QGIS crashes if network connexion is lost and a raster layer is loaded

[nicogodet]

What is the bug or the crash?

Well... it's quite hard to reproduce this issue...

I will present the context.
I work on QGIS, load some raster layers. LUNCH TIME ! I let QGIS open during my break...
During this break, I think I have some kind of energy saving policy set up on my network card (I contact my IT service for more info). When I come back and try to work again on QGIS, it crashes (see stack trace in additional context).

Let me know if you need additional informations.

Steps to reproduce the issue

1. Load a raster layer
2. Let your network card energy saving policy do the magic
3. Try to move the canvas

As I said, hard to reproduce...

Versions

OSGeo4W V2 QGIS 3.20.3

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

Stack trace

Crash ID: de76013f090dd303fa8e70bcd7dd484d8a04a3e8

Stack Trace

memcpy_repmovs memcpy.asm:114
VSICreateCachedFile :
GDALRegister_TGA :
GDALRegister_TGA :
GDALRegister_TGA :
GDALRegister_GTiff :
GDALRegister_GTiff :
GDALRasterBand::GetLockedBlockRef :
GDALRasterBand::IRasterIO :
GDALRegister_GTiff :
GDALRasterBand::RasterIO :
GDALRasterBand::TryOverviewRasterIO :
GDALRegister_GTiff :
GDALRasterIOEx :
QgsArcGisRestUtils::parseEsriPictureMarkerSymbolJson :
QgsRasterIdentifyResult::params :
QgsRasterIdentifyResult::operator= :
QgsSingleBandPseudoColorRenderer::block :
QgsBrightnessContrastFilter::block :
QgsHueSaturationFilter::block :
QgsRasterResampleFilter::block :
QgsRasterProjector::block :
QgsRasterIterator::readNextRasterPartInternal :
QgsRasterDrawer::draw :
QgsRasterLayerRenderer::render :
QgsMapRendererCustomPainterJob::doRender :
QgsMapRendererCustomPainterJob::staticRender :
QgsMapRendererCustomPainterJob::renderSynchronously :
QThreadPoolPrivate::reset :
QThread::start :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info
QGIS Version: 3.20.3-Odense
QGIS code revision: 495fbae
Compiled against Qt: 5.15.2
Running against Qt: 5.15.2
Compiled against GDAL: 3.3.1
Running against GDAL: 3.3.1

System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 10.0.19043

[uclaros]

Also happens with external HDDs going into power save mode. I think there was an existing issue about it.
Edit: Found it, #38546 was closed as stale though...

[nicogodet]

I just looked for the crash id.. sorry

[rouault]

I can replicate locally on Linux with an external hard drive and by forcing VSI_CACHE=YES as done by OSGeo4W QGIS launcher. The crash occurs in GDAL

[nicogodet]

Upstream issue: OSGeo/gdal#4559

[rouault]

Will be fixed in GDAL 3.3.3

[nicogodet]

Thanks @rouault for this rapid fix !