Description of problem: - Create QT Quick (QT Quick 2.4) project - switch to the design tab (or click on the MainForm.ui.qml) Version-Release number of selected component: qt-creator-3.4.2-1.fc22 Additional info: reporter: libreport-2.6.2 backtrace_rating: 4 cmdline: /usr/bin/qml2puppet {5167f935-4c31-44ff-aa4d-58cd8536223a} rendermode '-graphicssystem raster' crash_function: lock executable: /usr/bin/qml2puppet global_pid: 7074 kernel: 4.1.6-200.fc22.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 lock at thread/qmutex.cpp:613 #1 QMutex::lock at thread/qmutex.cpp:215 #2 relock at /usr/include/qt5/QtQml/5.4.2/QtQml/private/qqmlengine_p.h:339 #3 Locker at /usr/include/qt5/QtQml/5.4.2/QtQml/private/qqmlengine_p.h:319 #4 cache at /usr/include/qt5/QtQml/5.4.2/QtQml/private/qqmlengine_p.h:447 #5 QmlDesigner::ServerNodeInstance::create at ../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/instances/servernodeinstance.cpp:244 #6 QmlDesigner::NodeInstanceServer::createInstances at ../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp:134 #7 QmlDesigner::NodeInstanceServer::setupInstances at ../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp:505 #8 QmlDesigner::Qt5NodeInstanceServer::setupScene at ../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/instances/qt5nodeinstanceserver.cpp:97 #9 QmlDesigner::NodeInstanceServer::createScene at ../../../../share/qtcreator/qml/qmlpuppet/qml2puppet/instances/nodeinstanceserver.cpp:256
Created attachment 1067984 [details] File: backtrace
Created attachment 1067985 [details] File: cgroup
Created attachment 1067986 [details] File: core_backtrace
Created attachment 1067987 [details] File: dso_list
Created attachment 1067988 [details] File: environ
Created attachment 1067989 [details] File: limits
Created attachment 1067990 [details] File: maps
Created attachment 1067991 [details] File: mountinfo
Created attachment 1067992 [details] File: namespaces
Created attachment 1067993 [details] File: open_fds
Created attachment 1067994 [details] File: proc_pid_status
Created attachment 1067995 [details] File: var_log_messages
Please try qt-creator-3.5.0-1.fc22 from updates-testing.
Yes, that helps. Please let me know, if I need to give a karma. Thanks
qt-creator-3.5.0-1.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14159
qt-creator-3.5.0-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.