Hi Robert,

How to get information about error? I must use Valgrind?


3 мая 2011 г. 14:03 пользователь Robert Osfield
<[email protected]> написал:
> Hi Maxim,
>
> Very strange.  The threading part of osgViewer hasn't changed, and
> OpenThreads under Linux hasn't changed, I don't think there is any
> recent changes on the OSG side that might have introduced problems.
> Doing the exactly same test on my system doesn't result in any
> problems.
>
> My best guess is that there is some driver issue on your system which
> is causing a failure to create the required graphics context.  As I
> suggest before getting a strack and looking at where the crash happens
> might provide some clues.
>
> Robert.
>
> 2011/5/2 Maxim Gammer <[email protected]>:
>> Hi Robert,
>>
>> I checked, the result has not changed ...
>>
>> osgviewer ./osgcool.osg
>> Error: In Texture::Extensions::setupGLExtensions(..) OpenGL version
>> test failed, requires valid graphics context.
>> Ошибка сегментирования (Segmentation error)
>>
>> and osgviewer crash with probability 50..70%
>>
>> If i use the string   export OSG_THREADING=SingleThreaded   .. all ok.
>>
>> Cheers,
>>
>>
>> 2011/5/2 Maxim Gammer <[email protected]>:
>>> thanks for advice ... I will try to double-check
>>>
>>> glxinfo on my machine returns:
>>> OpenGL vendor string: NVIDIA Corporation
>>> OpenGL renderer string: GeForce 8800 GT/PCI/SSE2
>>> OpenGL version string: 3.3.0 NVIDIA 260.19.26
>>> OpenGL shading language version string: 3.30 NVIDIA via Cg compiler
>>>
>>>
>>> P.S.
>>>
>>> Robert, I'm sorry that I write a letter to you personally.
>>> how to get username / password for edit OpenSceneGraph wiki pages -
>>> http://www.openscenegraph.org/projects/osg/wiki/Screenshots/(MyProject)?
>>> I already wrote an email to joseluis.hidalgo ..... But without result
>>> Many times I wrote this letter to [email protected],
>>> but no one answers.
>>>
>>>
>>>
>>>
>>>
>>> 2011/5/2 Robert Osfield <[email protected]>:
>>>> Hi Maxim,
>>>>
>>>> I haven't seen any threading issues with svn/trunk, testing with
>>>> Kubuntu 10.10 64bit, and there aren't any recent changes that are
>>>> likely to affect threading behaviour under Linux.  I would suspect a
>>>> build issue, runtime linkage issue.  Could you try a clean build and
>>>> double check that you don't have older plugins being loaded due to
>>>> hardwired paths to plugins.
>>>>
>>>> glxinfo on my machine returns:
>>>> OpenGL renderer string: GeForce GTX 260/PCI/SSE2
>>>> OpenGL version string: 3.3.0 NVIDIA 260.19.06
>>>>
>>>> Which isn't quite a recent as your driver, so I guess that might be
>>>> another variable.
>>>>
>>>> Beyond this I can't really add too much other than to suggest a debug
>>>> build and looking at the track trace at crash.
>>>>
>>>> Robert.
>>>>
>>>> On Sun, May 1, 2011 at 7:21 PM, Maxim Gammer <[email protected]> wrote:
>>>>> Hi all,
>>>>>
>>>>> I tried to use OSG 2.9.13 and found a strange problem....
>>>>>
>>>>> If you do not use the string
>>>>>    export OSG_THREADING=SingleThreaded
>>>>> then osgviewer crash with probability 50..70%
>>>>>
>>>>> I think it's all about the default mode is different from SingleThreaded
>>>>>
>>>>> My system:
>>>>>
>>>>> Ubuntu 10.04 amd64
>>>>> Nvidia 260.19.26
>>>>> OSG 2.9.13
>>>>>
>>>>> What do you think about this problem
>>>>>
>>>>> --
>>>>> Maxim Gammer
>>>>> _______________________________________________
>>>>> osg-users mailing list
>>>>> [email protected]
>>>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>>>>
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
>>> --
>>> Maxim Gammer
>>>
>>
>>
>>
>> --
>> Maxim Gammer
>> _______________________________________________
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>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
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-- 
Maxim Gammer
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