[Qgis-developer] QGIS sometimes freezes in Windows 7 x64

[Casper Børgesen (CABO)]

Hi Andreas.

It might solve the problem, but as long as I cannot reproduce the problem, disabling multi threaded rendering only saves me the trouble of the issue (in case it helps at all). I would rather see if I can help narrow down the problem by not disabling and give you all the information I can.

But thanks for the tip. I will relay it to my colleagues.

Regards, Casper

-----Original Message-----
From: qgis-developer-bounces at lists.osgeo.org [mailto:qgis-developer-bounces at lists.osgeo.org] On Behalf Of Andreas Neumann
Sent: 22. september 2014 10:33
To: qgis-developer at lists.osgeo.org
Subject: Re: [Qgis-developer] QGIS sometimes freezes in Windows 7 x64

Hi Casper,

Did you try disabling parallel rendering to make sure that the crashes/freezes are really related to the multi-threaded renderer?

Settings -> Options -> Rendering -> Disable Checkbox "Render layers in parallel using many CPU cores"

There seem to be issues with the multi-threaded renderer, but apparently they are very difficult to reproduce and debug.

Fortunately one can very easily disable multi-threade rendering until the issues are solved.

Andreas

Am 22.09.2014 08:24, schrieb Casper Børgesen (CABO):
> Hi Bernhard.
> 
> I cannot reproduce my issue and it doesn't seem related to loading.
> 
> My project consists of:
> 
> - No raster
> - Shapefiles only
> - Rule based styling
> - No groups
> 
> Though our setups are very different, the issues could be related. If I could reproduce the issue, it would be a lot easier to report it. 
> 
> I can see the see the yellow balloon tip informing me of messages added to the message window just before QGIS stops responding. But I can't see the messages since QGIS is not responding.
> 
> 
> Regards Casper
> 
> -----Original Message-----
> From: qgis-developer-bounces at lists.osgeo.org 
> [mailto:qgis-developer-bounces at lists.osgeo.org] On Behalf Of Bernhard 
> Ströbl
> Sent: 22. september 2014 10:09
> To: qgis-developer at lists.osgeo.org
> Subject: Re: [Qgis-developer] QGIS sometimes freezes in Windows 7 x64
> 
> Hi Casper,
> 
> please check if your problem is related with this [1] issue and if yes report any additional infromation there.
> 
> [1] http://hub.qgis.org/issues/11141
> 
> Bernhard
> 
> Am 22.09.2014 09:55, schrieb Casper Børgesen (CABO):
>> Too often QGIS 2.5 weekly (it happens in 2.4 too) tends to freeze 
>> while drawing the layers. It normally happens when I move around or 
>> zoom out, but I think it can happen when displaying a layer after 
>> loading it). So I guess it has something to do with drawing data or 
>> accessing data from the source.
>>
>> I would like to report this issue (or these issues), but I am not 
>> ready to begin debugging QGIS yet.
>>
>> How can I best help you devs in investigating the issue?
>>
>> -Is there a log file I can gain anything from?
>>
>> -I don't get any messages about a minidump.
>>
>> -QGIS is not responding, so I can't access the message log.
>>
>> -Normally QGIS doesn't return to a working/responding state.
>>
>> My OS is Windows 7 x64 and QGIS is 2.5.0-37 weekly (e46aa62).
>>
>> Regards Casper
>>
>>
>>
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