QGIS » QGIS Application

QGIS 2.18 new install. One particular project crashes out instantly when trying to move the map canvas, or freezes. This is a fairly simple project with about 15 layers, only 5 of which are active.

One layer appears to be problematic - it is a polyline shapefile (saved out of QGIS from a DXF ASCII 2010 that I imported). This is styled by category (about 40 categories) of which maybe 2/3rds are active.



I created a fresh project & added the layers, testing the zoom as they were added and it was stable until I was just putting the finishing touches to the Composer when it started crashing out .



On advice from the OSGEO list, I removed all the plugins & these projects still crash.



GDB/bt report:

gdb -ex=r --args /usr/bin/qgis.bin

GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1

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Reading symbols from /usr/bin/qgis.bin...(no debugging symbols found)...done.

Starting program: /usr/bin/qgis.bin

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Warning: loading of qgis translation failed [/usr/share/qgis/i18n//qgis_en_GB]

Warning: loading of qt translation failed [/usr/share/qt4/translations/qt_en_GB]

[New Thread 0x7fffcd875700 (LWP 21610)]

[New Thread 0x7fffc7fff700 (LWP 21611)]

[New Thread 0x7fffc75cf700 (LWP 21612)]

[New Thread 0x7fffc6dce700 (LWP 21613)]

Warning: QCss::Parser - Failed to load file "/style.qss"

QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory

[New Thread 0x7fffc65cd700 (LWP 21615)]

Warning: QFileSystemWatcher: failed to add paths: /home/jonathan/.qgis2//project_templates

[New Thread 0x7fffc5dcc700 (LWP 21616)]

[New Thread 0x7fffc55cb700 (LWP 21617)]

Warning: QLayout: Attempting to add QLayout "" to QgsPanelWidgetStack "mWidgetStack", which already has a layout

[New Thread 0x7fff5e7bc700 (LWP 21636)]

[New Thread 0x7fff5df6d700 (LWP 21642)]

[New Thread 0x7fff5d76c700 (LWP 21643)]

[New Thread 0x7fff5cf6b700 (LWP 21644)]

Warning: QPainter::begin: A paint device can only be painted by one painter at a time.

Warning: QPainter::setRenderHint: Painter must be active to set rendering hints

Warning: QPainter::setBrush: Painter not active

Warning: QPainter::setPen: Painter not active



Program received signal SIGSEGV, Segmentation fault.

[Switching to Thread 0x7fff5df6d700 (LWP 21642)]

0x000001c500000231 in ?? ()

(gdb) bt

#0 0x000001c500000231 in ?? ()

#1 0x00007ffff5086d21 in QPainter::end() ()

from /usr/lib/x86_64-linux-gnu/libQtGui.so.4

#2 0x00007ffff610ddd0 in QgsSimpleMarkerSymbolLayerV2::prepareCache(QgsSymbolV2RenderContext&) () from /usr/lib/libqgis_core.so.2.18.4

#3 0x00007ffff610e34b in QgsSimpleMarkerSymbolLayerV2::startRender(QgsSymbolV2RenderContext&) () from /usr/lib/libqgis_core.so.2.18.4

#4 0x00007ffff6165573 in QgsSymbolV2::startRender(QgsRenderContext&, QgsFields const*) () from /usr/lib/libqgis_core.so.2.18.4

#5 0x00007ffff609bb2c in QgsCategorizedSymbolRendererV2::startRender(QgsRenderContext&, QgsFields const&) () from /usr/lib/libqgis_core.so.2.18.4

#6 0x00007ffff6450e2a in ?? () from /usr/lib/libqgis_core.so.2.18.4

#7 0x00007ffff631a4f7 in QgsMapRendererParallelJob::renderLayerStatic(LayerRenderJob&) () from /usr/lib/libqgis_core.so.2.18.4

#8 0x00007ffff631b7e0 in ?? () from /usr/lib/libqgis_core.so.2.18.4

#9 0x00007ffff631b837 in ?? () from /usr/lib/libqgis_core.so.2.18.4

#10 0x00007ffff631bc1d in ?? () from /usr/lib/libqgis_core.so.2.18.4

#11 0x00007ffff5a93005 in QtConcurrent::ThreadEngineBase::run() ()

from /usr/lib/x86_64-linux-gnu/libQtCore.so.4

#12 0x00007ffff5a94fee in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4

#13 0x00007ffff5aa132f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4

#14 0x00007fffee1e8184 in start_thread (arg=0x7fff5df6d700)

at pthread_create.c:312

---Type <return> to continue, or q <return> to quit---

#15 0x00007ffff458e37d in clone ()

at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

(gdb)