[AG-TECH] RAT crash

Philippe d'Anfray Philippe.d-Anfray at cea.fr
Mon Jul 6 10:00:15 CDT 2009


Bonjour

Apparently it does not correlate to any event, we launch rat and
it just dies after a few minutes  (and it seems) even if nothing else
happens!

I can make other tests if there is a way to collect  more data about
what is happening.

Cordialement

Philippe


Piers O'Hanlon a écrit :
> Hi,
>
>  
>>
>> I launched rat manually with the same parameter "as in the venue".  It
>> works normally then
>> the messages  are issued  all together just before the rat window
>> disappears.
>> The first time a segfault was reported in the logs  but not the second
>> time.
>>     
> The 'Bad address' error (according to 'man errno') corresponds to the
> "EFAULT" error which for recvfrom() indicates: "EFAULT The receive
> buffer pointer(s) point outside the process'€™s address space". This
> points to a memory bug in RAT/common - I've not see this particular
> error before - we'll need to try to work out what is causing it.... Do
> you see any thing happen before RAT crashes - e.g. do you click on a
> particular button, or does a particular participant join the session
> or does this always happen after a set amount of time. Can you see if
> it correlates to any other event or is totally random?
>
>   
>> Cordialement
>>
>> Philippe
>>
>> aristote at aristotest4:~$ rat -4.4.01 -C MARCEL -S 8168306a1e5b045610539184ffd9c0d5 -f L16-16K-Mono accessgrid-bridge.renater.fr/50064
>> recvfrom: Bad address
>> recvfrom: Bad address
>>  ...
>> recvfrom: Bad address
>> recvfrom: Bad address
>> aristote at aristotest4:~$ rat -4.4.01 -C MARCEL -S 8168306a1e5b045610539184ffd9c0d5 -f L16-16K-Mono accessgrid-bridge.renater.fr/50064
>> recvfrom: Bad address
>> recvfrom: Bad address
>>  ...
>> recvfrom: Bad address
>> recvfrom: Bad address
>> Not enough memory
>> aristote at aristotest4:
>>
>>
>> Message in the log for the first crash:
>>
>> Jul 6 13:29:43 aristotest4 kernel: [ 1393.943534] rat-4.4.01-medi[4973]: segfault at 0 ip 0809735a sp bfa365e0 error 6 in rat-4.4.01-media[8048000+6f000]
>>
>>
>>
>>
>> Christoph Willing a écrit :
>>     
>>> On 02/07/2009, at 1:22 AM, D'ANFRAY Philippe wrote:
>>>
>>>       
>>>>  
>>>>
>>>> We're running AG 3.2 beta 1  with Ubuntu 9.04. The machine has a
>>>> creative sound card and we're running the linux driver
>>>> (/XFiDrv_Linux_Public_US_1.00). After a few minutes rat always
>>>> crashes i.e. the rat window just disappears and there's no message if
>>>> we run in debug mode.
>>>>
>>>> I eventually found   messages like the following(s)  in the log
>>>> files  (but not everytime):
>>>>
>>>> Jun 29 17:38:02 aristotest4 kernel: [16153.505141]
>>>> rat-4.4.01-medi[14426]: segfault at 0 ip 080910c7 sp bfe2bcc0 error 6
>>>> in rat-4.4.01-media[8048000+6f000]
>>>>
>>>> Jun 29 13:21:53 aristotest4 kernel: [  784.482769]
>>>> rat-4.4.01-medi[4790]: segfault at 0 ip 0809355c sp bfdb7f40 error 4
>>>> in rat-4.4.01-media[8048000+6f000]
>>>>         
>>>  
>>> As a test, could you run rat from a terminal command line, with
>>> something like:
>>>     rat 233.45.67.89/45678
>>>
>>> and let it run till it crashes and then report any output that appears
>>> in the terminal please?
>>>
>>>  
>>     
>
>   

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