Details
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Bug
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Resolution: Done
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P1: Critical
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5.12.0 Beta 3
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None
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Ubuntu 18.04 64bit, KDE Plasma 5.14
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All
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018df56aa6804908bcdf5c4f380c1fe9366ce324 (qt/qtquickcontrols2/5.12.0)
Description
At startup, my application segfaults with Qt 5.12.0 (any version)
It never happened before with any of the previous Qt 5 versions.
I tried to debug the exact point where it segfaults but I couldn't find the precise spot. It is somewhere in the QML engine.
Following the main thread trace. Attached the full stack trace exported from Qt Creator.
Worth to mention that I see a ton of warnings related to QQuickAbstractDialog, as mentioned in https://bugreports.qt.io/browse/QTBUG-70374
1 QQuickItem::setParentItem qquickitem.cpp 2696 0x7ffff74ee251 2 QQuickPage::setFooter qquickpage.cpp 347 0x7fffa3ae38e5 3 QQuickDialog::setFooter qquickdialog.cpp 317 0x7fffa3acfe22 4 QQuickDialog::qt_static_metacall moc_qquickdialog_p.cpp 403 0x7fffa3b1b3b8 5 QQmlPropertyData::writeProperty qqmlpropertycache_p.h 346 0x7ffff4ae99c6 6 QObjectPointerBinding::write qqmlbinding.cpp 701 0x7ffff4ae99c6 7 QQmlNonbindingBinding::doUpdate qqmlbinding.cpp 249 0x7ffff4aeb39c 8 QQmlBinding::update qqmlbinding.cpp 185 0x7ffff4ae7f33 9 QQmlObjectCreator::finalize qqmlobjectcreator.cpp 1346 0x7ffff4af4cd1 10 QQmlComponentPrivate::complete qqmlcomponent.cpp 923 0x7ffff4a7b3c7 11 QQmlComponentPrivate::completeCreate qqmlcomponent.cpp 959 0x7ffff4a7b4e2 12 QQmlComponent::create qqmlcomponent.cpp 785 0x7ffff4a7b2da 13 QQuickView::continueExecute qquickview.cpp 477 0x7ffff75927bf 14 QQuickViewPrivate::execute qquickview.cpp 107 0x7ffff7592bff 15 App::startup app.cpp 173 0x5555555986d0 16 main main.cpp 106 0x555555596552