[Qgis-user] Profile data (other than plugins) that can cause crashes?

[Richard Duivenvoorde]

Not sure if this is in your capabilities, but I would try to compile/install QGIS myself (in debug mode).
Then read up a little about the first steps of gdb, and start QGIS via gdb, then upon a crash the debugger will jump in and you will get some context about the crash.
Even without debugger a in debug mode compiled QGIS will show a lot of info in it's stacktrace.

I'm not aware of other methods (on Kubuntu) to show this..

Some other options:
- try to close the 'browser-panel', I've seen some issues with that one (though not crashes)
- minimize your plugins, or if possible try if you can make QGIS crash without any plugin
- maybe make a list of types of data you load in your projects (to see if it could be data related)
- is it project file related (are you using older projects, not that that should be a problem, but..)

Please create an issue report, with as much info as possible

Others?

Regards,

Richard Duivenvoorde


On 9/22/22 04:31, Patrick Dunford via Qgis-user wrote:
> Good day
> 
> Since I first began to use Kubuntu 22.04 from the .0 release I started to see crashes on Qgis that weren't experienced on the same versions running on previous releases of Kubuntu (certainly the case on 20.04). These seem to come and go depending on some random factors, which makes it extremely hard to write up a meaningful bug report for the issue which is why so far all that has been filed is one with the Ubuntu project bug reporting system.
> 
> All of these crashes occur when Qgis attempts to display a file operation dialog (e.g. add a layer, save a layer definition file, etc).
> 
> Today I started to see these issues happening on a system that has been trouble free for weeks if not months, the crashes became very consistent / repetitive which had not been observed for a long time up to now if at all.
> 
> I have tried a new profile and at the moment that makes the problem go away. However the next question would be what might be contained within a profile that could cause such an issue. Often it is considered the most likely issue in a profile is to do with installed plugins. In this case, both profiles contain the same plugins which are the 10 that are installed as core plugins (5 selected by default). If the issue is within a profile, it must be some other part of the profile.
> 
> Is there any base of experience about other parts of a profile (such as user settings) which can cause issues?
> 
> The most obvious different between profiles in this case is previewImages folder, however removing these images made no difference to the issue. It would require further testing or analysis to try to find out where the issue might be occurring. Nevertheless a bug report has been filed, attaching the old and new profiles.
> 
> Is there any straightforward way of producing a comparison between different versions of the databases (which must include all the user settings) in a profile.
> 
> T.I.A.
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