Details
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Bug
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Resolution: Unresolved
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P2: Important
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None
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6.6, dev
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None
Description
This can be observed on some of the tests in the qtscxml submodule, but I also created a standalone reproducer.
Running the attached example shows something like this:
Indirect leak of 48 byte(s) in 1 object(s) allocated from: #0 0x7f82edebf91f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:69 #1 0x7f82e5487d12 in allocateData /home/ivan/qt5/qtbase/src/corelib/tools/qarraydata.cpp:139 #2 0x7f82e54880b5 in TestQtNamespace::QArrayData::allocate(TestQtNamespace::QArrayData**, long long, long long, long long, TestQtNamespace::QArrayData::AllocationOption) /home/ivan/qt5/qtbase/src/corelib/tools/qarraydata.cpp:189 #3 0x7f82e53df2ee in TestQtNamespace::QTypedArrayData<char16_t>::allocate(long long, TestQtNamespace::QArrayData::AllocationOption) (/home/ivan/qt6-build/debug/qtbase/lib/libQt6Core.so.6+0x7df2ee) #4 0x7f82e53954b0 in TestQtNamespace::QString::QString(TestQtNamespace::QChar const*, long long) /home/ivan/qt5/qtbase/src/corelib/text/qstring.cpp:2494 #5 0x7f82e84aeb56 in TestQtNamespace::QStringView::toString() const (/home/ivan/qt6-build/debug/qtbase/lib/libQt6Scxml.so.6+0xaeb56) #6 0x7f82e849c66f in TestQtNamespace::QScxmlCompilerPrivate::preReadElementSend() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:1793 #7 0x7f82e84a5028 in TestQtNamespace::QScxmlCompilerPrivate::readElement() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2200 #8 0x7f82e84a593c in TestQtNamespace::QScxmlCompilerPrivate::readElement() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2221 #9 0x7f82e84a593c in TestQtNamespace::QScxmlCompilerPrivate::readElement() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2221 #10 0x7f82e84a593c in TestQtNamespace::QScxmlCompilerPrivate::readElement() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2221 #11 0x7f82e84a593c in TestQtNamespace::QScxmlCompilerPrivate::readElement() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2221 #12 0x7f82e84a3998 in TestQtNamespace::QScxmlCompilerPrivate::readDocument() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:2115 #13 0x7f82e8484b6f in TestQtNamespace::QScxmlCompiler::compile() /home/ivan/qt5/qtscxml/src/scxml/qscxmlcompiler.cpp:777 #14 0x7f82e8548f77 in TestQtNamespace::QScxmlStateMachine::fromData(TestQtNamespace::QIODevice*, TestQtNamespace::QString const&) /home/ivan/qt5/qtscxml/src/scxml/qscxmlstatemachine.cpp:1421 #15 0x7f82eddae98c in TestQtNamespace::QScxmlStateMachineLoader::parse(TestQtNamespace::QUrl const&) /home/ivan/qt5/qtscxml/src/scxmlqml/statemachineloader.cpp:175 #16 0x7f82eddac932 in TestQtNamespace::QScxmlStateMachineLoader::setSource(TestQtNamespace::QUrl const&) /home/ivan/qt5/qtscxml/src/scxmlqml/statemachineloader.cpp:75 #17 0x7f82edd769f4 in TestQtNamespace::QScxmlStateMachineLoader::qt_static_metacall(TestQtNamespace::QObject*, TestQtNamespace::QMetaObject::Call, int, void**) /home/ivan/qt6-build/debug/qtscxml/src/scxmlqml/ScxmlQml_autogen/EWIEGA46WW/moc_statemachineloader_p.cpp:197 #18 0x7f82edd771a7 in TestQtNamespace::QScxmlStateMachineLoader::qt_metacall(TestQtNamespace::QMetaObject::Call, int, void**) /home/ivan/qt6-build/debug/qtscxml/src/scxmlqml/ScxmlQml_autogen/EWIEGA46WW/moc_statemachineloader_p.cpp:246 #19 0x7f82e7476801 in void TestQtNamespace::QQmlPropertyData::doMetacall<(TestQtNamespace::QMetaObject::Call)2>(TestQtNamespace::QObject*, int, void**) const /home/ivan/qt6-build/debug/qtbase/include/QtQml/6.7.0/QtQml/private/../../../../../../../../qt5/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:329 #20 0x7f82e74756bb in TestQtNamespace::QQmlPropertyData::writeProperty(TestQtNamespace::QObject*, void*, TestQtNamespace::QFlags<TestQtNamespace::QQmlPropertyData::WriteFlag>) const /home/ivan/qt6-build/debug/qtbase/include/QtQml/6.7.0/QtQml/private/../../../../../../../../qt5/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:347 #21 0x7f82e7471a87 in operator() /home/ivan/qt5/qtdeclarative/src/qml/qml/qqml.cpp:1106 #22 0x7f82e7473fad in changeObjectProperty<false, TestQtNamespace::QQmlPrivate::storeObjectProperty<>(TestQtNamespace::QV4::Lookup*, TestQtNamespace::QObject*, void*)::<lambda(const TestQtNamespace::QQmlPropertyData*)> > /home/ivan/qt5/qtdeclarative/src/qml/qml/qqml.cpp:1090 #23 0x7f82e7471bce in storeObjectProperty<> /home/ivan/qt5/qtdeclarative/src/qml/qml/qqml.cpp:1105 #24 0x7f82e7470137 in TestQtNamespace::QQmlPrivate::AOTCompiledContext::setObjectLookup(unsigned int, TestQtNamespace::QObject*, void*) const /home/ivan/qt5/qtdeclarative/src/qml/qml/qqml.cpp:2199 #25 0x5566187eb5e5 in QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::aotBuiltFunctions::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, TestQtNamespace::QQmlPrivate::AOTCompiledContext const**)#1}::operator()(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*) const::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, void*)#1}::operator()(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, void*) const /home/ivan/Projects/build-QScxmlCompilerMemleak-Qt_dev-Debug/.rcc/qmlcache/appQScxmlCompilerMemleak_Main_qml.cpp:260 #26 0x5566187eba7d in void QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::wrapCall<QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::aotBuiltFunctions::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, TestQtNamespace::QQmlPrivate::AOTCompiledContext const**)#1}::operator()(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*) const::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, void*)#1}>(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::aotBuiltFunctions::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, TestQtNamespace::QQmlPrivate::AOTCompiledContext const**)#1}::operator()(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*) const::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, void*)#1}&&) /home/ivan/Projects/build-QScxmlCompilerMemleak-Qt_dev-Debug/.rcc/qmlcache/appQScxmlCompilerMemleak_Main_qml.cpp:225 #27 0x5566187eb7db in QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::aotBuiltFunctions::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, TestQtNamespace::QQmlPrivate::AOTCompiledContext const**)#1}::operator()(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*) const /home/ivan/Projects/build-QScxmlCompilerMemleak-Qt_dev-Debug/.rcc/qmlcache/appQScxmlCompilerMemleak_Main_qml.cpp:238 #28 0x5566187eb862 in QmlCacheGeneratedCode::_0x5f_QScxmlCompilerMemleak_Main_qml::aotBuiltFunctions::{lambda(TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*, TestQtNamespace::QQmlPrivate::AOTCompiledContext const**)#1}::_FUN(TestQtNamespace::QQmlPrivate::AOTCompiledContext const, TestQtNamespace::QQmlPrivate::AOTCompiledContext const*, void*) /home/ivan/Projects/build-QScxmlCompilerMemleak-Qt_dev-Debug/.rcc/qmlcache/appQScxmlCompilerMemleak_Main_qml.cpp:271 #29 0x7f82e738759f in TestQtNamespace::QV4::Moth::VME::exec(TestQtNamespace::QV4::MetaTypesStackFrame*, TestQtNamespace::QV4::ExecutionEngine*) /home/ivan/qt5/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:503
The full ASAN log is in the attachment, as well as the standalone project.
Attachments
Issue Links
- resulted from
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QTBUG-116542 [QtScxml] Fix all binding loops caused by misuse of bindable properties
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- Closed
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