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Details

Type: Bug
Resolution: Incomplete
Priority: P1: Critical
Fix Version/s: None
Affects Version/s: Qt Creator 4.12.0
Component/s: Editors
Labels:
None

Platform/s:

macOS

Description

Qt Design Studio is randomly crashing on shut down presumably due to a double deletion.

TextEditorWidgetPrivate inherits QObject and takes a parent in this case TextEditorWidget. In the destructor of TextEditorWidget the TextEditorWidgetPrivate is explicitly deleted which could collide with the parent deletion mechanism of Qt itself.

The following is a snippet from the attached stack trace.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread\
0   libTextEditor.dylib           	0x0000000113c49966 TextEditor::Internal::TextEditorWidgetPrivate::~TextEditorWidgetPrivate() + 662\
1   libTextEditor.dylib           	0x0000000113c4a0ce TextEditor::Internal::TextEditorWidgetPrivate::~TextEditorWidgetPrivate() + 14\
2   libTextEditor.dylib           	0x0000000113c4e4c0 TextEditor::TextEditorWidget::~TextEditorWidget() + 48\
3   libQmlJSEditor.dylib          	0x0000000116420411 QmlJSEditor::QmlJSEditorWidget::~QmlJSEditorWidget() + 65\
4   org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
5   org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
6   libQmlDesigner.dylib          	0x00000001168b7b32 QmlDesigner::TextEditorWidget::~TextEditorWidget() + 98\
7   org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
8   org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
9   org.qt-project.QtWidgets      	0x000000010e06fdfe QWidget::~QWidget() + 14\
10  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
11  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
12  org.qt-project.QtWidgets      	0x000000010e1dc4fe QScrollArea::~QScrollArea() + 14\
13  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
14  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
15  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c28933 ADS::DockWidget::~DockWidget() + 211\
16  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c28a5e ADS::DockWidget::~DockWidget() + 14\
17  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
18  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
19  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c0dfa5 ADS::DockAreaWidget::~DockAreaWidget() + 229\
20  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c0e0ce ADS::DockAreaWidget::~DockAreaWidget() + 14\
21  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
22  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
23  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27c51 ADS::DockSplitter::~DockSplitter() + 177\
24  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27d6e ADS::DockSplitter::~DockSplitter() + 14\
25  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
26  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
27  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27c51 ADS::DockSplitter::~DockSplitter() + 177\
28  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27d6e ADS::DockSplitter::~DockSplitter() + 14\
29  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
30  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
31  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27c51 ADS::DockSplitter::~DockSplitter() + 177\
32  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c27d6e ADS::DockSplitter::~DockSplitter() + 14\
33  org.qt-project.QtCore         	0x000000010ef6c4e4 QObjectPrivate::deleteChildren() + 228\
34  org.qt-project.QtWidgets      	0x000000010e06f56e QWidget::~QWidget() + 1006\
35  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c1b3b9 ADS::DockManager::~DockManager() + 441\
36  libAdvancedDockingSystem.1.5.0.dylib	0x0000000116c1b97e ADS::DockManager::~DockManager() + 14\
37  libQmlDesigner.dylib          	0x0000000116524acf QmlDesigner::Internal::DesignModeWidget::~DesignModeWidget() + 191\
38  libQmlDesigner.dylib          	0x000000011651c959 QmlDesigner::QmlDesignerPlugin::~QmlDesignerPlugin() + 153\
39  libQmlDesigner.dylib          	0x000000011651c9fe QmlDesigner::QmlDesignerPlugin::~QmlDesignerPlugin() + 14\
40  libExtensionSystem.1.5.0.dylib	0x000000010dd3975b ExtensionSystem::Internal::PluginSpecPrivate::kill() + 27\
41  libExtensionSystem.1.5.0.dylib	0x000000010dd29aed ExtensionSystem::Internal::PluginManagerPrivate::loadPlugin(ExtensionSystem::PluginSpec*, ExtensionSystem::PluginSpec::State) + 205\
42  libExtensionSystem.1.5.0.dylib	0x000000010dd2a131 ExtensionSystem::Internal::PluginManagerPrivate::deleteAll() + 81\
43  libExtensionSystem.1.5.0.dylib	0x000000010dd24374 ExtensionSystem::Internal::PluginManagerPrivate::shutdown() + 84\
44  org.qt-project.QtCore         	0x000000010ef75315 0x10ed4a000 + 2274069\
45  org.qt-project.QtCore         	0x000000010ef423f7 QCoreApplication::exec() + 215\
46  org.qt-project.qtdesignstudio 	0x000000010dd05957 main + 15143\
47  libdyld.dylib                 	0x00007fff6fc12cc9 start + 1\