QGIS crashes on add layer

[qgib]

Author Name: Dmitry Baryshnikov (Dmitry Baryshnikov)
Original Redmine Issue: 16613
Affected QGIS version: master
Redmine category:gui

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When opening PostGIS layer QGIS crashes.

Here it is part of the dump.

src/app/qgisapp.cpp: 9843: (addVectorLayer) [1ms] got valid layer with 0 sublayers
Fatal: ASSERT failure in QList::at: "index out of range", file /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h, line 537
QGIS died on signal -1[New LWP 10697]

In sources I see using same named variables: QStringList sublayers

The first variable declared here: source:src/app/qgisapp.cpp#L9840
And second here: source:src/app/qgisapp.cpp#L9860

When get 0 element from list, first variable is using, not second, as expected: source:src/app/qgisapp.cpp#L9863

The solutions are:

1. Rename second variable
2. Remove second variable declaration

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Related issue(s): #24495 (duplicates)
Redmine related issue(s): 16593

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[qgib]

Author Name: Giovanni Manghi (@gioman)

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is this when you add the layer from the qgis browser?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• easy_fix was changed from 1 to 0
• priority_id was changed from Normal to High
• crashes_corrupts_data was changed from 0 to 1

[qgib]

Author Name: Dmitry Baryshnikov (Dmitry Baryshnikov)

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Giovanni Manghi wrote:

is this when you add the layer from the qgis browser?

Yes. Drag'n'drop to map canvas from QGIS Browser produces crash too.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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been already fixed, wait a new build downgrade or just use the "add postgis layer" dialog meanwhile.

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• status_id was changed from Feedback to Closed
• resolution was changed from to fixed/implemented

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• duplicates was configured as Segmentation fault when importing CSV file with coordinates #24495

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• description was changed from When opening PostGIS layer QGIS crashes.

Here it is part of the dump.

src/app/qgisapp.cpp: 9843: (addVectorLayer) [1ms] got valid layer with 0 sublayers
Fatal: ASSERT failure in QList::at: "index out of range", file /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h, line 537
QGIS died on signal -1[New LWP 10697]

In sources I see using same named variables: QStringList sublayers

The first variable declared here: https://github.com/qgis/QGIS/blob/master/src/app/qgisapp.cpp#L9840
And second here: https://github.com/qgis/QGIS/blob/master/src/app/qgisapp.cpp#L9860

When get 0 element from list, first variable is using, not second, as expected: https://github.com/qgis/QGIS/blob/master/src/app/qgisapp.cpp#L9863

The solutions are:

Rename second variable

Remove second variable declaration

to When opening PostGIS layer QGIS crashes.

Here it is part of the dump.

src/app/qgisapp.cpp: 9843: (addVectorLayer) [1ms] got valid layer with 0 sublayers
Fatal: ASSERT failure in QList::at: "index out of range", file /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h, line 537
QGIS died on signal -1[New LWP 10697]

In sources I see using same named variables: QStringList sublayers

The first variable declared here: source:src/app/qgisapp.cpp#L9840
And second here: source:src/app/qgisapp.cpp#L9860

When get 0 element from list, first variable is using, not second, as expected: source:src/app/qgisapp.cpp#L9863

The solutions are:

Rename second variable

Remove second variable declaration