On Fri, Jul 19, 2019 at 09:26:08AM +1000, Nyall Dawson wrote:
> On Thu, 18 Jul 2019 at 16:52, Nathan Woodrow <[email protected]> wrote:
> >
> > Yeah, in this case, the stack trace is wrong because of the lack of 
> > symbols.  The symbols could be installed with QGIS at the increase of 
> > package size but maybe we can do that for a while until we catch this issue.
> 
> I don't think the trace *is* wrong here. The recurring source of these
> issues is that long-lived objects which have QgsCoordinateTransform
> members are being cleaned up AFTER QgsApplication::exitQgis, where the
> proj library handling is gracefully cleaned up. After
> QgsApplication::exitQgis NOTHING should be accessing coordinate
> transforms.

This is a tipical problem with threaded applications.
Some thread is not correctly shut down before app shutdown.

--strk;
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