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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6.4.2, 6.4
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None
Description
When closing an application created with Qt 6.4.2 we sporadically encounter segmentation faults:
Assert: QFontDatabase: Must construct a QGuiApplication before accessing QFontDatabase Please report this problem to our support. Program: a3c, Release: 22.10i, Build: 12084912, Tag: auto/2022/12/06/1324 Backtrace (please include this in your support request): 0# Ur::MessageHandler::print(Ur::Message&) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/a3c 1# 0x0000558074BDB9FE in /makefactory/products/master/release/linux64/a3_c_12084912/bin/a3c 2# 0x0000558074BABA34 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/a3c 3# 0x000014D9B0A86EDE in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 4# 0x000014D9B0A82FCC in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 5# QMessageLogger::fatal(char const*, ...) const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 6# QFontDatabasePrivate::ensureFontDatabase() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 7# QFontDatabasePrivate::findFont(QFontDef const&, int, bool) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 8# QFontDatabasePrivate::load(QFontPrivate const*, int) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 9# QFontPrivate::engineForScript(int) const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 10# QFontInfo::fixedPitch() const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 11# QTextMarkdownWriter::writeBlock(QTextBlock const&, bool, bool, bool) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 12# QTextMarkdownWriter::writeFrame(QTextFrame const*) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 13# QTextMarkdownWriter::writeAll(QTextDocument const*) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 14# QTextDocument::toMarkdown(QFlags<QTextDocument::MarkdownFeature>) const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 15# QTextDocumentFragment::toMarkdown(QFlags<QTextDocument::MarkdownFeature>) const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 16# 0x000014D9B1F7A554 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Widgets.so.6 17# 0x000014D9B1F7A42C in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Widgets.so.6 18# 0x000014D9B0B1DF44 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 19# QMimeData::data(QString const&) const in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 20# QInternalMimeData::renderDataHelper(QString const&, QMimeData const*) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 21# 0x000014D9ADA528D4 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 22# 0x000014D9ADA26AA0 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 23# 0x000014D9ADA2721A in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 24# QXcbConnection::handleXcbEvent(xcb_generic_event_t*) in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 25# 0x000014D9ADA26127 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 26# 0x000014D9ADA25EBB in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 27# 0x000014D9ADA2619E in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 28# QXcbConnection::~QXcbConnection() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 29# QXcbConnection::~QXcbConnection() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 30# QXcbIntegration::~QXcbIntegration() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 31# QXcbIntegration::~QXcbIntegration() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/plugins/platforms/../../libQt6XcbQpa.so.6 32# QGuiApplicationPrivate::~QGuiApplicationPrivate() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 33# QApplicationPrivate::~QApplicationPrivate() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Widgets.so.6 34# QObject::~QObject() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Core.so.6 35# QGuiApplication::~QGuiApplication() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Gui.so.6 36# QApplication::~QApplication() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Widgets.so.6 37# QApplication::~QApplication() in /makefactory/products/master/release/linux64/a3_c_12084912/bin/libQt6Widgets.so.6 38# main in /makefactory/products/master/release/linux64/a3_c_12084912/bin/a3c 39# 0x000014D9AE78D290 in /usr/lib/libc.so.6 40# __libc_start_main in /usr/lib/libc.so.6 41# 0x0000558074426EE9 in /makefactory/products/master/release/linux64/a3_c_12084912/bin/a3c
Attachments
Issue Links
- relates to
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QTBUG-99676 markdown (and html) import/export should not rely on use of a fixed-pitched font to remember a `monospace` span
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- Closed
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