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Details

Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 6.2.1, 6.3
Affects Version/s: 6.2.0
Component/s: Quick: SceneGraph
Labels:
None
Environment:
window10 or macOS

Platform/s:

macOS, Windows

Description

The ThreadedRenderLoop is enabled by default. If QuickItem is created quickly and removed frequently, the Qt Scene Graph rendering thread will trigger crash when using the texture object.
The QD3D11Texture(0x0000024B62B268C0) object is freed during the QuickItem destructor, but is still used in the standalone rendering thread.

********  QD3D11Texture Delete:  0x5D60, 0x0000024b62b268c0 {tex=0x0000024b03a32278 <d3d11.dll 的符号文件中无可用的类型信息> tex3D=0x0000000000000000 <NULL> ...}  	Qt6Guid.dll!QD3D11Texture::~QD3D11Texture
	Qt6Guid.dll!QD3D11Texture::`scalar deleting destructor'
	Qt6Quickd.dll!QSGRhiLayer::releaseResources
	Qt6Quickd.dll!QSGRhiLayer::setItem
	Qt6Quickd.dll!QQuickShaderEffectSource::sourceItemParentChanged
	Qt6Quickd.dll!QQuickShaderEffectSource::qt_static_metacall
	Qt6Cored.dll!doActivate<0>
	Qt6Cored.dll!QMetaObject::activate
	Qt6Quickd.dll!QQuickItem::parentChanged
	Qt6Quickd.dll!QQuickItem::setParentItem
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQuickImplicitSizeItem::~QQuickImplicitSizeItem
	Qt6Quickd.dll!QQuickLoader::~QQuickLoader
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement<QQuickLoader>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickLoader>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Quickd.dll!QQuickItemLayer::~QQuickItemLayer
	Qt6Quickd.dll!QQuickItemLayer::`vector deleting destructor'
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!qDeleteInEventHandler
	Qt6Cored.dll!QObject::event
	Qt6Quickd.dll!QQuickItem::event
	Qt6Widgetsd.dll!QApplicationPrivate::notify_helper
	Qt6Widgetsd.dll!QApplication::notify
	VECreator.dll!EMGuiApplication::notify
	Qt6Cored.dll!QCoreApplication::notifyInternal2
	Qt6Cored.dll!QCoreApplication::sendEvent
	Qt6Cored.dll!QCoreApplicationPrivate::sendPostedEvents
	Qt6Cored.dll!QEventDispatcherWin32::sendPostedEvents
	Qt6Guid.dll!QWindowsGuiEventDispatcher::sendPostedEvents
	Qt6Cored.dll!QEventDispatcherWin32::processEvents
	Qt6Guid.dll!QWindowsGuiEventDispatcher::processEvents
	Qt6Cored.dll!QEventLoop::processEvents
	Qt6Cored.dll!QEventLoop::exec
	Qt6Cored.dll!QCoreApplication::exec
	Qt6Guid.dll!QGuiApplication::exec
	Qt6Widgetsd.dll!QApplication::exec
	VECreator.dll!entryPoint
	JianyingPro.exe!VELauncher::exec
	JianyingPro.exe!appexec
	JianyingPro.exe!wmain
	JianyingPro.exe!invoke_main
	JianyingPro.exe!__scrt_common_main_seh
	JianyingPro.exe!__scrt_common_main
	JianyingPro.exe!wmainCRTStartup
	kernel32.dll!BaseThreadInitThunk
	ntdll.dll!RtlUserThreadStart
	
********  QD3D11Texture Delete:  0x5D60, 0x0000024b62b26780 {tex=0x0000024b03a32fb8 <d3d11.dll 的符号文件中无可用的类型信息> tex3D=0x0000000000000000 <NULL> ...}  	Qt6Guid.dll!QD3D11Texture::~QD3D11Texture
	Qt6Guid.dll!QD3D11Texture::`scalar deleting destructor'
	Qt6Quickd.dll!QSGRhiLayer::releaseResources
	Qt6Quickd.dll!QSGRhiLayer::setItem
	Qt6Quickd.dll!QQuickShaderEffectSource::sourceItemParentChanged
	Qt6Quickd.dll!QQuickShaderEffectSource::qt_static_metacall
	Qt6Cored.dll!doActivate<0>
	Qt6Cored.dll!QMetaObject::activate
	Qt6Quickd.dll!QQuickItem::parentChanged
	Qt6Quickd.dll!QQuickItem::setParentItem
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQuickImplicitSizeItem::~QQuickImplicitSizeItem
	Qt6Quickd.dll!QQuickLoader::~QQuickLoader
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickLoader>::~QQmlElement<QQuickLoader>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickLoader>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Quickd.dll!QQuickItemLayer::~QQuickItemLayer
	Qt6Quickd.dll!QQuickItemLayer::`vector deleting destructor'
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!QObjectPrivate::deleteChildren
	Qt6Cored.dll!QObject::~QObject
	Qt6Quickd.dll!QQuickItem::~QQuickItem
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::~QQmlElement<QQuickItem>
	Qt6Quickd.dll!QQmlPrivate::QQmlElement<QQuickItem>::`scalar deleting destructor'
	Qt6Cored.dll!qDeleteInEventHandler
	Qt6Cored.dll!QObject::event
	Qt6Quickd.dll!QQuickItem::event
	Qt6Widgetsd.dll!QApplicationPrivate::notify_helper
	Qt6Widgetsd.dll!QApplication::notify
	VECreator.dll!EMGuiApplication::notify
	Qt6Cored.dll!QCoreApplication::notifyInternal2
	Qt6Cored.dll!QCoreApplication::sendEvent
	Qt6Cored.dll!QCoreApplicationPrivate::sendPostedEvents
	Qt6Cored.dll!QEventDispatcherWin32::sendPostedEvents
	Qt6Guid.dll!QWindowsGuiEventDispatcher::sendPostedEvents
	Qt6Cored.dll!QEventDispatcherWin32::processEvents
	Qt6Guid.dll!QWindowsGuiEventDispatcher::processEvents
	Qt6Cored.dll!QEventLoop::processEvents
	Qt6Cored.dll!QEventLoop::exec
	Qt6Cored.dll!QCoreApplication::exec
	Qt6Guid.dll!QGuiApplication::exec
	Qt6Widgetsd.dll!QApplication::exec
	VECreator.dll!entryPoint
	JianyingPro.exe!VELauncher::exec
	JianyingPro.exe!appexec
	JianyingPro.exe!wmain
	JianyingPro.exe!invoke_main
	JianyingPro.exe!__scrt_common_main_seh
	JianyingPro.exe!__scrt_common_main
	JianyingPro.exe!wmainCRTStartup
	kernel32.dll!BaseThreadInitThunk
	ntdll.dll!RtlUserThreadStart
	
######### texD->srv: tid(0x630C)   texD(0x0000024b62b268c0 {tex=0xdddddddddddddddd {...} tex3D=0xdddddddddddddddd {...} owns=true (0xdd) ...})   srv(0xdddddddddddddddd {...})

You can find the attached 1.png/2.png in windows, and 3.png, 4.png in macOS, while it can't be produced in Qt5.15.
Just run the demo project attached, a quick scroll up and down will pop up this error.

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1.png
114 kB
18 Oct '21 05:11
2.png
532 kB
18 Oct '21 05:11
3.png
247 kB
18 Oct '21 05:11
4.png
1.25 MB
18 Oct '21 05:11
LayerEffectTest.zip
5 kB
18 Oct '21 05:11

Issue Links

relates to

QTBUG-94975 [ASAN] Heap-use-after-free in QOpenGLFramebufferObject

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Quick create and remove QuickItem cause QSG threads crash

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