Details
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Bug
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Resolution: Done
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P2: Important
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5.15.3, 5.15.7, 6.2.1, 6.2, 6.3.0 Alpha
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5.15.0, 6.0.0, 6.1.0, 6.2.0
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All
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0645cf8e30e2311cc3d90cc2cb7abc7a27e91624 (qt/qtdeclarative/dev) 6630713366f86fc757eadc1ea41cd72602d88f86 (qt/qtdeclarative/6.2) 0e5cb85a1021815c1a3d38a67e936d90b59ddf45 (qt/tqtc-qtdeclarative/5.15)
Description
Following crash happened:
Unhandled exception thrown: read access violation.
*this* was 0x2321D02006C.
Callstack:
> Qt6Qmld.dll!QSpecialInteger<QLittleEndianStorageType<unsigned int>>::operator unsigned int() Line 273 C++ Qt6Qmld.dll!QV4::CompilationUnitMapper::close() Line 116 C++ Qt6Qmld.dll!QV4::CompilationUnitMapper::~CompilationUnitMapper() Line 83 C++ [External Code] Qt6Qmld.dll!QHashPrivate::Span<QHashPrivate::Node<QString,QV4::CompilationUnitMapper>>::addStorage() Line 445 C++ Qt6Qmld.dll!QHashPrivate::Span<QHashPrivate::Node<QString,QV4::CompilationUnitMapper>>::insert(unsigned __int64 i) Line 338 C++ Qt6Qmld.dll!QHashPrivate::Data<QHashPrivate::Node<QString,QV4::CompilationUnitMapper>>::findOrInsert(const QString & key) Line 637 C++ Qt6Qmld.dll!QHash<QString,QV4::CompilationUnitMapper>::emplace<QV4::CompilationUnitMapper const &>(QString && key, const QV4::CompilationUnitMapper & <args_0>) Line 1180 C++ Qt6Qmld.dll!QHash<QString,QV4::CompilationUnitMapper>::emplace<QV4::CompilationUnitMapper const &>(const QString & key, const QV4::CompilationUnitMapper & <args_0>) Line 1171 C++ Qt6Qmld.dll!QHash<QString,QV4::CompilationUnitMapper>::insert(const QString & key, const QV4::CompilationUnitMapper & value) Line 1149 C++ Qt6Qmld.dll!StaticUnitCache::set(const QString & file, const QV4::CompilationUnitMapper & staticUnit) Line 66 C++ Qt6Qmld.dll!QV4::CompilationUnitMapper::get(const QString & cacheFilePath, const QDateTime & sourceTimeStamp, QString * errorString) Line 105 C++ Qt6Qmld.dll!QV4::ExecutableCompilationUnit::loadFromDisk(const QUrl & url, const QDateTime & sourceTimeStamp, QString * errorString) Line 821 C++ Qt6Qmld.dll!QQmlTypeData::tryLoadFromDiskCache() Line 146 C++ Qt6Qmld.dll!QQmlTypeData::dataReceived(const QQmlDataBlob::SourceCodeData & data) Line 576 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QQmlDataBlob::SourceCodeData & d) Line 447 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QString & fileName) Line 436 C++ Qt6Qmld.dll!QQmlTypeLoader::loadThread(QQmlDataBlob * blob) Line 299 C++ Qt6Qmld.dll!PlainLoader::loadThread(QQmlTypeLoader * loader, QQmlDataBlob * blob) Line 145 C++ Qt6Qmld.dll!QQmlTypeLoader::doLoad<PlainLoader>(const PlainLoader & loader, QQmlDataBlob * blob, QQmlTypeLoader::Mode mode) Line 204 C++ Qt6Qmld.dll!QQmlTypeLoader::load(QQmlDataBlob * blob, QQmlTypeLoader::Mode mode) Line 236 C++ Qt6Qmld.dll!QQmlTypeLoader::getType(const QUrl & unNormalizedUrl, QQmlTypeLoader::Mode mode) Line 868 C++ Qt6Qmld.dll!QQmlTypeData::resolveTypes() Line 867 C++ Qt6Qmld.dll!QQmlTypeData::allDependenciesDone() Line 742 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QQmlDataBlob::SourceCodeData & d) Line 450 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QString & fileName) Line 436 C++ Qt6Qmld.dll!QQmlTypeLoader::loadThread(QQmlDataBlob * blob) Line 299 C++ Qt6Qmld.dll!PlainLoader::loadThread(QQmlTypeLoader * loader, QQmlDataBlob * blob) Line 145 C++ Qt6Qmld.dll!QQmlTypeLoader::doLoad<PlainLoader>(const PlainLoader & loader, QQmlDataBlob * blob, QQmlTypeLoader::Mode mode) Line 204 C++ Qt6Qmld.dll!QQmlTypeLoader::load(QQmlDataBlob * blob, QQmlTypeLoader::Mode mode) Line 236 C++ Qt6Qmld.dll!QQmlTypeLoader::getType(const QUrl & unNormalizedUrl, QQmlTypeLoader::Mode mode) Line 868 C++ Qt6Qmld.dll!QQmlTypeData::resolveTypes() Line 867 C++ Qt6Qmld.dll!QQmlTypeData::allDependenciesDone() Line 742 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QQmlDataBlob::SourceCodeData & d) Line 450 C++ Qt6Qmld.dll!QQmlTypeLoader::setData(QQmlDataBlob * blob, const QString & fileName) Line 436 C++ Qt6Qmld.dll!QQmlTypeLoader::loadThread(QQmlDataBlob * blob) Line 299 C++ Qt6Qmld.dll!QQmlTypeLoaderThread::loadThread(QQmlDataBlob * b) Line 163 C++ Qt6Qmld.dll!`QQmlThread::callMethodInThread<QQmlDataBlob *,QQmlDataBlob *,QQmlTypeLoaderThread>'::`2'::I::call(QQmlThread * thread) Line 165 C++ Qt6Qmld.dll!QQmlThreadPrivate::threadEvent() Line 200 C++ Qt6Qmld.dll!QQmlThreadPrivate::event(QEvent * e) Line 143 C++ Qt6Widgetsd.dll!QApplicationPrivate::notify_helper(QObject * receiver, QEvent * e) Line 3396 C++ Qt6Widgetsd.dll!QApplication::notify(QObject * receiver, QEvent * e) Line 2758 C++ Qt6Cored.dll!QCoreApplication::notifyInternal2(QObject * receiver, QEvent * event) Line 1063 C++ Qt6Cored.dll!QCoreApplication::sendEvent(QObject * receiver, QEvent * event) Line 1472 C++ Qt6Cored.dll!QCoreApplicationPrivate::sendPostedEvents(QObject * receiver, int event_type, QThreadData * data) Line 1830 C++ Qt6Cored.dll!QEventDispatcherWin32::sendPostedEvents() Line 904 C++ Qt6Cored.dll!QEventDispatcherWin32::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 474 C++ Qt6Cored.dll!QEventLoop::processEvents(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 140 C++ Qt6Cored.dll!QEventLoop::exec(QFlags<enum QEventLoop::ProcessEventsFlag> flags) Line 232 C++ Qt6Cored.dll!QThread::exec() Line 544 C++ Qt6Qmld.dll!QQmlThreadPrivate::run() Line 156 C++ Qt6Cored.dll!QThreadPrivate::start(void * arg) Line 329 C++ [External Code]
I investigated the code and started wondering how the StaticUnitCache stores CompilationUnitMapper instances in QHash<QString, CompilationUnitMapper> and the destructor of CompilationUnitMapper closes the mmapped file?
CompilationUnitMapper::~CompilationUnitMapper()
{
close();
}
QHash may call node destructor during insertion, for example.
