Bug report #14451: regression: qgis crashes on project load, in QgsMapLayer::hasScaleBasedVisibility - QGIS Application - QGIS Issue Tracking

Bug report #14451

regression: qgis crashes on project load, in QgsMapLayer::hasScaleBasedVisibility

Added by Mathieu Pellerin - nIRV over 8 years ago. Updated about 7 years ago.

Status:	Closed
Priority:	Severe/Regression
Assignee:	Nyall Dawson
Category:	Unknown
Affected QGIS version:	master	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:
Crashes QGIS or corrupts data:	Yes	Copied to github as #:	22429

Description

A project which loaded fine yesterday now crashes qgis master.

gdb where output:

#0  0x00007ffff63b5e62 in QgsMapLayer::hasScaleBasedVisibility (this=0x0)
    at /home/webmaster/dev/cpp/QGIS/src/core/qgsmaplayer.cpp:940
#1  0x00007ffff620fc1a in QgsLayerTreeModel::refreshScaleBasedLayers (this=
    0x145a500, idx=...)
    at /home/webmaster/dev/cpp/QGIS/src/core/layertree/qgslayertreemodel.cpp:946
#2  0x00007ffff620fcac in QgsLayerTreeModel::refreshScaleBasedLayers (
    this=0x145a500, idx=...)
    at /home/webmaster/dev/cpp/QGIS/src/core/layertree/qgslayertreemodel.cpp:953
#3  0x00007ffff620e1fe in QgsLayerTreeModel::setLegendMapViewData (
    this=0x145a500, mapUnitsPerPixel=0.0020876826722338203, dpi=96, 
    scale=872567.99237455009)
    at /home/webmaster/dev/cpp/QGIS/src/core/layertree/qgslayertreemodel.cpp:650
#4  0x00007ffff75a4349 in QgisApp::extentChanged (this=0xa7f900)
    at /home/webmaster/dev/cpp/QGIS/src/app/qgisapp.cpp:9565
#5  0x00007ffff7994feb in QgisApp::qt_static_metacall (_o=0xa7f900, 
    _c=QMetaObject::InvokeMetaMethod, _id=255, _a=0x7fffffff9f90)
    at /home/webmaster/dev/cpp/QGIS/bm/src/app/moc_qgisapp.cxx:919
#6  0x00007ffff5c10f60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007ffff6feb599 in QgsMapCanvas::extentsChanged (this=0xfc9040)