Port to new connections syntax #5
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Hi, KDE doesn't use GitHub for development. A fix already exists on invent.kde.org, but as it breaks compatibility with older Qt releases which are still supported by the KDE Frameworks, it will still take some time until it can be merged. |
|
Hi, thank you for the answer. Okay, I will follow invent.kde.org for future bugs and updates. Regards, Marc |
kdesysadmin
pushed a commit
that referenced
this pull request
Sep 25, 2024
When a quick item is being destroyed, it will emit windowChanged signal
which PlatformTheme connects to. This can causes a crash when the style
option of the quick item is already deleted but the colorsChanged signal
still tries to assign a new palette to the style option.
```
AddressSanitizer:DEADLYSIGNAL
=================================================================
==16652==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000030 (pc 0x7fa13639083b bp 0x7ffcad9111f0 sp 0x7ffcad911180 T0)
==16652==The signal is caused by a READ memory access.
==16652==Hint: address points to the zero page.
#0 0x7fa13639083b in std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<QPalette::ColorGroup> >, std::is_move_constructible<QPalette::ColorGroup>, std::is_move_assignable<QPalette::ColorGroup> >::value, void>::type std::swap<QPalette::ColorGroup>(QPalette::ColorGroup&, QPalette::ColorGroup&) /usr/include/c++/14/bits/move.h:221
#1 0x7fa13638b12c in QPalette::swap(QPalette&) /usr/include/qt6/QtGui/qpalette.h:41
#2 0x7fa13638b0d6 in QPalette::operator=(QPalette&&) /usr/include/qt6/QtGui/qpalette.h:37
#3 0x7fa1363426ee in operator() /builds/frameworks/qqc2-desktop-style/plugin/kquickstyleitem.cpp:175
#4 0x7fa13637d120 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#5 0x7fa13637cfee in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#6 0x7fa13637ce29 in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#7 0x7fa18b657ade (/lib64/libQt6Core.so.6+0x1ecade) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#8 0x7fa1445e2ac9 in Kirigami::Platform::PlatformTheme::colorsChanged() /builds/frameworks/kirigami/_build/src/platform/KirigamiPlatform_autogen/include/moc_platformtheme.cpp:531
#9 0x7fa1445db7d6 in Kirigami::Platform::PlatformTheme::emitSignalsForChanges(int) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:883
#10 0x7fa1445ddc83 in Kirigami::Platform::PlatformThemeChangeTracker::~PlatformThemeChangeTracker() /builds/frameworks/kirigami/src/platform/platformtheme.cpp:1052
#11 0x7fa1445e94e2 in Kirigami::Platform::PlatformThemePrivate::setDataColor(Kirigami::Platform::PlatformTheme*, Kirigami::Platform::PlatformThemeData::ColorRole, QColor const&) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:347
#12 0x7fa1445d9135 in Kirigami::Platform::PlatformTheme::setTextColor(QColor const&) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:556
#13 0x7fa14a6fc555 in PlasmaDesktopTheme::syncColors() /builds/frameworks/qqc2-desktop-style/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp:294
#14 0x7fa14a6fd812 in PlasmaDesktopTheme::event(QEvent*) /builds/frameworks/qqc2-desktop-style/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp:323
#15 0x7fa19281989d in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt6Widgets.so.6+0x1c489d) (BuildId: 9f6bf5a66eec5ecad15a389c3f9c5c7217e59b98)
#16 0x7fa18b5fde97 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt6Core.so.6+0x192e97) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#17 0x7fa1445dd177 in Kirigami::Platform::PlatformTheme::update() /builds/frameworks/kirigami/src/platform/platformtheme.cpp:994
#18 0x7fa144606d09 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Kirigami::Platform::PlatformTheme::*)()>::call(void (Kirigami::Platform::PlatformTheme::*)(), Kirigami::Platform::PlatformTheme*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#19 0x7fa1446032f9 in void QtPrivate::FunctionPointer<void (Kirigami::Platform::PlatformTheme::*)()>::call<QtPrivate::List<>, void>(void (Kirigami::Platform::PlatformTheme::*)(), Kirigami::Platform::PlatformTheme*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#20 0x7fa1445fe98c in QtPrivate::QCallableObject<void (Kirigami::Platform::PlatformTheme::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#21 0x7fa18b657ade (/lib64/libQt6Core.so.6+0x1ecade) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#22 0x7fa18cb09e91 in QQuickItem::windowChanged(QQuickWindow*) (/lib64/libQt6Quick.so.6+0x231e91) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#23 0x7fa18cafdab4 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) (/lib64/libQt6Quick.so.6+0x225ab4) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#24 0x7fa18cafdee6 in QQuickItemPrivate::derefWindow() (/lib64/libQt6Quick.so.6+0x225ee6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#25 0x7fa18caf45d6 in QQuickItem::setParentItem(QQuickItem*) (/lib64/libQt6Quick.so.6+0x21c5d6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#26 0x7fa18caf486c in QQuickItem::~QQuickItem() (/lib64/libQt6Quick.so.6+0x21c86c) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#27 0x7fa136342506 in KQuickStyleItem::~KQuickStyleItem() /builds/frameworks/qqc2-desktop-style/plugin/kquickstyleitem.cpp:165
#28 0x7fa13633f500 in QQmlPrivate::QQmlElement<KQuickStyleItem>::~QQmlElement() /usr/include/qt6/QtQml/qqmlprivate.h:100
#29 0x7fa13633f565 in QQmlPrivate::QQmlElement<KQuickStyleItem>::~QQmlElement() /usr/include/qt6/QtQml/qqmlprivate.h:100
#30 0x7fa19db75e86 in QQmlTableInstanceModel::destroyModelItem(QQmlDelegateModelItem*, QQmlTableInstanceModel::DestructionMode) (/lib64/libQt6QmlModels.so.6+0x43e86) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#31 0x7fa19dbb5225 (/lib64/libQt6QmlModels.so.6+0x83225) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#32 0x7fa19db73e9d in QQmlTableInstanceModel::drainReusableItemsPool(int) (/lib64/libQt6QmlModels.so.6+0x41e9d) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#33 0x7fa18cdc10a3 in QQuickTableView::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x4e90a3) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#34 0x7fa18cb03cc6 in QQuickItem::setImplicitWidth(double) (/lib64/libQt6Quick.so.6+0x22bcc6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#35 0x7fa18c5eb793 (/lib64/libQt6Qml.so.6+0x28d793) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#36 0x7fa18c5fff2b (/lib64/libQt6Qml.so.6+0x2a1f2b) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#37 0x7fa18c6034ec in QQmlBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&) (/lib64/libQt6Qml.so.6+0x2a54ec) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#38 0x7fa18c5fb3f3 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) (/lib64/libQt6Qml.so.6+0x29d3f3) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#39 0x7fa18ce660fa (/lib64/libQt6Quick.so.6+0x58e0fa) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#40 0x7fa18cb0e0a3 (/lib64/libQt6Quick.so.6+0x2360a3) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#41 0x7fa18caf6e46 in QQuickItem::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x21ee46) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#42 0x7fa18cae0399 in QQuickFlickable::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x208399) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#43 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#44 0x7fa17e28b0d8 in QQuickControlPrivate::resizeContent() (/lib64/libQt6QuickTemplates2.so.6+0x1050d8) (BuildId: 7c6282faf8f2b320e8953d270d4b645d6a5f2483)
#45 0x7fa17e2835d5 in QQuickControl::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6QuickTemplates2.so.6+0xfd5d5) (BuildId: 7c6282faf8f2b320e8953d270d4b645d6a5f2483)
#46 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#47 0x7fa14175a03c (/lib64/libQt6QuickLayouts.so.6+0x2403c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#48 0x7fa18bf7c0ea in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) (/lib64/libQt6Gui.so.6+0x4d20ea) (BuildId: ff7f0a31774cc86be95eb627cc16c43cce71c6a1)
#49 0x7fa14175a54c in QQuickGridLayoutBase::rearrange(QSizeF const&) (/lib64/libQt6QuickLayouts.so.6+0x2454c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#50 0x7fa141755379 in QQuickLayout::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6QuickLayouts.so.6+0x1f379) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#51 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#52 0x7fa14175a03c (/lib64/libQt6QuickLayouts.so.6+0x2403c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#53 0x7fa18bf7c0ea in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) (/lib64/libQt6Gui.so.6+0x4d20ea) (BuildId: ff7f0a31774cc86be95eb627cc16c43cce71c6a1)
#54 0x7fa14175a54c in QQuickGridLayoutBase::rearrange(QSizeF const&) (/lib64/libQt6QuickLayouts.so.6+0x2454c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#55 0x7fa14175694b in QQuickLayout::updatePolish() (/lib64/libQt6QuickLayouts.so.6+0x2094b) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#56 0x7fa18cb9e101 in QQuickWindowPrivate::polishItems() (/lib64/libQt6Quick.so.6+0x2c6101) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#57 0x7fa18cd53eee (/lib64/libQt6Quick.so.6+0x47beee) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#58 0x7fa18cba4300 in QQuickWindow::event(QEvent*) (/lib64/libQt6Quick.so.6+0x2cc300) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#59 0x7fa19281989d in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt6Widgets.so.6+0x1c489d) (BuildId: 9f6bf5a66eec5ecad15a389c3f9c5c7217e59b98)
#60 0x7fa18b5fde97 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt6Core.so.6+0x192e97) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#61 0x7fa18bcd29b0 in QPlatformWindow::deliverUpdateRequest() (/lib64/libQt6Gui.so.6+0x2289b0) (BuildId: ff7f0a31774cc86be95eb627cc16c43cce71c6a1)
#62 0x7fa18b640caa in QObject::event(QEvent*) (/lib64/libQt6Core.so.6+0x1d5caa) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#63 0x7fa19281989d in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt6Widgets.so.6+0x1c489d) (BuildId: 9f6bf5a66eec5ecad15a389c3f9c5c7217e59b98)
#64 0x7fa18b5fde97 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt6Core.so.6+0x192e97) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#65 0x7fa18b5fe20f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/lib64/libQt6Core.so.6+0x19320f) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#66 0x7fa18b840792 (/lib64/libQt6Core.so.6+0x3d5792) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#67 0x7fa191310fb7 (/lib64/libglib-2.0.so.0+0x5dfb7) (BuildId: 9b58710d8f17aa9f5541f04b5435bbf8b4322f69)
#68 0x7fa191312d37 (/lib64/libglib-2.0.so.0+0x5fd37) (BuildId: 9b58710d8f17aa9f5541f04b5435bbf8b4322f69)
#69 0x7fa1913133eb in g_main_context_iteration (/lib64/libglib-2.0.so.0+0x603eb) (BuildId: 9b58710d8f17aa9f5541f04b5435bbf8b4322f69)
#70 0x7fa18b83e27e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt6Core.so.6+0x3d327e) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#71 0x7fa18b609a7a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt6Core.so.6+0x19ea7a) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#72 0x7fa18b601b03 in QCoreApplication::exec() (/lib64/libQt6Core.so.6+0x196b03) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#73 0x66de68 in main /builds/plasma/plasma-workspace/shell/main.cpp:188
#74 0x7fa18b03633f in __libc_start_call_main (/lib64/libc.so.6+0x2a33f) (BuildId: b9cf52933b9968ed778c3a60dd03d2c3e18313f2)
#75 0x7fa18b036408 in __libc_start_main_alias_2 (/lib64/libc.so.6+0x2a408) (BuildId: b9cf52933b9968ed778c3a60dd03d2c3e18313f2)
#76 0x6015e4 in _start ../sysdeps/x86_64/start.S:115
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /usr/include/c++/14/bits/move.h:221 in std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<QPalette::ColorGroup> >, std::is_move_constructible<QPalette::ColorGroup>, std::is_move_assignable<QPalette::ColorGroup> >::value, void>::type std::swap<QPalette::ColorGroup>(QPalette::ColorGroup&, QPalette::ColorGroup&)
==16652==ABORTING
```
kdesysadmin
pushed a commit
that referenced
this pull request
Oct 1, 2024
When a quick item is being destroyed, it will emit windowChanged signal
which PlatformTheme connects to. This can causes a crash when the style
option of the quick item is already deleted but the colorsChanged signal
still tries to assign a new palette to the style option.
```
AddressSanitizer:DEADLYSIGNAL
=================================================================
==16652==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000030 (pc 0x7fa13639083b bp 0x7ffcad9111f0 sp 0x7ffcad911180 T0)
==16652==The signal is caused by a READ memory access.
==16652==Hint: address points to the zero page.
#0 0x7fa13639083b in std::enable_if<std::__and_<std::__not_<std::__is_tuple_like<QPalette::ColorGroup> >, std::is_move_constructible<QPalette::ColorGroup>, std::is_move_assignable<QPalette::ColorGroup> >::value, void>::type std::swap<QPalette::ColorGroup>(QPalette::ColorGroup&, QPalette::ColorGroup&) /usr/include/c++/14/bits/move.h:221
#1 0x7fa13638b12c in QPalette::swap(QPalette&) /usr/include/qt6/QtGui/qpalette.h:41
#2 0x7fa13638b0d6 in QPalette::operator=(QPalette&&) /usr/include/qt6/QtGui/qpalette.h:37
#3 0x7fa1363426ee in operator() /builds/frameworks/qqc2-desktop-style/plugin/kquickstyleitem.cpp:175
#4 0x7fa13637d120 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#5 0x7fa13637cfee in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#6 0x7fa13637ce29 in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#7 0x7fa18b657ade (/lib64/libQt6Core.so.6+0x1ecade) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#8 0x7fa1445e2ac9 in Kirigami::Platform::PlatformTheme::colorsChanged() /builds/frameworks/kirigami/_build/src/platform/KirigamiPlatform_autogen/include/moc_platformtheme.cpp:531
#9 0x7fa1445db7d6 in Kirigami::Platform::PlatformTheme::emitSignalsForChanges(int) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:883
#10 0x7fa1445ddc83 in Kirigami::Platform::PlatformThemeChangeTracker::~PlatformThemeChangeTracker() /builds/frameworks/kirigami/src/platform/platformtheme.cpp:1052
#11 0x7fa1445e94e2 in Kirigami::Platform::PlatformThemePrivate::setDataColor(Kirigami::Platform::PlatformTheme*, Kirigami::Platform::PlatformThemeData::ColorRole, QColor const&) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:347
#12 0x7fa1445d9135 in Kirigami::Platform::PlatformTheme::setTextColor(QColor const&) /builds/frameworks/kirigami/src/platform/platformtheme.cpp:556
#13 0x7fa14a6fc555 in PlasmaDesktopTheme::syncColors() /builds/frameworks/qqc2-desktop-style/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp:294
#14 0x7fa14a6fd812 in PlasmaDesktopTheme::event(QEvent*) /builds/frameworks/qqc2-desktop-style/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp:323
#15 0x7fa19281989d in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt6Widgets.so.6+0x1c489d) (BuildId: 9f6bf5a66eec5ecad15a389c3f9c5c7217e59b98)
#16 0x7fa18b5fde97 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt6Core.so.6+0x192e97) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#17 0x7fa1445dd177 in Kirigami::Platform::PlatformTheme::update() /builds/frameworks/kirigami/src/platform/platformtheme.cpp:994
#18 0x7fa144606d09 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Kirigami::Platform::PlatformTheme::*)()>::call(void (Kirigami::Platform::PlatformTheme::*)(), Kirigami::Platform::PlatformTheme*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#19 0x7fa1446032f9 in void QtPrivate::FunctionPointer<void (Kirigami::Platform::PlatformTheme::*)()>::call<QtPrivate::List<>, void>(void (Kirigami::Platform::PlatformTheme::*)(), Kirigami::Platform::PlatformTheme*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#20 0x7fa1445fe98c in QtPrivate::QCallableObject<void (Kirigami::Platform::PlatformTheme::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#21 0x7fa18b657ade (/lib64/libQt6Core.so.6+0x1ecade) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
#22 0x7fa18cb09e91 in QQuickItem::windowChanged(QQuickWindow*) (/lib64/libQt6Quick.so.6+0x231e91) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#23 0x7fa18cafdab4 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) (/lib64/libQt6Quick.so.6+0x225ab4) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#24 0x7fa18cafdee6 in QQuickItemPrivate::derefWindow() (/lib64/libQt6Quick.so.6+0x225ee6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#25 0x7fa18caf45d6 in QQuickItem::setParentItem(QQuickItem*) (/lib64/libQt6Quick.so.6+0x21c5d6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#26 0x7fa18caf486c in QQuickItem::~QQuickItem() (/lib64/libQt6Quick.so.6+0x21c86c) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#27 0x7fa136342506 in KQuickStyleItem::~KQuickStyleItem() /builds/frameworks/qqc2-desktop-style/plugin/kquickstyleitem.cpp:165
#28 0x7fa13633f500 in QQmlPrivate::QQmlElement<KQuickStyleItem>::~QQmlElement() /usr/include/qt6/QtQml/qqmlprivate.h:100
#29 0x7fa13633f565 in QQmlPrivate::QQmlElement<KQuickStyleItem>::~QQmlElement() /usr/include/qt6/QtQml/qqmlprivate.h:100
#30 0x7fa19db75e86 in QQmlTableInstanceModel::destroyModelItem(QQmlDelegateModelItem*, QQmlTableInstanceModel::DestructionMode) (/lib64/libQt6QmlModels.so.6+0x43e86) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#31 0x7fa19dbb5225 (/lib64/libQt6QmlModels.so.6+0x83225) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#32 0x7fa19db73e9d in QQmlTableInstanceModel::drainReusableItemsPool(int) (/lib64/libQt6QmlModels.so.6+0x41e9d) (BuildId: 58984efcd9008b78aa05e7bc535f7bd970db97a3)
#33 0x7fa18cdc10a3 in QQuickTableView::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x4e90a3) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#34 0x7fa18cb03cc6 in QQuickItem::setImplicitWidth(double) (/lib64/libQt6Quick.so.6+0x22bcc6) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#35 0x7fa18c5eb793 (/lib64/libQt6Qml.so.6+0x28d793) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#36 0x7fa18c5fff2b (/lib64/libQt6Qml.so.6+0x2a1f2b) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#37 0x7fa18c6034ec in QQmlBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&) (/lib64/libQt6Qml.so.6+0x2a54ec) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#38 0x7fa18c5fb3f3 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) (/lib64/libQt6Qml.so.6+0x29d3f3) (BuildId: f6e62c1c256507fb05665d132a575c79a03df31b)
#39 0x7fa18ce660fa (/lib64/libQt6Quick.so.6+0x58e0fa) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#40 0x7fa18cb0e0a3 (/lib64/libQt6Quick.so.6+0x2360a3) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#41 0x7fa18caf6e46 in QQuickItem::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x21ee46) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#42 0x7fa18cae0399 in QQuickFlickable::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6Quick.so.6+0x208399) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#43 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#44 0x7fa17e28b0d8 in QQuickControlPrivate::resizeContent() (/lib64/libQt6QuickTemplates2.so.6+0x1050d8) (BuildId: 7c6282faf8f2b320e8953d270d4b645d6a5f2483)
#45 0x7fa17e2835d5 in QQuickControl::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6QuickTemplates2.so.6+0xfd5d5) (BuildId: 7c6282faf8f2b320e8953d270d4b645d6a5f2483)
#46 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#47 0x7fa14175a03c (/lib64/libQt6QuickLayouts.so.6+0x2403c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#48 0x7fa18bf7c0ea in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) (/lib64/libQt6Gui.so.6+0x4d20ea) (BuildId: ff7f0a31774cc86be95eb627cc16c43cce71c6a1)
#49 0x7fa14175a54c in QQuickGridLayoutBase::rearrange(QSizeF const&) (/lib64/libQt6QuickLayouts.so.6+0x2454c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#50 0x7fa141755379 in QQuickLayout::geometryChange(QRectF const&, QRectF const&) (/lib64/libQt6QuickLayouts.so.6+0x1f379) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#51 0x7fa18cb0481a in QQuickItem::setSize(QSizeF const&) (/lib64/libQt6Quick.so.6+0x22c81a) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#52 0x7fa14175a03c (/lib64/libQt6QuickLayouts.so.6+0x2403c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#53 0x7fa18bf7c0ea in QGridLayoutEngine::setGeometries(QRectF const&, QAbstractLayoutStyleInfo const*) (/lib64/libQt6Gui.so.6+0x4d20ea) (BuildId: ff7f0a31774cc86be95eb627cc16c43cce71c6a1)
#54 0x7fa14175a54c in QQuickGridLayoutBase::rearrange(QSizeF const&) (/lib64/libQt6QuickLayouts.so.6+0x2454c) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#55 0x7fa14175694b in QQuickLayout::updatePolish() (/lib64/libQt6QuickLayouts.so.6+0x2094b) (BuildId: 42940452496a72263fb8667e3486c8d85ac71889)
#56 0x7fa18cb9e101 in QQuickWindowPrivate::polishItems() (/lib64/libQt6Quick.so.6+0x2c6101) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#57 0x7fa18cd53eee (/lib64/libQt6Quick.so.6+0x47beee) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#58 0x7fa18cba4300 in QQuickWindow::event(QEvent*) (/lib64/libQt6Quick.so.6+0x2cc300) (BuildId: 0f79e6418d06df30d4d02a5215617a84a5dcf733)
#59 0x7fa19281989d in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt6Widgets.so.6+0x1c489d) (BuildId: 9f6bf5a66eec5ecad15a389c3f9c5c7217e59b98)
#60 0x7fa18b5fde97 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt6Core.so.6+0x192e97) (BuildId: aee9214d20a4f3972e90ce77c58a3a383a28d4bb)
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This solves some annoying runtime warnings with the latest Qt 5.15.0 version.
As I'm not the author of this fix, I don't know, if all connections are changed, but I would really appreciate this for the next release.