx: ٠/٤, sentseq/lastack: ١٢٧/١٢٧, total
>>>>> ٧٦٧٢٠, ٧٦٧٨٤ test١*CLI>
>>>>>
>>>>> test١*CLI> core show channels
>>>>> Channel              Location             State
>>>>> Application(Data)
>>>>> ٠ active channels
>>>>> ٠ active calls
>>>>> test١*CLI>
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>>>>
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