https://bugs.kde.org/show_bug.cgi?id=465872
--- Comment #21 from Jiri Slaby <jirisl...@gmail.com> ---
(In reply to Hans Brage from comment #0)
> #7 0xb442e75c in QV4::ModelObject::virtualGet(QV4::Managed const*,
> QV4::PropertyKey, QV4::Value const*, bool*) (m=0xa15c0820, id=...,
> receiver=0xa15c0820, hasProperty=0x0) at
> /usr/src/debug/qtdeclarative-everywhere-src-5.15.8+kde22/src/qmlmodels/
> qqmllistmodel.cpp:1639
ep is corrupted:
1639 if (QQmlEngine *qmlEngine = that->engine()->qmlEngine()) {
1640 QQmlEnginePrivate *ep = QQmlEnginePrivate::get(qmlEngine);
1641 if (ep && ep->propertyCapture) {
1642 qDebug() << __func__ << ep << ep->propertyCapture;
1643 ep->propertyCapture->captureProperty(that->object(), -1,
role->index, /*doNotify=*/ false);
1644 }
1645 }
This prints:
virtualGet 0xb706dff0 0x8dc35e5b
So:
> (gdb) p *(QQmlEnginePrivate *)0xb706dff0
> $3 = {<QJSEnginePrivate> = {<QObjectPrivate> = {<QObjectData> =
> {_vptr.QObjectData = 0x39e85356, q_ptr = 0x81ffe0f8, parent = 0x1a1265c3,
> children = {<QListSpecialMethods<QObject*>> = {<No data fields>}, {p = {
> static shared_null = {ref = {atomic = {_q_value =
> std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0, array = {0x0}}, d
> = 0x4ec8300}, d = 0x4ec8300}}, isWidget = 1, blockSig = 1, wasDeleted = 0,
> isDeletingChildren = 1, sendChildEvents = 0, receiveChildEvents = 0,
> isWindow = 0, deleteLaterCalled = 1, unused = 1320052, postedEvents =
> 1081407109, metaObject = 0x8d08ec83}, extraData = 0xed9c9483,
> threadData = {<QBasicAtomicPointer<QThreadData>> = {_q_value =
> std::atomic<QThreadData *> = { 0xe85650ff }}, <No data fields>}, connections
> = {<QBasicAtomicPointer<QObjectPrivate::ConnectionData>> = {
> _q_value = std::atomic<QObjectPrivate::ConnectionData *> = {
> 0xffe076c8 }}, <No data fields>}, {currentChildBeingDeleted = 0x8910c483,
> declarativeData = 0x8910c483},
> sharedRefcount =
> {<QBasicAtomicPointer<QtSharedPointer::ExternalRefCountData>> = {_q_value =
> std::atomic<QtSharedPointer::ExternalRefCountData *> = { 0x24448bc2 }}, <No
> data fields>}},
> mutex = {<QMutex> = {<QBasicMutex> = {d_ptr = {_q_value =
> std::atomic<QMutexData *> = { 0x75d28510 }}}, <No data fields>}, <No data
> fields>}, uiLanguage = {d = 0x4c4830b}},
> static baseModulesUninitialized = false, propertyCapture = 0x8dc35e5b,
> jsExpressionGuardPool = {d = 0x90002674}, rootContext = 0x5608ec83, profiler
> = 0x5756e850, outputWarningsToMsgLog = 224, cleanup = 0x4c48310,
> erroredBindings = 0x8dc35e5b, inProgressCreations = -1879038348,
> workerScriptEngine = 0xd9ebc031, baseUrl = {d = 0x26748d},
> activeObjectCreator = 0x53565755, networkAccessManager = 0xe0f7d7e8,
> networkAccessManagerFactory = 0x3c381ff, imageProviders = {{d = 0x83001a12,
> e = 0x83001a12}}, urlInterceptor = 0x748b0cec, scarceResourcesRefCount =
> 2089493540, importDatabase = {
> qmldirCache = {<QStringHashBase> = {<No data fields>}, data = {buckets =
> 0xf6852024, numBuckets = -326927756, size = 1417907464, numBits = -4460},
> newedNodes = 0xe85650fd, nodePool = 0xffe07660},
> filePluginPath = {<QList<QString>> = {<QListSpecialMethods<QString>> =
> {<No data fields>}, {p = {static shared_null = {ref = {atomic = {_q_value =
> std::atomic<int> = { -1 }}}, alloc = 0, begin = 0, end = 0,
> array = {0x0}}, d = 0x8510c483}, d = 0x8510c483}}, <No data
> fields>}, fileImportPath = {<QList<QString>> =
> {<QListSpecialMethods<QString>> = {<No data fields>}, {p = {static
> shared_null = {ref = {
> atomic = {_q_value = std::atomic<int> = { -1 }}}, alloc = 0,
> begin = 0, end = 0, array = {0x0}}, d = 0x833174c0}, d = 0x833174c0}}, <No
> data fields>}, qmlDirFilesForWhichPluginsHaveBeenLoaded = {
> q_hash = {{d = 0x838d08ec, e = 0x838d08ec}}}, initializedPlugins =
> {q_hash = {{d = 0xffeee270, e = 0xffeee270}}}, engine = 0x49e85650},
> typeLoader = {m_engine = 0x83ffe076, m_thread = 0xc08510c4,
> m_mutex = @0xec831774, m_profiler = {d = 0x94838d08}, m_networkReplies =
> {{d = 0x50ffeee2, e = 0x50ffeee2}}, m_typeCache = {{d = 0x7632e856, e =
> 0x7632e856}}, m_typeCacheTrimThreshold = -997982240,
> m_scriptCache = {{d = 0x75c08510, e = 0x75c08510}}, m_qmldirCache = {{d =
> 0x86f8d13, e = 0x86f8d13}}, m_importDirCache = {f = 0x890cc483, l =
> 0x5f5e5be8, hash = {{
> d = 0xb68dc35d <QMenuBar::mousePressEvent(QMouseEvent*)+29>, e =
> 0xb68dc35d <QMenuBar::mousePressEvent(QMouseEvent*)+29>}}, mx = 0, total =
> 1443425411},
> m_importQmlDirCache = {<QStringHashBase> = {<No data fields>}, data =
> {buckets = 0x56bee857, numBuckets = -997982240, size = 214205200, numBits =
> -14967}, newedNodes = 0x5d5f5ee8, nodePool = 0x26b48dc3}},
> offlineStoragePath = {d = 0x0}, uniqueId = 3438013745, incubatorList =
> {__first = 0x26748d}, incubatorCount = 69485707, incubationController =
> 0x30440c7, static qml_debugging_enabled = false,
> networkAccessManagerMutex = {<QBasicMutex> = {d_ptr = {_q_value =
> std::atomic<QMutexData *> = { 0xc3000000 }}}, <No data fields>},
> singletonInstances = {{d = 0x26748d, e = 0x26748d}}, cachedValueTypeInstances
> = {{
> d = 0x89565755, e = 0x89565755}}, m_compositeTypes = {{d = 0x25e853c6,
> e = 0x25e853c6}}, static s_designerMode = false, toDeleteInEngineThread =
> {_first = 0x81ffe0f7, _last = 0x1a1151c3, _flag = 0,
> _count = 376848768}}
Many values/pointers are 0x8dc35e5b or -1879038348/0x90002674 or
0xc483ffe0/-997982240 or their combination. That is obviously bogus.
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