QGIS » QGIS Application

occasionally I have problems with QGIS Server 2.14.0-2 (but not in 2.8.x).



When I switch from a project to another from QGIS Web Client, when it

calls the qgis server (WMS GetProjectSettings) I have a segmentation

fault as you can see in the below GDB backtrace. It seems that it's a

problem in QgsServerProjectParser that didn't exist in 2.8.x.



This problem occurs when I switch from a big project to another, with

inherited layers from other projects.



<pre>

Program received signal SIGSEGV, Segmentation fault.

0xb6f75ba1 in QBasicAtomicInt::ref (this=0x29) at

/usr/include/qt4/QtCore/qatomic_i386.h:120

120 : "memory");



(gdb) bt



#0 0xb6f75ba1 in QBasicAtomicInt::ref (this=0x29) at

/usr/include/qt4/QtCore/qatomic_i386.h:120

#1 0xb6f77b74 in QString::QString (this=0x9c17c44, other=...) at

/usr/include/qt4/QtCore/qstring.h:726

#2 0xb722d753 in QgsMapLayer::id (this=0xcc483d8) at

/usr/local/src/qgis-2.14.2/src/core/qgsmaplayer.cpp:107

#3 0xb7088c81 in QgsLayerTreeLayer::QgsLayerTreeLayer

(this=0x9c17c28, layer=0xcc483d8)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreelayer.cpp:27

#4 0xb708932a in QgsLayerTreeLayer::readXML (element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreelayer.cpp:111

#5 0xb709bf49 in QgsLayerTreeNode::readXML (element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreenode.cpp:56

#6 0xb7086a81 in QgsLayerTreeGroup::readChildrenFromXML

(this=0x9874e18, element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreegroup.cpp:293

#7 0xb70864bc in QgsLayerTreeGroup::readXML (element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreegroup.cpp:259

#8 0xb709befc in QgsLayerTreeNode::readXML (element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreenode.cpp:54

#9 0xb7086a81 in QgsLayerTreeGroup::readChildrenFromXML

(this=0x99d0320, element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreegroup.cpp:293

#10 0xb70864bc in QgsLayerTreeGroup::readXML (element=...)

at /usr/local/src/qgis-2.14.2/src/core/layertree/qgslayertreegroup.cpp:259

#11 0x080f9cc2 in QgsServerProjectParser::findLegendGroupElements

(this=0xcbf39e8)

at /usr/local/src/qgis-2.14.2/src/server/qgsserverprojectparser.cpp:1209

#12 0x080efacb in QgsServerProjectParser::QgsServerProjectParser

(this=0xcbf39e8, xmlDoc=0x8b5b138, filePath=...)

at /usr/local/src/qgis-2.14.2/src/server/qgsserverprojectparser.cpp:59

#13 0x080603e4 in QgsConfigCache::serverConfiguration (this=0x8b7dad0,

filePath=...)

at /usr/local/src/qgis-2.14.2/src/server/qgsconfigcache.cpp:55

#14 0x080f114c in QgsServerProjectParser::createLayerFromElement

(this=0xcbb01c0, elem=..., useCache=true)

at /usr/local/src/qgis-2.14.2/src/server/qgsserverprojectparser.cpp:256

#15 0x080f01b2 in QgsServerProjectParser::projectLayerMap

(this=0xcbb01c0, layerMap=...)

at /usr/local/src/qgis-2.14.2/src/server/qgsserverprojectparser.cpp:102

#16 0x080fadef in QgsServerProjectParser::wfsLayerNames (this=0xcbb01c0)

at /usr/local/src/qgis-2.14.2/src/server/qgsserverprojectparser.cpp:1319

#17 0x080d79eb in QgsWMSProjectParser::wfsLayerNames (this=0x9d7ccc0)

#18 0x0807cec8 in QgsWMSServer::getCapabilities (

this=<error reading variable: Cannot access memory at address 0xbfd6d5e4>,

this@entry=<error reading variable: Cannot access memory at

address 0xbfd6d5dc>,

version=<error reading variable: Cannot access memory at address

0xbfd6d5e8>,

fullProjectInformation=<error reading variable: Cannot access

memory at address 0xbfd6d31c>)

at /usr/local/src/qgis-2.14.2/src/server/qgswmsserver.cpp:589

</pre>