[mythtv-users] Segfault on starting playback

[Stephen Robertson]

On Thu, Aug 23, 2012 at 4:05 PM, Stephen Robertson
<stephengrobertson at gmail.com> wrote:
> On Thu, Aug 23, 2012 at 3:49 PM, Michael T. Dean
> <mtdean at thirdcontact.com> wrote:
>> On 08/23/2012 10:44 AM, Stephen Robertson wrote:
>>
>>> On Thu, Aug 23, 2012 at 3:02 PM, Michael T. Dean wrote:
>>>>
>>>> On 08/23/2012 07:40 AM, Stephen Robertson wrote:
>>>>
>>>>> On Thu, Aug 23, 2012 at 11:36 AM, Jean-Yves Avenard wrote:
>>>>>>
>>>>>> On Thursday, 23 August 2012, Stephen Robertson wrote:
>>>>>>>
>>>>>>> Any suggestions what I can look at?  I am guessing that this is really
>>>>>>> a configuration/installation problem as no one else seems to be having
>>>>>>> these issues.
>>>>>>>
>>>>>> No matter what your configuration is, myth should never crash..
>>>>>>
>>>>>> Create a backtrace and lodge a ticket:
>>>>>> http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2
>>>>>>
>>>>>> If you're using Ubuntu packages, there's a myth debug package you
>>>>>> install
>>>>>> so
>>>>>> you don't have to recompile myth.
>>>>>
>>>>> I opened a ticket #11010 which was then closed when I thought the
>>>>> problem had been resolved by left over libraries.  Should I open a new
>>>>> ticket?
>>>>
>>>>
>>>> Something is definitely wrong with the stack traces at the launchpad
>>>> ticket
>>>> ( https://bugs.launchpad.net/mythbuntu/+bug/1038746 ).  The
>>>> Stacktrace.txt
>>>> (which is supposed to be just the crashing thread) and
>>>> ThreadStacktrace.txt
>>>> (which is supposed to be all threads) don't match
>>>> up--ThreadStacktrace.txt
>>>> shows only one unimportant thread (as if it was created at some other
>>>> time
>>>> and is preventing creation of a new one?).
>>>>
>>>> We'll need better traces to be able to guess what's wrong.  See
>>>> http://www.mythtv.org/wiki/Debugging for more info on debugging with
>>>> *buntu,
>>>> and you may need to talk with some *buntu users to get help fixing the
>>>> data-collection mechanism they have.
>>>>
>>>> Mike
>>>
>>> I've just attempted to create a new trace following the wiki procedure
>>> (I had tried the last time too, honest!!)  I also cleared out
>>> /var/crash.
>>>
>>> It's on launchpad at https://bugs.launchpad.net/mythbuntu/+bug/1040687
>>>
>>> Is this any more useful?
>>
>>
>> ThreadStacktrace.txt still seems broken.  I don't know anything about the
>> mechanism, so won't be much help.  Perhaps someone else would have an idea?
>>
>>
>> Mike
>
> Looks to at least be some more information in this one, whether it is
> correct or not I don't know
>
> https://bugs.launchpad.net/mythbuntu/+bug/1040702
>
> Thanks
> Stephen

I've also attempted to follow the instructions for obtaining a
backtrace using gdb the gdb.txt file is at the link below ( I don't
know whether that is too big for the list)

https://www.dropbox.com/s/swp8kx1ke6cfuoc/gdb.txt

Thanks

Stephen