Qgis crashes when try to identify a layer with duplicated fields

[qgib]

Author Name: KYLE FELIPE VIEIRA ROBERTO (KYLE FELIPE VIEIRA ROBERTO)
Original Redmine Issue: 22126
Affected QGIS version: 3.4.7
Redmine category:map_tools

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User Feedback

Trying to use identify

Report Details

Crash ID: 2b12b3653d5ad5dafac8dd1f7b04fa880dcc89d2

Stack Trace

QgsFilledMarkerSymbolLayerWidget::symbolLayer :
QgsEditorWidgetWrapper::field :
QgsAttributeFormEditorWidget::QgsAttributeFormEditorWidget :
QgsAttributeForm::createWidgetFromDef :
QgsAttributeForm::createWidgetFromDef :
QgsAttributeForm::init :
QgsAttributeForm::QgsAttributeForm :
QgsDualView::init :
QgsRelationEditorWidget::updateUi :
QMetaObject::activate :
QgsCollapsibleGroupBoxBasic::collapsedStateChanged :
QgsCollapsibleGroupBoxBasic::showEvent :
QWidget::event :
QGroupBox::event :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QWidgetPrivate::showChildren :
QWidgetPrivate::show_helper :
QWidget::setVisible :
QDialog::setVisible :
QgsAttributeDialog::show :
QgsFeatureAction::viewFeatureForm :
QgsIdentifyResultsDialog::featureForm :
QgsIdentifyResultsDialog::show :
QgsMapToolIdentifyAction::identifyFromGeometry :
QMetaObject::activate :
QgsMapToolSelect::qt_static_metacall :
QgsMapToolSelect::setSelectionMode :
QgsMapToolIdentifyAction::canvasReleaseEvent :
QgsMapCanvas::mouseReleaseEvent :
QWidget::event :
QFrame::event :
QGraphicsView::viewportEvent :
QCoreApplicationPrivate::sendThroughObjectEventFilters :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QApplicationPrivate::sendMouseEvent :
QSizePolicy::QSizePolicy :
QSizePolicy::QSizePolicy :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QGuiApplicationPrivate::processMouseEvent :
QWindowSystemInterface::sendWindowSystemEvents :
QEventDispatcherWin32::processEvents :
TranslateMessageEx :
TranslateMessage :
QEventDispatcherWin32::processEvents :
qt_plugin_query_metadata :
QEventLoop::exec :
QCoreApplication::exec :
main :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info
QGIS Version: 3.4.7-Madeira
QGIS code revision: 5c56989
Compiled against Qt: 5.11.2
Running against Qt: 5.11.2
Compiled against GDAL: 2.4.1
Running against GDAL: 2.4.1

System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 6.1.7601

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Please try with a new/clean QGIS profile, no 3rd party plugins installed.

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• crashes_corrupts_data was changed from 0 to 1
• priority_id was changed from Normal to High
• status_id was changed from Open to Feedback
• category_id was changed from Unknown to Map Tools

[zoran-cuckovic]

Same thing for me : QGIS 3.4.0 (on Windows) keeps freezing when I use Identify tool on rasters. It seems to launch a process each time I use the tool until it saturates the live memory.

[nyalldawson]

@zoran-cuckovic this was fixed in 3.4.7 - please update

[kylefelipe]

Hi guys! I found the issue...
I was using Drag & Drop Form, and on this form, i had a field that i need to show 2 times, at different parts, and this makes qgis crash.
So, i removed the duplicated field, and it works like a charm.
On version 2.18.x i did not have this issue.

Same happens on 3.4.8

[gioman]

was using Drag & Drop Form, and on this form, i had a field that i need to show 2 times, at different parts, and this makes qgis crash.
So, i removed the duplicated field, and it works like a charm.

@kylefelipe please attach a sample project+data that shows the problem.

[kylefelipe]

@gioman, Done.

sample_project.zip

Sources i have tested:
Postgis layers;
Spatialite/Sqlite layers;
Geopackage layers.

In all the same problem occurred

I made a test using a scratch layer and it woks fine.

test_scratch.zip

[gioman]

sample_project.zip

@kylefelipe this contains only a non spatial table, nothing can be used to identify anything.

[kylefelipe]

@gioman here is....
sample_project.zip

When open attribute table, it crashes to.

[gioman]

@gioman here is....
sample_project.zip

When open attribute table, it crashes to.

@kylefelipe same as before: the project opens (no crash) and has only 1 non-spatial table with no records in it (so also nothing to identify). Saving something in this not-spatial table also works ok.

[kylefelipe]

sample_2.zip

[kylefelipe]

A print!

[gioman]

sample_2.zip

this contains no data. @kylefelipe

[kylefelipe]

@gioman OMG
sample_project.zip

[gioman]

@gioman OMG
sample_project.zip

good. This is confirmed to crash QGIS (master on Linux here) on identify: removing the duplicate fields from the form and... no crash.

[kylefelipe]

@gioman If we do the same, but using a scratch layer, it works like a charm.
Qgis 2.18.X it works well to...