Bug 482169 - System Monitor in Plasma 6 crashes on clicking "Show Details Sidebar"
Summary: System Monitor in Plasma 6 crashes on clicking "Show Details Sidebar"
Status: RESOLVED UPSTREAM
Alias: None
Product: plasma-systemmonitor
Classification: Applications
Component: general (show other bugs)
Version: master
Platform: Other Linux
: VHI crash
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords: qt6
: 473667 482741 482922 483114 483833 484919 485751 486402 486473 487201 487461 (view as bug list)
Depends on:
Blocks:
 
Reported: 2024-03-01 16:14 UTC by Igor Mironchik
Modified: 2024-07-26 13:02 UTC (History)
30 users (show)

See Also:
Latest Commit: https://codereview.qt-project.org/c/qt/qtdeclarative/+/544750
Version Fixed In: Qt 6.7.1
Sentry Crash Report:

Attachments
Application tab (60.95 KB, image/png)
2024-03-01 16:14 UTC, Igor Mironchik 		Details
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Description Igor Mironchik 2024-03-01 16:14:13 UTC 
Created attachment 166259 [details]
Application tab

SUMMARY
System Monitor in Plasma 6 stops on clicking "Show Details Sidebar"

STEPS TO REPRODUCE
1. Launch System Monitor (Meta + Esc)
2. Switch to Applications tab.
3. Click "Show Details Sidebar"

OBSERVED RESULT
System Monitor disappears. Crashes?


EXPECTED RESULT
I don't know what here should be.


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: KDE neon 6
(available in About System)
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
Comment 1 Igor Mironchik 2024-03-01 16:16:28 UTC 
Yes, this is a crash:

igor@gmi:~$ plasma-systemmonitor 
QML debugging is enabled. Only use this in a safe environment.
qt.qml.typeresolution.cycle: Cyclic dependency detected between "qrc:/qt/qml/org/kde/desktop/private/TextFieldContextMenu.qml" and "qrc:/qt/qml/org/kde/desktop/MenuItem.qml"
qrc:/qt/qml/org/kde/ksysguard/page/EditablePage.qml?page=history.page:223:9: QML Loader: Binding loop detected for property "height"
file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/Dialog.qml:334:18: QML ScrollView: Binding loop detected for property "calculatedImplicitWidth"
file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/Dialog.qml:386:33: QML Binding: Binding loop detected for property "target"
qrc:/qt/qml/org/kde/ksysguard/page/EditablePage.qml?page=overview.page:223:9: QML Loader: Binding loop detected for property "height"
file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/Dialog.qml:334:18: QML ScrollView: Binding loop detected for property "calculatedImplicitWidth"
file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/Dialog.qml:386:33: QML Binding: Binding loop detected for property "target"
Segmentation fault
Comment 2 paninomaninodesu 2024-03-01 16:32:01 UTC 
It's true, same random crash.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE neon 6
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Comment 3 Nicolas Fella 2024-03-01 16:58:31 UTC 
#0  QQuickItem::parentItem (this=0x0) at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:2691
#1  0x00007fffe159d09a in QQuickSelectionRectanglePrivate::updateSelectionMode (this=0xe6e140)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickselectionrectangle.cpp:494
#2  0x00007fffe159e1c6 in operator() (__closure=0xe6f590) at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickselectionrectangle.cpp:540
#3  QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()> >::call
    (arg=<optimized out>, f=...) at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobjectdefs_impl.h:137
#4  QtPrivate::FunctorCallable<QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()> >::call<QtPrivate::List<>, void>
    (arg=<optimized out>, f=...) at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobjectdefs_impl.h:345
#5  QtPrivate::QCallableObject<QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0xe6f580, r=<optimized out>, a=<optimized out>, ret=<optimized out>)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobjectdefs_impl.h:555
#6  0x00007ffff4dbd143 in QtPrivate::QSlotObjectBase::call (a=0x7fffffff7cf0, r=0xe6e060, this=0xe6f580)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobjectdefs_impl.h:469
#7  doActivate<false> (sender=0xe6e060, signal_index=18, argv=0x7fffffff7cf0) at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:4060
#8  0x00007ffff69e78d0 in QQuickItemPrivate::setEffectiveEnableRecur (this=0xe43060, scope=0x0, newEffectiveEnable=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:6672
#9  0x00007ffff69e78d0 in QQuickItemPrivate::setEffectiveEnableRecur (this=0x2fab500, scope=0x0, newEffectiveEnable=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:6672
#10 0x00007ffff69e78d0 in QQuickItemPrivate::setEffectiveEnableRecur (this=0xe14d40, scope=0x0, newEffectiveEnable=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:6672
#11 0x00007ffff69e78d0 in QQuickItemPrivate::setEffectiveEnableRecur (this=0x29d47f0, scope=0x0, newEffectiveEnable=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:6672
#12 0x00007ffff69e78d0 in QQuickItemPrivate::setEffectiveEnableRecur (this=this@entry=0x2d4d360, scope=scope@entry=0x0, newEffectiveEnable=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:6672
#13 0x00007ffff69f236c in QQuickItem::setParentItem (this=this@entry=0x2c5f5f0, parentItem=parentItem@entry=0x2b7aa40)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:2783
#14 0x00007ffff6a0d2b4 in QQuickLoaderPrivate::setInitialState (this=0x2aeef80, obj=0x2c5f5f0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickloader.cpp:639
#15 0x00007ffff6533a2e in QQmlIncubatorPrivate::incubate (this=this@entry=0x1e88860, i=...) at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlincubator.cpp:321
#16 0x00007ffff6533d34 in QQmlEnginePrivate::incubate (this=0x75d700, i=<optimized out>, forContext=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlincubator.cpp:53
#17 0x00007ffff64eef45 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlcomponent.cpp:1437
#18 0x00007ffff6a0e3ff in QQuickLoaderPrivate::_q_sourceLoaded (this=0x2aeef80) at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickloader.cpp:734
#19 0x00007ffff6a0e640 in QQuickLoaderPrivate::load (this=<optimized out>) at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickloader.cpp:604
#20 0x00007ffff6a0e754 in QQuickLoader::loadFromSourceComponent (this=<optimized out>) at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickloader.cpp:476
#21 0x00007ffff6a0ef95 in QQuickLoader::setActive (this=0x2b7aa40, newVal=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickloader.cpp:315
#22 0x00007ffff64d8cf9 in QQmlPropertyData::writeProperty (flags=..., value=<optimized out>, target=<optimized out>, this=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:336
#23 GenericBinding<1>::doStore<bool> (flags=..., pd=<optimized out>, value=<optimized out>, this=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlbinding.cpp:275
#24 GenericBinding<1>::write (this=0x2b7bf80, result=..., isUndefined=<optimized out>, flags=...)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlbinding.cpp:238
#25 0x00007ffff64d34ae in QQmlBinding::doUpdate (this=0x2b7bf80, watcher=..., flags=..., scope=...)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlbinding.cpp:701
#26 0x00007ffff64d6b63 in QQmlBinding::update (this=0x2b7bf80, flags=...) at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlbinding.cpp:164
#27 0x00007ffff6561c87 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=0x0) at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:70
#28 0x00007ffff4dbcbc0 in doActivate<false> (sender=0x2106a90, signal_index=5, argv=0x0) at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:3952
#29 0x00007ffff4db481f in QMetaObject::activate (sender=sender@entry=0x2106a90, m=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:4120
--Type <RET> for more, q to quit, c to continue without paging--c
#30 0x00007ffff4db4883 in QMetaObject::activate (sender=sender@entry=0x2106a90, signal_index=signal_index@entry=9, argv=argv@entry=0x0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:4145
#31 0x00007ffff65790e7 in QQmlOpenMetaObject::metaCall (this=0x28f4140, o=0x2106a90, c=<optimized out>, id=<optimized out>, a=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlopenmetaobject.cpp:279
#32 0x00007ffff64d9dc2 in QQmlPropertyData::doMetacall<(QMetaObject::Call)2> (this=0x7fffffffa2c0, argv=0x7fffffff9f40, idx=<optimized out>, object=0x0)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:358
#33 QQmlPropertyData::writeProperty (this=this@entry=0x7fffffffa2c0, target=target@entry=0x2106a90, value=value@entry=0x7fffffffa1f0, flags=flags@entry=...)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:378
#34 0x00007ffff6588e55 in QQmlPropertyPrivate::write (object=object@entry=0x2106a90, property=..., value=..., context=..., flags=..., flags@entry=...)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlproperty.cpp:1536
#35 0x00007ffff642edd0 in QV4::QObjectWrapper::setProperty (engine=engine@entry=0x7bb0b0, object=object@entry=0x2106a90, property=0x7fffffffa2c0, value=...)
    at /home/nico/workspace/qt6/qtbase/src/corelib/global/qflags.h:73
#36 0x00007ffff642f56e in QV4::QObjectWrapper::setQmlProperty
    (engine=engine@entry=0x7bb0b0, qmlContext=..., object=0x2106a90, name=<optimized out>, flags=flags@entry=..., value=...)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:574
#37 0x00007ffff642f702 in QV4::QObjectWrapper::virtualPut (m=0x7fffe01bf538, id=..., value=..., receiver=0x7fffe01bf538)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:946
#38 0x00007ffff6409edc in QV4::Object::put (receiver=0x7fffe01bf538, v=<optimized out>, id=..., this=0x7fffe01bf538)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4object_p.h:41
#39 QV4::Object::virtualResolveLookupSetter (object=0x7fffe01bf538, engine=0x7bb0b0, lookup=0x18d0260, value=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4object.cpp:817
#40 0x00007ffff648b748 in QV4::Moth::VME::interpret (frame=0x0, frame@entry=0x7fffffffa6e0, engine=0x7bb0b0, code=0x7fffd2a69a9e "\032\b\006\324\026\006\002")
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:321
#41 0x00007ffff648fe97 in QV4::Moth::VME::exec (frame=frame@entry=0x7fffffffa6e0, engine=engine@entry=0x7bb0b0)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:487
#42 0x00007ffff63e131e in QV4::doCall
    (self=<optimized out>, thisObject=thisObject@entry=0x181fe50, argv=<optimized out>, argc=<optimized out>, context=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4function.cpp:54
#43 0x00007ffff63e1778 in QV4::Function::call
    (this=this@entry=0x181fe50, thisObject=0x181fe50, argv=argv@entry=0x7fffe01bf4f0, argc=argc@entry=1, context=context@entry=0x7fffc49d9310)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4function.cpp:79
#44 0x00007ffff63e1a5b in operator() (argc=1, argv=0x7fffe01bf4f0, thisObject=<optimized out>, __closure=<synthetic pointer>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4function.cpp:30
#45 QV4::convertAndCall<QV4::Function::call(QObject*, void**, const QMetaType*, int, QV4::ExecutionContext*)::<lambda(const QV4::Value*, const QV4::Value*, int)> >
    (call=..., argc=1, types=0x7fffffffa998, a=0x7fffffffc3e0, thisObject=0x2b7e690, engine=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4jscall_p.h:194
#46 QV4::Function::call (this=0x181fe50, thisObject=0x2b7e690, a=a@entry=0x7fffffffc3e0, types=0x7fffffffa998, argc=1, context=0x7fffc49d9310)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/jsruntime/qv4function.cpp:27
#47 0x00007ffff6537c57 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x2b7ed50, a=a@entry=0x7fffffffc3e0, types=<optimized out>, argc=argc@entry=1)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmljavascriptexpression_p.h:248
#48 0x00007ffff64df663 in QQmlBoundSignalExpression::evaluate (this=0x2b7ed50, a=a@entry=0x7fffffffc3e0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/tools/qvarlengtharray.h:85
#49 0x00007ffff64e0028 in QQmlBoundSignal_callback (e=0x2ae2ef0, a=0x7fffffffc3e0) at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/ftw/qqmlrefcount_p.h:73
#50 0x00007ffff6561c87 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=0x7fffffffc3e0)
    at /home/nico/workspace/qt6/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:70
#51 0x00007ffff4dbcbc0 in doActivate<false> (sender=0x2b7e690, signal_index=9, argv=0x7fffffffc3e0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:3952
#52 0x00007ffff4db481f in QMetaObject::activate
    (sender=sender@entry=0x2b7e690, m=m@entry=0x7fffe1626340 <QQuickAction::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7fffffffc3e0) at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qobject.cpp:4120
#53 0x00007fffe14d7972 in QQuickAction::toggled (this=this@entry=0x2b7e690, _t1=<optimized out>, _t1@entry=0x2e18850)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/QuickTemplates2_autogen/include/moc_qquickaction_p.cpp:394
#54 0x00007fffe14d88f3 in QQuickActionPrivate::trigger (this=0x2b7e760, source=0x2e18850, doToggle=false)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickaction.cpp:524
#55 0x00007fffe14d0630 in QQuickAbstractButtonPrivate::trigger (this=this@entry=0x3072c90, doubleClick=doubleClick@entry=false)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickabstractbutton.cpp:374
#56 0x00007fffe14d2cda in QQuickAbstractButtonPrivate::handleRelease (this=0x3072c90, point=..., timestamp=49018213)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickabstractbutton.cpp:186
#57 0x00007fffe14e7b6c in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quicktemplates/qquickcontrol.cpp:2017
#58 0x00007ffff69ec276 in QQuickItemPrivate::deliverPointerEvent (this=this@entry=0x3072c90, event=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:5641
#59 0x00007ffff69f17f8 in QQuickItem::event (this=0x2e18850, ev=0x7fffffffcfa0) at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickitem.cpp:9028
#60 0x00007ffff7181a61 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x2e18850, e=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtbase/src/widgets/kernel/qapplication.cpp:3285
#61 0x00007ffff4d5f5c8 in QCoreApplication::notifyInternal2 (receiver=0x2e18850, event=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qcoreapplication.cpp:1134
#62 0x00007ffff4d5f789 in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qcoreapplication.cpp:1575
#63 0x00007ffff6b9711a in QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem
    (this=this@entry=0x79ae70, item=item@entry=0x2e18850, isGrabber=isGrabber@entry=true, pointerEvent=pointerEvent@entry=0x7fffffffcfa0, handlersOnly=handlersOnly@entry=false) at /home/nico/workspace/qt6/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:2301
#64 0x00007ffff6b97cc6 in QQuickDeliveryAgentPrivate::deliverUpdatedPoints (this=this@entry=0x79ae70, event=event@entry=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:2090
#65 0x00007ffff6b98d3b in QQuickDeliveryAgentPrivate::deliverPointerEvent (this=this@entry=0x79ae70, event=event@entry=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1930
#66 0x00007ffff6b99eb7 in QQuickDeliveryAgentPrivate::handleMouseEvent (this=this@entry=0x79ae70, event=event@entry=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:1684
#67 0x00007ffff6b9ba40 in QQuickDeliveryAgent::event (this=<optimized out>, ev=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/util/qquickdeliveryagent.cpp:726
#68 0x00007ffff6a8f2f7 in QQuickWindow::event (this=<optimized out>, event=<optimized out>)
    at /home/nico/workspace/qt6/qtdeclarative/src/quick/items/qquickwindow.cpp:1530
#69 0x00007ffff7181a61 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x70bd20, e=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtbase/src/widgets/kernel/qapplication.cpp:3285
#70 0x00007ffff4d5f5c8 in QCoreApplication::notifyInternal2 (receiver=0x70bd20, event=0x7fffffffcfa0)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qcoreapplication.cpp:1134
#71 0x00007ffff4d5f799 in QCoreApplication::sendSpontaneousEvent (receiver=<optimized out>, event=<optimized out>)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qcoreapplication.cpp:1589
#72 0x00007ffff55c32eb in QGuiApplicationPrivate::processMouseEvent (e=0x7fffd4002410) at /home/nico/workspace/qt6/qtbase/src/gui/kernel/qguiapplication.cpp:2326
#73 0x00007ffff561c4ac in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /home/nico/workspace/qt6/qtbase/src/gui/kernel/qwindowsysteminterface.cpp:1114
#74 0x00007ffff5ac2340 in userEventSourceDispatch (source=<optimized out>) at /home/nico/workspace/qt6/qtbase/src/gui/platform/unix/qeventdispatcher_glib.cpp:38
#75 0x00007ffff4200e5c in g_main_dispatch (context=0x7fffdc000ef0) at ../glib/gmain.c:3476
#76 g_main_context_dispatch_unlocked (context=0x7fffdc000ef0) at ../glib/gmain.c:4284
#77 0x00007ffff425bf18 in g_main_context_iterate_unlocked.isra.0
    (context=context@entry=0x7fffdc000ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4349
#78 0x00007ffff41fead3 in g_main_context_iteration (context=0x7fffdc000ef0, may_block=1) at ../glib/gmain.c:4414
#79 0x00007ffff500b41c in QEventDispatcherGlib::processEvents (this=0x46cee0, flags=...)
    at /home/nico/workspace/qt6/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:394
#80 0x00007ffff4d6af4b in QEventLoop::exec (this=this@entry=0x7fffffffd390, flags=..., flags@entry=...)
    at /home/nico/workspace/qt6/qtbase/src/corelib/global/qflags.h:34
#81 0x00007ffff4d67932 in QCoreApplication::exec () at /home/nico/workspace/qt6/qtbase/src/corelib/global/qflags.h:74
#82 0x00007ffff55b3c0c in QGuiApplication::exec () at /home/nico/workspace/qt6/qtbase/src/gui/kernel/qguiapplication.cpp:1926
#83 0x00007ffff71819d5 in QApplication::exec () at /home/nico/workspace/qt6/qtbase/src/widgets/kernel/qapplication.cpp:2555
#84 0x000000000040c06c in main (argc=<optimized out>, argv=<optimized out>) at /home/nico/kde/src/plasma-systemmonitor/src/main.cpp:116
Comment 4 Nate Graham 2024-03-01 21:36:04 UTC 
Can also reproduce the crash with the same backtrace.
Comment 6 Nate Graham 2024-03-03 01:10:39 UTC 
Arjen, do you see any defects in System Monitor's code here, or is it purely a Qt issue and we should just wait for that patch to be merged? (BTW, thanks Nicolas)
Comment 7 Arjen Hiemstra 2024-03-04 10:06:15 UTC 
The code actually has a target set so this seems one of those transient state things that definitely shouldn't crash and seems to be purely an upstream issue.
Comment 8 Nicolas Fella 2024-03-07 16:32:48 UTC 
*** Bug 482741 has been marked as a duplicate of this bug. ***
Comment 9 Patrick Silva 2024-03-08 21:56:19 UTC 
*** Bug 482922 has been marked as a duplicate of this bug. ***
Comment 10 Patrick Silva 2024-03-10 18:59:30 UTC 
*** Bug 483114 has been marked as a duplicate of this bug. ***
Comment 11 SR_team 2024-03-16 23:28:33 UTC 
Same issue.

OS: ArchLinux, core 6.7.9-zen
GPU: NVIDIA, 550.54.14
Plasma version: 6.0.2
Frameworks: 6.0.0
Qt: 6.6.2

Coredump: https://nc.sr.team/s/KCqcozY9pGbFDEC

Backtrace:
```
QQuickItem::parentItem (this=0x0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:2629
Downloading source file /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp
2629        return d->parentItem;
(gdb)
(gdb) bt
#0  QQuickItem::parentItem (this=0x0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:2629
#1  0x00007fffeaf81e13 in QQuickSelectionRectanglePrivate::updateSelectionMode (this=0x5555597aa0a0)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickselectionrectangle.cpp:496
#2  0x00007fffeaf8373b in operator() (__closure=0x5555597ab4f0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickselectionrectangle.cpp:542
#3  QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()> >::call (arg=<optimized out>, f=...)
at /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#4  QtPrivate::Functor<QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()>, 0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:339
#5  QtPrivate::QCallableObject<QQuickSelectionRectangle::QQuickSelectionRectangle(QQuickItem*)::<lambda()>, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *)
(which=<optimized out>, this_=0x5555597ab4e0, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/qt6/QtCore/qobjectdefs_impl.h:522
#6  0x00007ffff6190ca9 in QtPrivate::QSlotObjectBase::call (a=0x7fffffff7358, r=0x5555597a9fc0, this=0x5555597ab4e0, this=<optimized out>, r=<optimized out>, a=<optimized out>)
at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobjectdefs_impl.h:433
#7  doActivate<false> (sender=0x5555597a9fc0, signal_index=17, argv=0x7fffffff7358) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobject.cpp:4039
#8  0x00007fffeb788d4b in QQuickItemPrivate::setEffectiveEnableRecur (this=0x555559653340, scope=0x0, newEffectiveEnable=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:6571
#9  0x00007fffeb788d4b in QQuickItemPrivate::setEffectiveEnableRecur (this=0x555559652e30, scope=0x0, newEffectiveEnable=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:6571
#10 0x00007fffeb788d4b in QQuickItemPrivate::setEffectiveEnableRecur (this=0x5555584f6dd0, scope=0x0, newEffectiveEnable=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:6571
#11 0x00007fffeb788d4b in QQuickItemPrivate::setEffectiveEnableRecur (this=0x5555588f6ab0, scope=0x0, newEffectiveEnable=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:6571
#12 0x00007fffeb788d4b in QQuickItemPrivate::setEffectiveEnableRecur (this=0x555558008000, scope=0x0, newEffectiveEnable=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:6571
#13 0x00007fffeb77f6f4 in QQuickItem::setParentItem (this=0x7fffbc0021e0, parentItem=<optimized out>) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:2721
#14 0x00007fffeb7ae1f9 in QQuickLoaderPrivate::setInitialState (obj=0x7fffbc0021e0, this=0x555557eddda0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickloader.cpp:639
#15 QQuickLoaderIncubator::setInitialState (this=this@entry=0x5555584483d0, o=0x7fffbc0021e0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickloader.cpp:622
#16 0x00007ffff72aedfa in QQmlIncubatorPrivate::incubate (this=this@entry=0x7fffbc002400, i=...) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlincubator.cpp:321
#17 0x00007ffff72af4a6 in QQmlEnginePrivate::incubate (this=0x5555557c48f0, i=<optimized out>, forContext=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlincubator.cpp:53
#18 0x00007ffff725fb86 in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlcomponent.cpp:1437
#19 0x00007fffeb7a8b46 in QQuickLoaderPrivate::_q_sourceLoaded (this=0x555557eddda0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickloader.cpp:741
#20 0x00007fffeb7add6d in QQuickLoader::setActive (this=0x555557ef41b0, newVal=<optimized out>) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickloader.cpp:315
#21 0x00007ffff7231298 in QQmlPropertyData::writeProperty (this=<optimized out>, target=<optimized out>, value=<optimized out>, flags=...)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlpropertydata_p.h:298
#22 0x00007ffff7246591 in GenericBinding<1>::doStore<bool> (flags=..., pd=<optimized out>, value=<optimized out>, this=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlbinding.cpp:272
#23 GenericBinding<1>::write (this=<optimized out>, result=..., isUndefined=false, flags=...) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlbinding.cpp:238
#24 0x00007ffff72452ea in QQmlBinding::doUpdate (this=0x555557ef6840, watcher=..., flags=..., scope=...) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlbinding.cpp:700
#25 0x00007ffff7243d04 in QQmlBinding::update (this=0x555557ef6840, flags=...) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlbinding.cpp:164
#26 0x00007ffff72d1217 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=0x0) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlnotifier.cpp:70
#27 0x00007ffff6190ada in doActivate<false> (sender=0x555557b6b1e0, signal_index=5, argv=0x0) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobject.cpp:3931
--Type <RET> for more, q to quit, c to continue without paging--
#28 0x00007ffff72e0a76 in QQmlOpenMetaObject::metaCall (this=0x555557b6c4b0, o=0x555557b6b1e0, c=<optimized out>, id=<optimized out>, a=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlopenmetaobject.cpp:277
#29 0x00007ffff72312e2 in QQmlPropertyData::doMetacall<(QMetaObject::Call)2> (this=<optimized out>, argv=0x7fffffff96b0, idx=<optimized out>, object=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlpropertydata_p.h:320
#30 QQmlPropertyData::writeProperty (this=<optimized out>, target=<optimized out>, value=<optimized out>, flags=...)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlpropertydata_p.h:340
#31 0x00007ffff72ecccc in QQmlPropertyPrivate::write (object=0x555557b6b1e0, property=..., value=..., context=..., flags=...)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlproperty.cpp:1559
#32 0x00007ffff71b0ede in QV4::QObjectWrapper::setProperty (engine=engine@entry=0x555555717a20, object=object@entry=0x555557b6b1e0, property=0x7fffffff9a80, value=...) at /usr/include/qt6/QtCore/qflags.h:73
#33 0x00007ffff71b157e in QV4::QObjectWrapper::setQmlProperty (engine=engine@entry=0x555555717a20, qmlContext=..., object=0x555557b6b1e0, name=name@entry=0x7fffe8bbf580, flags=..., flags@entry=..., value=...)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4qobjectwrapper.cpp:465
#34 0x00007ffff71b1700 in QV4::QObjectWrapper::virtualPut (m=0x7fffe8bbf538, id=..., value=..., receiver=0x7fffe8bbf538)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4qobjectwrapper.cpp:837
#35 0x00007ffff719a2c3 in QV4::Object::put (receiver=0x7fffe8bbf538, v=<optimized out>, id=..., this=0x7fffe8bbf538) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4object_p.h:41
#36 QV4::Object::virtualResolveLookupSetter (object=0x7fffe8bbf538, engine=0x555555717a20, lookup=0x555557b8ad90, value=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4object.cpp:813
#37 0x00007ffff720191c in QV4::Moth::VME::interpret (frame=0x7fffffffa020, engine=0x555555717a20, code=0x7fffe03ecaa6 "\032\b\006\324\026\006\002")
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4vme_moth.cpp:321
#38 0x00007ffff72045c5 in QV4::Moth::VME::exec (frame=<optimized out>, engine=<optimized out>) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4vme_moth.cpp:584
#39 0x00007ffff71703fe in QV4::doCall (self=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>, context=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4function.cpp:54
#40 0x00007ffff7175311 in QV4::Function::call (this=this@entry=0x555557b8ea70, thisObject=<optimized out>, argv=argv@entry=0x7fffe8bbf4f0, argc=argc@entry=1, context=context@entry=0x7fffe031d620)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4function.cpp:79
#41 0x00007ffff71754a5 in operator() (argc=1, argv=0x7fffe8bbf4f0, thisObject=<optimized out>, __closure=<synthetic pointer>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4function.cpp:30
#42 QV4::convertAndCall<QV4::Function::call(QObject*, void**, const QMetaType*, int, QV4::ExecutionContext*)::<lambda(const QV4::Value*, const QV4::Value*, int)> >
(call=..., argc=1, types=0x7fffffffa288, a=0x7fffffffbd70, thisObject=<optimized out>, engine=<optimized out>) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4jscall_p.h:173
#43 QV4::Function::call (this=0x555557b8ea70, thisObject=<optimized out>, a=0x7fffffffbd70, types=0x7fffffffa288, argc=1, context=0x7fffe031d620)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/jsruntime/qv4function.cpp:27
#44 0x00007ffff72b0427 in QQmlJavaScriptExpression::evaluate (this=<optimized out>, a=<optimized out>, types=<optimized out>, argc=<optimized out>)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmljavascriptexpression_p.h:248
#45 0x00007ffff7248b51 in QQmlBoundSignalExpression::evaluate (this=this@entry=0x555557ef96b0, a=a@entry=0x7fffffffbd70) at /usr/include/qt6/QtCore/qvarlengtharray.h:85
#46 0x00007ffff724e56b in QQmlBoundSignal_callback (a=0x7fffffffbd70, e=0x555557b7c650) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/ftw/qqmlrefcount_p.h:72
#47 QQmlBoundSignal_callback (e=0x555557b7c650, a=0x7fffffffbd70) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlboundsignal.cpp:293
#48 0x00007ffff72d1217 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=0x7fffffffbd70) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/qml/qml/qqmlnotifier.cpp:70
#49 0x00007ffff6190ada in doActivate<false> (sender=0x555557ef8fe0, signal_index=9, argv=0x7fffffffbd70) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qobject.cpp:3931
#50 0x00007fffeaea97c2 in QQuickAction::toggled (_t1=0x555559003920, this=0x555557ef8fe0) at /usr/src/debug/qt6-declarative/build/src/quicktemplates/QuickTemplates2_autogen/include/moc_qquickaction_p.cpp:481
#51 QQuickActionPrivate::trigger (this=0x555557ef90b0, source=source@entry=0x555559003920, doToggle=doToggle@entry=false)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickaction.cpp:522
#52 0x00007fffeaea98b8 in QQuickAbstractButtonPrivate::trigger (this=0x555558f99dd0, doubleClick=false) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickabstractbutton.cpp:355
#53 0x00007fffeaeaaef9 in QQuickAbstractButtonPrivate::handleRelease (this=this@entry=0x555558f99dd0, point=..., timestamp=timestamp@entry=281626042)
--Type <RET> for more, q to quit, c to continue without paging--
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickabstractbutton.cpp:167
#54 0x00007fffeaec4e2e in QQuickControl::mouseReleaseEvent (this=<optimized out>, event=0x7fffffffc930) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quicktemplates/qquickcontrol.cpp:2049
#55 0x00007fffeb78f32d in QQuickItem::event (this=0x555559003920, ev=0x7fffffffc930) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickitem.cpp:8895
#56 0x00007ffff76f438b in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x555559003920, e=0x7fffffffc930)
at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/widgets/kernel/qapplication.cpp:3296
#57 0x00007ffff6139818 in QCoreApplication::notifyInternal2 (receiver=0x555559003920, event=0x7fffffffc930) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1121
#58 0x00007ffff613985d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1539
#59 0x00007fffeb8f9ef4 in QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem
(this=this@entry=0x5555557d6750, item=item@entry=0x555559003920, isGrabber=isGrabber@entry=true, pointerEvent=pointerEvent@entry=0x7fffffffc930, handlersOnly=handlersOnly@entry=false)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/util/qquickdeliveryagent.cpp:2179
#60 0x00007fffeb8fa53e in QQuickDeliveryAgentPrivate::deliverUpdatedPoints (this=this@entry=0x5555557d6750, event=event@entry=0x7fffffffc930)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/util/qquickdeliveryagent.cpp:2015
#61 0x00007fffeb8fbf1b in QQuickDeliveryAgentPrivate::deliverPointerEvent (this=this@entry=0x5555557d6750, event=event@entry=0x7fffffffc930)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/util/qquickdeliveryagent.cpp:1857
#62 0x00007fffeb8fc61e in QQuickDeliveryAgentPrivate::handleMouseEvent (this=0x5555557d6750, event=0x7fffffffc930)
at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/util/qquickdeliveryagent.cpp:1648
#63 0x00007fffeb8f0a08 in QQuickDeliveryAgent::event (this=<optimized out>, ev=0x7fffffffc930) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/util/qquickdeliveryagent.cpp:705
#64 0x00007fffeb8345d5 in QQuickWindow::event (this=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-declarative/qtdeclarative-everywhere-src-6.6.2/src/quick/items/qquickwindow.cpp:1508
#65 0x00007ffff76f438b in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55555586eb70, e=0x7fffffffc930)
at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/widgets/kernel/qapplication.cpp:3296
#66 0x00007ffff6139818 in QCoreApplication::notifyInternal2 (receiver=0x55555586eb70, event=0x7fffffffc930) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1121
#67 0x00007ffff613986d in QCoreApplication::sendSpontaneousEvent (receiver=<optimized out>, event=<optimized out>) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qcoreapplication.cpp:1553
#68 0x00007ffff676f9e5 in QGuiApplicationPrivate::processMouseEvent (e=0x7fffd8006180) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/gui/kernel/qguiapplication.cpp:2325
#69 0x00007ffff67da85c in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/gui/kernel/qwindowsysteminterface.cpp:1109
#70 0x00007ffff6bb26c4 in userEventSourceDispatch (source=<optimized out>) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/gui/platform/unix/qeventdispatcher_glib.cpp:38
#71 0x00007ffff5495f69 in g_main_dispatch (context=0x7fffe4000ef0) at ../glib/glib/gmain.c:3476
#72 0x00007ffff54f43a7 in g_main_context_dispatch_unlocked (context=0x7fffe4000ef0) at ../glib/glib/gmain.c:4284
#73 g_main_context_iterate_unlocked.isra.0 (context=context@entry=0x7fffe4000ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/glib/gmain.c:4349
#74 0x00007ffff5494162 in g_main_context_iteration (context=0x7fffe4000ef0, may_block=1) at ../glib/glib/gmain.c:4414
#75 0x00007ffff63739c4 in QEventDispatcherGlib::processEvents (this=0x555555697c90, flags=...) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qeventdispatcher_glib.cpp:393
#76 0x00007ffff6143d6e in QEventLoop::processEvents (flags=..., this=0x7fffffffcdf0) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qeventloop.cpp:100
#77 QEventLoop::exec (this=0x7fffffffcdf0, flags=...) at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/kernel/qeventloop.cpp:182
#78 0x00007ffff613c2b8 in QCoreApplication::exec () at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/corelib/global/qflags.h:74
#79 0x00007ffff76f0f0a in QApplication::exec () at /usr/src/debug/qt6-base/qtbase-everywhere-src-6.6.2/src/widgets/kernel/qapplication.cpp:2574
#80 0x000055555555d2a0 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-systemmonitor/plasma-systemmonitor-6.0.2/src/main.cpp:116
```
Comment 12 Nicolas Fella 2024-03-17 13:44:59 UTC 
*** Bug 483833 has been marked as a duplicate of this bug. ***
Comment 13 Nate Graham 2024-03-23 03:40:20 UTC 
Looks like this it an upstream Qt issue, and it's been fixed with https://codereview.qt-project.org/c/qt/qtdeclarative/+/544750 thanks to Nicolas Fella!
Comment 14 bugsie 2024-04-02 01:30:28 UTC 
(Still) crashes here with System Monitor version 6.0.4

Operating System: KDE neon Testing Edition
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.6.3
Kernel Version: 6.5.0-26-generic (64-bit)
Graphics Platform: Wayland
Processors: 10 × AMD Ryzen 5 5600 6-Core Processor
Memory: 3,8 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: QEMU
Product Name: Standard PC (Q35 + ICH9, 2009)
System Version: pc-q35-8.2

(gdb) bt
#0  0x00007ab3ff5a9904 in QQuickItem::parentItem() const () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#1  0x00007ab3fe93ebd2 in ?? () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#2  0x00007ab3fe975dca in ?? () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#3  0x00007ab404c54d1e in ?? () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#4  0x00007ab3ff5b7ec0 in QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#5  0x00007ab3ff5b7ec0 in QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#6  0x00007ab3ff5b7ec0 in QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#7  0x00007ab3ff5b7ec0 in QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#8  0x00007ab3ff5b7ec0 in QQuickItemPrivate::setEffectiveEnableRecur(QQuickItem*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#9  0x00007ab3ff5adeff in QQuickItem::setParentItem(QQuickItem*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#10 0x00007ab3ff5ce5d9 in ?? () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#11 0x00007ab405d03eda in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#12 0x00007ab405d04554 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlRefPointer<QQmlContextData> const&) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#13 0x00007ab405cd59be in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#14 0x00007ab3ff5c8b20 in ?? () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#15 0x00007ab3ff5ce0fd in QQuickLoader::setActive(bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#16 0x00007ab405c2b468 in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#17 0x00007ab405d27bfe in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#18 0x00007ab405cd0a92 in QQmlBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&) ()
   from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#19 0x00007ab405ccbe11 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#20 0x00007ab405c3e548 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#21 0x00007ab404c54af5 in ?? () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#22 0x00007ab405c46602 in QQmlOpenMetaObject::metaCall(QObject*, QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#23 0x00007ab405c2b4b2 in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#24 0x00007ab405c55e64 in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlRefPointer<QQmlContextData> const&, QFlags<QQmlPropertyData::WriteFlag>) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#25 0x00007ab405d3d2ed in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const*, QV4::Value const&) ()
   from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#26 0x00007ab405d3dbae in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlRefPointer<QQmlContextData> const&, QObject*, QV4::String*, QFlags<QV4::QObjectWrapper::Flag>, QV4::Value const&) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#27 0x00007ab405d3dd4f in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) ()
   from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#28 0x00007ab405e5c96c in QV4::Object::virtualResolveLookupSetter(QV4::Object*, QV4::ExecutionEngine*, QV4::Lookup*, QV4::Value const&) ()
   from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#29 0x00007ab405e8c90a in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#30 0x00007ab405e907ba in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#31 0x00007ab405dc2f32 in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#32 0x00007ab405dca595 in QV4::Function::call(QObject*, void**, QMetaType const*, int, QV4::ExecutionContext*) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#33 0x00007ab405d01949 in QQmlJavaScriptExpression::evaluate(void**, QMetaType const*, int) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#34 0x00007ab405ccdf87 in QQmlBoundSignalExpression::evaluate(void**) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#35 0x00007ab405cd1ffb in ?? () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#36 0x00007ab405c3e548 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () from /lib/x86_64-linux-gnu/libQt6Qml.so.6
#37 0x00007ab404c54af5 in ?? () from /lib/x86_64-linux-gnu/libQt6Core.so.6
--Type <RET> for more, q to quit, c to continue without paging--c
#38 0x00007ab3fe9da646 in QQuickAction::toggled(QObject*) () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#39 0x00007ab3fe9dd2c3 in ?? () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#40 0x00007ab3fe9dd550 in QQuickAbstractButtonPrivate::trigger(bool) () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#41 0x00007ab3fe9df3ea in QQuickAbstractButtonPrivate::handleRelease(QPointF const&, unsigned long) () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#42 0x00007ab3fe9eefed in QQuickControl::mouseReleaseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt6QuickTemplates2.so.6
#43 0x00007ab3ff5bfd63 in QQuickItem::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#44 0x00007ab4065f1a2b in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt6Widgets.so.6
#45 0x00007ab404c8dc28 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#46 0x00007ab3ff3b3e1b in QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem(QQuickItem*, bool, QPointerEvent*, bool) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#47 0x00007ab3ff3b51f6 in QQuickDeliveryAgentPrivate::deliverUpdatedPoints(QPointerEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#48 0x00007ab3ff3b6cb3 in QQuickDeliveryAgentPrivate::deliverPointerEvent(QPointerEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#49 0x00007ab3ff3ac024 in QQuickDeliveryAgentPrivate::handleMouseEvent(QMouseEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#50 0x00007ab3ff3ade08 in QQuickDeliveryAgent::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#51 0x00007ab3ff55abac in QQuickWindow::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt6Quick.so.6
#52 0x00007ab4065f1a2b in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt6Widgets.so.6
#53 0x00007ab404c8dc28 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#54 0x00007ab4052eeb3b in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib/x86_64-linux-gnu/libQt6Gui.so.6
#55 0x00007ab40535516c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt6Gui.so.6
#56 0x00007ab40570d924 in ?? () from /lib/x86_64-linux-gnu/libQt6Gui.so.6
#57 0x00007ab403c99d3b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007ab403cef258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007ab403c973e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#60 0x00007ab404a579d0 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#61 0x00007ab404c97b0b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#62 0x00007ab404c9218c in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt6Core.so.6
#63 0x00005834da9107b2 in ?? ()
#64 0x00007ab404029d90 in __libc_start_call_main (main=main@entry=0x5834da90f650, argc=argc@entry=1, argv=argv@entry=0x7ffdc1254e08) at ../sysdeps/nptl/libc_start_call_main.h:58
#65 0x00007ab404029e40 in __libc_start_main_impl (main=0x5834da90f650, argc=1, argv=0x7ffdc1254e08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffdc1254df8) at ../csu/libc-start.c:392
#66 0x00005834da911335 in ?? ()
(gdb)
Comment 15 Arjen Hiemstra 2024-04-02 08:24:35 UTC 
It looks like the cherry-pick to 6.6 did not make it: https://codereview.qt-project.org/c/qt/qtdeclarative/+/550819

Still, this remains an upstream issue so please don't reopen it.
Comment 16 Arjen Hiemstra 2024-04-02 11:45:01 UTC 
*** Bug 484919 has been marked as a duplicate of this bug. ***
Comment 17 Torsten Wohlfarth (TUXEDO) 2024-04-02 20:47:53 UTC 
For me, the patch from https://bugs.kde.org/show_bug.cgi?id=482169#c13 was working fine with qt6-declarative 6.6.2.
Now, with qt6-declarative 6.6.3 from Kde Neon, i had to apply that patch again and systemmonitor is working fine with Show Details Sidebar.
Comment 18 Geraldo Simião 2024-04-07 03:42:17 UTC 
Still happening on:
plasma-systemmonitor-6.0.3-1.fc40

Operating System: Fedora Linux 40
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

Kernel Version: 6.8.4-300.fc40.x86_64 (64-bit)

Graphics Platform: Wayland

Processors: 8 × Intel® Core™ i7-3632QM CPU @ 2.20GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4000
Manufacturer: Acer
Product Name: Aspire V3-571

Reproducible: Always
Comment 19 Patrick Silva 2024-04-11 12:30:58 UTC 
I updated to Qt 6.7 on neon unstable a few minutes ago; the crash persists.

Operating System: KDE neon Unstable Edition
KDE Plasma Version: 6.0.80
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Graphics Platform: Wayland
Comment 20 Nate Graham 2024-04-11 15:52:35 UTC 
Re-opening. :(
Comment 21 Nate Graham 2024-04-11 16:15:04 UTC 
Apparently the fix missed 6.70. and it's in 6.7.1. Closing again.
Comment 22 David Edmundson 2024-04-11 16:15:38 UTC 
git branch --contains  47cf611d54938d0b7916aa72167b52f50b846723

* 6.7

>❯ git tag --contains 47cf611d54938d0b7916aa72167b52f50b846723
(nothing)

Commit is in 6.7.1.
Comment 23 Patrick Silva 2024-04-18 19:48:06 UTC 
*** Bug 485751 has been marked as a duplicate of this bug. ***
Comment 24 Patrick Silva 2024-05-01 13:48:29 UTC 
*** Bug 486402 has been marked as a duplicate of this bug. ***
Comment 25 Nate Graham 2024-05-24 22:59:05 UTC 
*** Bug 487461 has been marked as a duplicate of this bug. ***
Comment 26 Arjen Hiemstra 2024-05-28 13:46:56 UTC 
*** Bug 487201 has been marked as a duplicate of this bug. ***
Comment 27 Arjen Hiemstra 2024-05-30 10:22:29 UTC 
*** Bug 486473 has been marked as a duplicate of this bug. ***
Comment 28 Nate Graham 2024-06-07 21:40:06 UTC 
*** Bug 473667 has been marked as a duplicate of this bug. ***
Comment 29 elydgolden 2024-07-06 12:53:04 UTC 
Can Confirm on openSUSE Tumbleweed on Plasma 6.1.2. In particular the crash happens upon selecting an application while the "Show Details" sidebar is already open
Comment 30 Dm 2024-07-24 19:36:20 UTC 
Will there be an upgrade of QT to 6.7.1 in KDE Neon?
Comment 31 Roke Julian Lockhart Beedell 2024-07-25 20:50:15 UTC 
(In reply to Dm from comment #30)
Is it definitely not already? You might want to test Fedora 40, which is on .7.2.
Comment 32 Dm 2024-07-25 21:05:22 UTC 
(In reply to Roke Julian Lockhart Beedell from comment #31)
> (In reply to Dm from comment #30)
> Is it definitely not already? You might want to test Fedora 40, which is on
> .7.2.

But it's in Fedora, not in Neon (controlled by KDE devs), in Neon QT ver is 6.7.0((
Comment 33 Roke Julian Lockhart Beedell 2024-07-25 21:13:44 UTC 
(In reply to Dm from comment #32)

Do you ask because you're using it as a personal distribution? It's not designed to be - it's an evaluation one (see https://www.reddit.com/r/linux4noobs/comments/560aah/comment/lexo1z4/). If you're using it merely to evaluate applications, try the Testing, Unstable, or Developer editions available at https://neon.kde.org/download. Remember that although the KDE libraries are rolling, not everything else in the distribution is. It's been a source of pain for a while.

Irrespective, might be better to ask questions about library versions in an OS at https://discuss.kde.org/.
Comment 34 Dm 2024-07-26 11:49:56 UTC 
(In reply to Roke Julian Lockhart Beedell from comment #33)
> (In reply to Dm from comment #32)
> 
> Do you ask because you're using it as a personal distribution? It's not
> designed to be - it's an evaluation one (see
> https://www.reddit.com/r/linux4noobs/comments/560aah/comment/lexo1z4/). If
> you're using it merely to evaluate applications, try the Testing, Unstable,
> or Developer editions available at https://neon.kde.org/download. Remember
> that although the KDE libraries are rolling, not everything else in the
> distribution is. It's been a source of pain for a while.
> 
> Irrespective, might be better to ask questions about library versions in an
> OS at https://discuss.kde.org/.

USER edition might be better for using as personal distro if kde's dependencies are distributed with all bugfixes
(We all are here to make KDE better)
Comment 35 Roke Julian Lockhart Beedell 2024-07-26 12:36:40 UTC 
(In reply to Dm from comment #34)
Yeah, of course, if the dependencies are up-to-date enough in user. But they don't appear to be. Also, although Qt is more likely than not considered to be a direct dependency, the Ubuntu base is usually quite out-of-date, being LTS.
Comment 36 Dm 2024-07-26 13:02:01 UTC 
(In reply to Roke Julian Lockhart Beedell from comment #35)
> (In reply to Dm from comment #34)
> Yeah, of course, if the dependencies are up-to-date enough in user. But they
> don't appear to be. Also, although Qt is more likely than not considered to
> be a direct dependency, the Ubuntu base is usually quite out-of-date, being
> LTS.

QT is provided by Neon repo
Package: qt6-base
Version: 6.7.0-0xneon+22.04+jammy+release+build99
Priority: optional
Section: kde
Maintainer: Neon CI <neon@kde.org>
...
APT-Sources: http://archive.neon.kde.org/user jammy/main amd64 Packages

In Fedora QT is 6.7.2 so 6.7.2 could be also in Neon