Loading...

XML

Word

Printable

Type: Bug
Resolution: Fixed
Priority: P2: Important
Fix Version/s: None
Affects Version/s: 6.3.0
Component/s: Core: QtConcurrent
Labels:
None

Story Points:
8
Sprint:
Foundation Sprint 61, Foundation Sprint 62

TSAN support was recently added to Qt Core.

Running Qt Creator with Thread Sanitizer reports multiple issues in QtConcurrent, with the following summaries:

SUMMARY: ThreadSanitizer: data race on vptr (ctor/dtor vs virtual call) /usr/local/Qt-6.4.0/include/QtConcurrent/qtconcurrentmapkernel.h:94 in QtConcurrent::MappedReducedKernel<QList<TextEditor::HighlightingResult>, QList<LanguageClient::ExpandedSemanticToken>::const_iterator, std::function<TextEditor::HighlightingResult (LanguageClient::ExpandedSemanticToken const&)>, QtPrivate::PushBackWrapper, QtConcurrent::ReduceKernel<QtPrivate::PushBackWrapper, QList<TextEditor::HighlightingResult>, TextEditor::HighlightingResult> >::~MappedReducedKernel()

SUMMARY: ThreadSanitizer: data race /usr/local/Qt-6.4.0/include/QtConcurrent/qtconcurrentmapkernel.h:163 in QtConcurrent::MappedReducedKernel<QList<TextEditor::HighlightingResult>, QList<LanguageClient::ExpandedSemanticToken>::const_iterator, std::function<TextEditor::HighlightingResult (LanguageClient::ExpandedSemanticToken const&)>, QtPrivate::PushBackWrapper, QtConcurrent::ReduceKernel<QtPrivate::PushBackWrapper, QList<TextEditor::HighlightingResult>, TextEditor::HighlightingResult> >::shouldThrottleThread()

SUMMARY: ThreadSanitizer: data race /usr/local/Qt-6.4.0/include/QtConcurrent/qtconcurrentreducekernel.h:155 in QtConcurrent::ReduceKernel<QtPrivate::PushBackWrapper, QList<TextEditor::HighlightingResult>, TextEditor::HighlightingResult>::runReduce(QtPrivate::PushBackWrapper&, QList<TextEditor::HighlightingResult>&, QtConcurrent::IntermediateResults<TextEditor::HighlightingResult> const&)

More details can be found in tsan_report8.txt.tgz.