[Qgis-developer] 2.2 project keeps crashing after load

[Andrea Peri]

I don't like this potential crash when remove a layer used on the composer.

We also experience this kind of situation on qgis 2.0.
In qgis 2.2 I lost of sight the question because our users knowing the
problem paid attention to avoid to remove a layer.
:)

Now I like to try to replicate this problem.

Just some information to understand your infrastructure:
your crash happened  using always the qgis64 from osgeo4w-64 or also
sometime with osgeo4w-32 ?
You use qgis 2.2 stable or dev ?


Thx,

A.


2014-06-27 10:43 GMT+02:00 Andreas Neumann <a.neumann at carto.net>:
> Hi Martin,
>
> It is quite hard to find out what is really causing the issue.
>
> I had Jürgen visiting my machine with Teamviewer but he did not see
> anything obvious. We had quite a few crashes but not a good idea what
> may be causing it.
>
> The interesting thing is that it only happened with certain data
> formats. The crashes appeared with Postgis datasource and SpatiaLite
> datasource, but not with ESRI shapefiles.
>
> The crashes do not appear always. Maybe 1 out of 3 or 4. They appear
> more often after a fresh start of QGIS.
>
> I am afraid I cannot produce an easy to reproduce test-case.
>
> Andreas
>
> Am 27.06.2014 08:22, schrieb Martin Dobias:
>> Hi Andreas
>>
>> I am trying it on my computer, but without any results - I am unable
>> to get the crash.
>>
>> So it does crash only with labeling turned on?
>>
>> Can be the crashing project reduced to just one map layer and still crash?
>>
>> My theory right now is that there will be some unhandled exceptions in
>> the rendering code which will trigger those QPixmap warnings when
>> QgsApplication::notify will try to show a QMessageBox in worker
>> thread.
>>
>> Even it that is true, the question still is why those exceptions get raised...
>>
>> Regards
>> Martin
>>
>>
>>
>> On Wed, Jun 25, 2014 at 10:17 PM, Andreas Neumann <a.neumann at carto.net> wrote:
>>> Thanks for trying.
>>>
>>> I just had Jürgen with Teamviewer at my machine and it is quite hard to
>>> find out what causes the crashes.
>>>
>>> It does not crash at every load. Maybe every third or fourth time in
>>> average. Turning multit-threading off improves the situation a lot -
>>> there are few to none crashes if multi-threading is off.
>>>
>>> When I have layers with free or horizontal polygon labeling on it
>>> crashes more often. So the labeling may trigger the crashes more often
>>> but may not be the cause of the crash.
>>>
>>> I'll keep testing ...
>>>
>>> Andreas
>>>
>>> Am 25.06.2014 14:29, schrieb Saber Razmjooei:
>>>> For me for the first time, when I double-clicked on the project (qgs file)
>>>> it opens qgis and immediately crashed (windows 7 64 bit OSGEO latest
>>>> nightly). I then open the project from within QGIS, it worked fine. And
>>>> double-clicking on the project also worked subsequently.
>>>>
>>>> Cheers,
>>>> Saber
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: qgis-developer-bounces at lists.osgeo.org
>>>> [mailto:qgis-developer-bounces at lists.osgeo.org] On Behalf Of Jürgen E.
>>>> Fischer
>>>> Sent: 25 June 2014 15:21
>>>> To: qgis-developer at lists.osgeo.org
>>>> Subject: Re: [Qgis-developer] 2.2 project keeps crashing after load
>>>>
>>>> Hi Andreas,
>>>>
>>>> On Wed, 25. Jun 2014 at 13:25:07 +0000, Andreas Neumann wrote:
>>>>> I can only reproduce the issue on Windows (Win7 64bit). It does not
>>>>> appear on Linux 64bit. Also on Windows it does not happen always, but
>>>> often.
>>>> [...]
>>>>> My project is here to download with SpatiaLite 4 as a datasource:
>>>>> http://webgis.uster.ch/temp/qgis_crashing_project.zip
>>>>
>>>> Hm, anything special to do?   I tried to zoom and pan - works fine for me.
>>>>
>>>>
>>>>
>>>> Jürgen
>>>>
>>>
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>
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-- 
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Andrea Peri
. . . . . . . . .
qwerty àèìòù
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