[mythtv] [Q]: anybody with sporadic segfault with latest trunk?

Emmanuel eallaud at gmail.com
Tue Dec 22 21:18:43 UTC 2009


Robert McNamara a écrit :
> On Tue, Dec 22, 2009 at 9:57 AM, myShade <myshade at bredband.net> wrote:
>   
>> On Tue, 2009-12-22 at 13:47 -0400, Emmanuel wrote:
>>     
>>> Hi all,
>>> sorry to be so unspecific but I got several mythbackend segfaults (I
>>> only realized that later) with latest trunk. Since then I am running the
>>> backend under gdb but, obviously, nothing has happened yet. So I figured
>>> I would ask to see if there was some specific part I would have to
>>> exercise to make it happen ;-)
>>> I use Karmic up to date:
>>> Here is the log in dmesg: the first one is by far the most frequent
>>>
>>> mythbackend[8151]: segfault at 10 ip 02e9a264 sp b670c17c error 4 in
>>> libmyth-0.22.so.0.22.0[2df0000+44d000]
>>>
>>> [53201.571161] mythbackend[1659]: segfault at 84 ip 07923a67 sp b6f980c0
>>> error 4 in libQtCore.so.4.5.2[78da000+22b000]
>>>
>>> the following ones happen with transcode (the transcoded files seem to
>>> be ok):
>>> [106871.652572] mythtranscode[22945]: segfault at db302444 ip 073fda69
>>> sp b68a8000 error 5 in libQtCore.so.4.5.2[73b4000+22b000]
>>>
>>> [107228.866544] mythtranscode[23058]: segfault at 6 ip 009bda00 sp
>>> b69b80c0 error 4 in libmythdb-0.22.so.0.22.0[972000+99000]
>>>       
>> Hi.
>> Yes, Yesterday. Not yet today...( updated to rev 22997 ).
>>
>> Fredrik
>>
>>     
>
> It is impossible to say that any two segfaults are the same without
> the both of you having a backtrace.  None of the above allows one to
> conclude anything helpful, unfortunately.  You'll need to get a
> backtrace.
>   
Yes I know, still waiting though. I just wanted to know if something was 
known to be suspicious and perhaps a way to trigger it (it's been a few 
hours already since I began running the backend under gdb ;-). So it 
seems that no obvious culprit is known for now I hope to get something 
before next year ;-)
BTW I rely heavily on the eit scanning features (active and passive) so 
if it rings a bell...
Thx
ByeManu


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