Description of problem: QtCreator crashes fairly regularly when adding a new preprocessor define by clicking on the # icon in the editor toolbar. Restarting it and adding the same define again doesn't crash. Version-Release number of selected component: qt-creator-3.6.0-2.fc23 Additional info: reporter: libreport-2.6.4 backtrace_rating: 4 cmdline: qtcreator crash_function: CppEditor::Internal::CppEditorWidget::<lambda(bool)>::operator() executable: /usr/bin/qtcreator global_pid: 21388 kernel: 4.3.5-300.fc23.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 CppEditor::Internal::CppEditorWidget::<lambda(bool)>::operator() at cppeditor.cpp:192 #1 QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<bool>, void, CppEditor::Internal::CppEditorWidget::finalizeInitialization()::<lambda(bool)> >::call at /usr/include/qt5/QtCore/qobjectdefs_impl.h:495 #2 QtPrivate::Functor<CppEditor::Internal::CppEditorWidget::finalizeInitialization()::<lambda(bool)>, 1>::call<QtPrivate::List<bool>, void> at /usr/include/qt5/QtCore/qobjectdefs_impl.h:552 #3 QtPrivate::QFunctorSlotObject<CppEditor::Internal::CppEditorWidget::finalizeInitialization()::<lambda(bool)>, 1, QtPrivate::List<bool>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) at /usr/include/qt5/QtCore/qobject_impl.h:192 #4 QtPrivate::QSlotObjectBase::call at ../../src/corelib/kernel/qobject_impl.h:124 #5 QMetaObject::activate at kernel/qobject.cpp:3698 #7 CppEditor::Internal::CppEditorDocument::preprocessorSettingsChanged at .moc/release-shared/moc_cppeditordocument.cpp:263 #8 CppEditor::Internal::CppEditorDocument::setPreprocessorSettings at cppeditordocument.cpp:275 #9 CppEditor::Internal::CppEditorWidget::showPreProcessorWidget at cppeditor.cpp:763 #10 CppEditor::Internal::CppEditorWidget::qt_static_metacall at .moc/release-shared/moc_cppeditor.cpp:239
Created attachment 1132234 [details] File: backtrace
Created attachment 1132235 [details] File: cgroup
Created attachment 1132236 [details] File: core_backtrace
Created attachment 1132237 [details] File: dso_list
Created attachment 1132238 [details] File: environ
Created attachment 1132239 [details] File: exploitable
Created attachment 1132240 [details] File: limits
Created attachment 1132241 [details] File: maps
Created attachment 1132242 [details] File: mountinfo
Created attachment 1132243 [details] File: namespaces
Created attachment 1132244 [details] File: open_fds
Created attachment 1132245 [details] File: proc_pid_status
Created attachment 1132247 [details] File: var_log_messages
Taken upstream: https://bugreports.qt.io/browse/QTCREATORBUG-15808 Please follow that ticket in case more information is needed.
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