Details
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Bug
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Resolution: Done
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P1: Critical
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5.12.3
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None
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All
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97f194cfabf9d8ab186241760a29bae1f4811184 (qt/qtscript/5.15)
Description
QScriptEngine can crash during reportAdditionalMemoryCost if it triggers a gc of an Identifier.
Here is an example stack trace from the High Fidelity interface.exe app.
> Qt5Script.dll!QTWTF::HashTable<QTJSC::UStringImpl *,QTJSC::UStringImpl *,QTWTF::IdentityExtractor<QTJSC::UStringImpl *>,QTWTF::StrHash<QTJSC::UStringImpl *>,QTWTF::HashTraits<QTJSC::UStringImpl *>,QTWTF::HashTraits<QTJSC::UStringImpl *> >::find(QTJSC::UStringImpl * const & key) Line 324 C++ [Inline Frame] Qt5Script.dll!QTWTF::HashSet<QTJSC::UStringImpl *,QTWTF::StrHash<QTJSC::UStringImpl *>,QTWTF::HashTraits<QTJSC::UStringImpl *> >::find(QTJSC::UStringImpl * const &) Line 166 C++ [Inline Frame] Qt5Script.dll!QTWTF::HashSet<QTJSC::UStringImpl *,QTWTF::StrHash<QTJSC::UStringImpl *>,QTWTF::HashTraits<QTJSC::UStringImpl *> >::remove(QTJSC::UStringImpl * const &) Line 240 C++ [Inline Frame] Qt5Script.dll!QTJSC::IdentifierTable::remove(QTJSC::UStringImpl * r) Line 61 C++ Qt5Script.dll!QTJSC::Identifier::remove(QTJSC::UStringImpl * r) Line 239 C++ Qt5Script.dll!QTJSC::UStringImpl::~UStringImpl() Line 70 C++ [External Code] Qt5Script.dll!QTJSC::Heap::sweep() Line 1120 C++ Qt5Script.dll!QTJSC::Heap::recordExtraCost(unsigned __int64 cost) Line 358 C++ interface.exe!ScriptEngine::qt_static_metacall(QObject * _o, QMetaObject::Call _c, int _id, void * * _a) Line 416 C++ Qt5Core.dll!QObject::event(QEvent * e) Line 1260 C++ Qt5Widgets.dll!QApplicationPrivate::notify_helper(QObject * receiver, QEvent * e) Line 3740 C++ Qt5Widgets.dll!QApplication::notify(QObject * receiver, QEvent * e) Line 3691 C++ interface.exe!Application::notify(QObject * object, QEvent * event) Line 4038 C++ Qt5Core.dll!QCoreApplication::notifyInternal2(QObject * receiver, QEvent * event) Line 1060 C++ [Inline Frame] Qt5Core.dll!QCoreApplication::sendEvent(QObject *) Line 1450 C++ Qt5Core.dll!QCoreApplicationPrivate::sendPostedEvents(QObject * receiver, int event_type, QThreadData * data) Line 1799 C++ Qt5Core.dll!qt_internal_proc(HWND__ * hwnd, unsigned int message, unsigned __int64 wp, __int64 lp) Line 247 C++ [External Code] Qt5Core.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 647 C++ [Inline Frame] Qt5Core.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag>) Line 138 C++ Qt5Core.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 225 C++ interface.exe!ScriptEngine::run() Line 1175 C++ [Inline Frame] Qt5Core.dll!QtPrivate::QSlotObjectBase::call(QObject *) Line 394 C++ Qt5Core.dll!QMetaObject::activate(QObject * sender, int signalOffset, int local_signal_index, void * * argv) Line 3782 C++ Qt5Core.dll!QThread::started(QThread::QPrivateSignal _t1) Line 163 C++ Qt5Core.dll!QThreadPrivate::start(void * arg) Line 401 C++ [External Code]