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Details

Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 5.15.4, 6.0.4, 6.1.0 RC, 6.1, 6.2.0 Alpha
Affects Version/s: 5.15.3
Component/s: Quick: Core Declarative QML
Labels:
- Reported_by_support_standard
- earmarked_by_ulf
Environment:
macOS 10.15

Commits:
d0d4cc528ba9e3c39c15a2292066dac1d457abd5 (qt/qtdeclarative/dev) 81c2da0c7ccc361e3cc2206d30aaeb55065a5352 (qt/qtdeclarative/6.1) 06aca6a1d5f4bad74bb5d3d82025ffd789557a05 (qt/qtdeclarative/6.0) 4a5b989755 (qt/tqtc-qtdeclarative/5.15-opensource)

Description

When the cache for a QML file is generated and then loaded it will cause a crash. If the application is restarted afterwards then it is fine, modifying MessageDialog.qml in the example is enough to get it to crash again. The stack is:

Thread 5 Crashed:: QQmlThread
0   org.qt-project.QtQml          	0x000000010f0ccc40 QQmlType::lookupInlineComponentIdByName(QString const&) const + 32
1   org.qt-project.QtQml          	0x000000010f0827fb QQmlTypeData::done() + 539
2   org.qt-project.QtQml          	0x000000010f076d8f QQmlDataBlob::tryDone() + 63
3   org.qt-project.QtQml          	0x000000010f0d15c5 QQmlTypeLoader::setData(QQmlDataBlob*, QQmlDataBlob::SourceCodeData const&) + 149
4   org.qt-project.QtQml          	0x000000010f0d0e1b QQmlTypeLoader::setData(QQmlDataBlob*, QString const&) + 107
5   org.qt-project.QtQml          	0x000000010f0d0c52 QQmlTypeLoader::loadThread(QQmlDataBlob*) + 338
6   org.qt-project.QtQml          	0x000000010f0910c2 QQmlTypeLoaderThread::loadThread(QQmlDataBlob*) + 18
7   org.qt-project.QtQml          	0x000000010f1457be QQmlThreadPrivate::threadEvent() + 126
8   org.qt-project.QtQml          	0x000000010f145730 QQmlThreadPrivate::event(QEvent*) + 32
9   org.qt-project.QtCore         	0x000000010f70b888 QCoreApplicationPrivate::notify_helper(QObject*, QEvent*) + 88
10  org.qt-project.QtCore         	0x000000010f70b536 QCoreApplication::notifyInternal2(QObject*, QEvent*) + 166
11  org.qt-project.QtCore         	0x000000010f70c673 QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) + 803
12  org.qt-project.QtCore         	0x000000010f76a779 QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 73
13  org.qt-project.QtCore         	0x000000010f707937 QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 471
14  org.qt-project.QtCore         	0x000000010f544b33 QThread::exec() + 131
15  org.qt-project.QtQml          	0x000000010f145849 QQmlThreadPrivate::run() + 57
16  org.qt-project.QtCore         	0x000000010f545a49 QThreadPrivate::start(void*) + 329
17  libsystem_pthread.dylib       	0x00007fff6c682109 _pthread_start + 148
18  libsystem_pthread.dylib       	0x00007fff6c67db8b thread_start + 15