Bug 443738

Application: plasmashell (5.23.0)

Qt Version: 5.15.3
Frameworks Version: 5.87.0
Operating System: Linux 5.11.0-37-generic x86_64
Windowing System: X11
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.0 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
I changed the Start menu with "alternative widget"

- Unusual behavior I noticed:
After I changed the widget plasmashell crashes and remove the star menu widget.

- Custom settings of the application:

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 1612]
[New LWP 1617]
[New LWP 1743]
[New LWP 1804]
[New LWP 1818]
[New LWP 1819]
[New LWP 1884]
[New LWP 1887]
[New LWP 1969]
[New LWP 1972]
[New LWP 1973]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f7f0eadfaff in __GI___poll (fds=0x7ffe8e0fbf78, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
____drkonqi_qmltrace_thread:1____
Failed to do pygdbmi parsing: No module named 'pygdbmi'
frame={level="0",func="expression for target",file="/usr/share/plasma/plasmoids/org.kde.plasma.kickoff/contents/ui/Kickoff.qml",fullname="/usr/share/plasma/plasmoids/org.kde.plasma.kickoff/cont".
---------------------------------
(beware that frames may have been optimized out)

[Current thread is 1 (Thread 0x7f7f0ac349c0 (LWP 1598))]

Thread 12 (Thread 0x7f7ebf3ff700 (LWP 1973)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5653457f0ed4) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5653457f0e80, cond=0x5653457f0ea8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5653457f0ea8, mutex=0x5653457f0e80) at pthread_cond_wait.c:647
#3  0x00007f7f0ee7459b in QWaitConditionPrivate::wait (deadline=..., this=0x5653457f0e80) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x5653435f8b58, mutex=mutex@entry=0x5653435f8b50, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7f10addb44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5653435f8b48) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x5653435f8ab0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f7f10addfb9 in QSGRenderThread::run (this=0x5653435f8ab0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x5653435f8ab0) at thread/qthread_unix.cpp:329
#9  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7ebebfe700 (LWP 1972)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x565346f9bb74) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x565346f9bb20, cond=0x565346f9bb48) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x565346f9bb48, mutex=0x565346f9bb20) at pthread_cond_wait.c:647
#3  0x00007f7f0ee7459b in QWaitConditionPrivate::wait (deadline=..., this=0x565346f9bb20) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x7f7efc046488, mutex=mutex@entry=0x7f7efc046480, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7f10addb44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f7efc046478) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f7efc0463e0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f7f10addfb9 in QSGRenderThread::run (this=0x7f7efc0463e0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x7f7efc0463e0) at thread/qthread_unix.cpp:329
#9  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f7ebdffd700 (LWP 1969)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x565346f8c934) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x565346f8c8e0, cond=0x565346f8c908) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x565346f8c908, mutex=0x565346f8c8e0) at pthread_cond_wait.c:647
#3  0x00007f7f0ee7459b in QWaitConditionPrivate::wait (deadline=..., this=0x565346f8c8e0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x7f7f0400e988, mutex=mutex@entry=0x7f7f0400e980, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7f10addb44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x7f7f0400e978) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x7f7f0400e8e0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f7f10addfb9 in QSGRenderThread::run (this=0x7f7f0400e8e0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x7f7f0400e8e0) at thread/qthread_unix.cpp:329
#9  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f7ed6efb700 (LWP 1887)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56534380cb80) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56534380cb30, cond=0x56534380cb58) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x56534380cb58, mutex=0x56534380cb30) at pthread_cond_wait.c:647
#3  0x00007f7f0ee7459b in QWaitConditionPrivate::wait (deadline=..., this=0x56534380cb30) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x5653457fe158, mutex=mutex@entry=0x5653457fe150, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7f10addb44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5653457fe148) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x5653457fe0b0) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f7f10addfb9 in QSGRenderThread::run (this=0x5653457fe0b0) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x5653457fe0b0) at thread/qthread_unix.cpp:329
#9  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f7ee268b700 (LWP 1884)):
#0  0x00007f7f1149fbf0 in ?? () from /lib64/ld-linux-x86-64.so.2
#1  0x00007f7f1149fdfc in ?? () from /lib64/ld-linux-x86-64.so.2
#2  0x00007f7f114a5f2c in __tls_get_addr () from /lib64/ld-linux-x86-64.so.2
#3  0x00007f7f0ee6d8fa in get_thread_data () at thread/qthread_unix.cpp:207
#4  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:207
#5  0x00007f7f0f0af4be in postEventSourcePrepare (s=0x7f7edc002e30, timeout=0x7f7ee268a9d4) at kernel/qeventdispatcher_glib.cpp:253
#6  0x00007f7f0d38a8ef in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f7f0d38b29b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f7f0d38b4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f7f0f0af5eb in QEventDispatcherGlib::processEvents (this=0x7f7edc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#10 0x00007f7f0f05387b in QEventLoop::exec (this=this@entry=0x7f7ee268aba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#11 0x00007f7f0ee6d292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#12 0x00007f7ee161207c in KCupsConnection::run() () from /lib/x86_64-linux-gnu/libkcupslib.so
#13 0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x565344db3840) at thread/qthread_unix.cpp:329
#14 0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#15 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7eeddfe700 (LWP 1819)):
#0  0x00007f7f0d38a902 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f7f0d38b29b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0d38b4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0f0af5eb in QEventDispatcherGlib::processEvents (this=0x7f7ee4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f0f05387b in QEventLoop::exec (this=this@entry=0x7f7eeddfdba0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f7f0ee6d292 in QThread::exec (this=this@entry=0x5653435b75a0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7f10a183ba in QQuickPixmapReader::run (this=0x5653435b75a0) at util/qquickpixmapcache.cpp:1024
#7  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x5653435b75a0) at thread/qthread_unix.cpp:329
#8  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7ef4d2e700 (LWP 1818)):
#0  0x00007f7f0eae212b in __GI___select (nfds=41, readfds=0x7f7ef4d2dba0, writefds=0x0, exceptfds=0x0, timeout=0x7f7ef4d2db90) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00007f7f02e69981 in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.460.91.03
#2  0x00007f7f02e6746a in ?? () from /lib/x86_64-linux-gnu/libnvidia-glcore.so.460.91.03
#3  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#4  0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7ef6842700 (LWP 1804)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x565343153750) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x565343153700, cond=0x565343153728) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x565343153728, mutex=0x565343153700) at pthread_cond_wait.c:647
#3  0x00007f7f0ee7459b in QWaitConditionPrivate::wait (deadline=..., this=0x565343153700) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x5653431536e8, mutex=mutex@entry=0x5653431536e0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f7f10addb44 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x5653431536d8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x565343153640) at scenegraph/qsgthreadedrenderloop.cpp:936
#7  0x00007f7f10addfb9 in QSGRenderThread::run (this=0x565343153640) at scenegraph/qsgthreadedrenderloop.cpp:1053
#8  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x565343153640) at thread/qthread_unix.cpp:329
#9  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7f01566700 (LWP 1743)):
#0  0x00007f7f0eadfaff in __GI___poll (fds=0x7f7ef8004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7f0d38b36e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0d38b4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0f0af5eb in QEventDispatcherGlib::processEvents (this=0x7f7ef8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f0f05387b in QEventLoop::exec (this=this@entry=0x7f7f01565bc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f7f0ee6d292 in QThread::exec (this=this@entry=0x565342614010) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7f1067e549 in QQmlThreadPrivate::run (this=0x565342614010) at qml/ftw/qqmlthread.cpp:155
#7  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x565342614010) at thread/qthread_unix.cpp:329
#8  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f7f09182700 (LWP 1617)):
#0  0x00007f7f0eadfaff in __GI___poll (fds=0x7f7efc016780, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7f0d38b36e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7f0d38b4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7f0f0af5eb in QEventDispatcherGlib::processEvents (this=0x7f7efc000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f7f0f05387b in QEventLoop::exec (this=this@entry=0x7f7f09181bb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f7f0ee6d292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7f0f9e0f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x7f7f0fa64d80) at thread/qthread_unix.cpp:329
#8  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7f09e50700 (LWP 1612)):
#0  0x00007f7f0eadfaff in __GI___poll (fds=0x7f7f09e4fae8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7f111eec1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f7f111f090a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f7f0a575e88 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f7f0ee6e42c in QThreadPrivate::start (arg=0x5653422b06d0) at thread/qthread_unix.cpp:329
#5  0x00007f7f0ddbd609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f7f0eaec293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f7f0ac349c0 (LWP 1598)):
[KCrash Handler]
#4  0x00007f7f105c6adb in QQmlObjectCreator::requiredProperties (this=<optimized out>) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/qml/qqmlobjectcreator_p.h:136
#5  QQmlComponentPrivate::requiredProperties (this=this@entry=0x5653464bd310) at qml/qqmlcomponent.cpp:344
#6  0x00007f7f105ca4a8 in QQmlComponentPrivate::completeCreate (this=0x5653464bd310) at qml/qqmlcomponent.cpp:1071
#7  0x00007f7f105b7950 in QQmlEnginePrivate::singletonInstance<QJSValue> (this=this@entry=0x5653424f3de0, type=...) at qml/qqmlengine.cpp:2526
#8  0x00007f7f104b3463 in QQmlEnginePrivate::singletonInstance<QObject*> (type=..., this=0x5653424f3de0) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/qml/qqmlengine_p.h:463
#9  QV4::QQmlContextWrapper::getPropertyAndBase (resource=0x7f7f00927578, id=..., receiver=<optimized out>, hasProperty=<optimized out>, base=0x0, lookup=0x565343c11510) at jsruntime/qv4qmlcontext.cpp:236
#10 0x00007f7f104b373c in QV4::QQmlContextWrapper::resolveQmlContextPropertyLookupGetter (l=0x565343c11510, engine=0x565342522440, base=0x0) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/common/qv4staticvalue_p.h:325
#11 0x00007f7f104f996c in QV4::Moth::VME::interpret (frame=0x7ffe8e0fd6a0, engine=0x565342522440, code=0x7f7ee0023f55 "\030\006\002@") at jsruntime/qv4vme_moth.cpp:585
#12 0x00007f7f104ff11f in QV4::Moth::VME::exec (frame=frame@entry=0x7ffe8e0fd6a0, engine=engine@entry=0x565342522440) at jsruntime/qv4vme_moth.cpp:463
#13 0x00007f7f1048c2fd in QV4::Function::call (this=this@entry=0x56534509e1f0, thisObject=<optimized out>, argv=argv@entry=0x7f7f00927500, argc=<optimized out>, context=<optimized out>) at jsruntime/qv4function.cpp:69
#14 0x00007f7f10631fb7 in QQmlJavaScriptExpression::evaluate (this=this@entry=0x565342ee9c20, callData=callData@entry=0x7f7f009274d0, isUndefined=isUndefined@entry=0x7ffe8e0fd89f) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:343
#15 0x00007f7f10637e13 in QQmlBinding::evaluate (this=this@entry=0x565342ee9c20, isUndefined=isUndefined@entry=0x7ffe8e0fd89f) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:95
#16 0x00007f7f1063c2ed in QQmlNonbindingBinding::doUpdate (this=0x565342ee9c20, watcher=..., flags=..., scope=...) at qml/qqmlbinding.cpp:254
#17 0x00007f7f10639112 in QQmlBinding::update (this=0x565342ee9c20, flags=...) at qml/qqmlbinding.cpp:194
#18 0x00007f7f1064b45e in QQmlObjectCreator::finalize (this=0x565347272f60, interrupt=...) at qml/qqmlobjectcreator.cpp:1394
#19 0x00007f7f105cee05 in QQmlIncubatorPrivate::incubate (this=0x5653464c3400, i=...) at qml/qqmlincubator.cpp:364
#20 0x00007f7f105cf376 in QQmlEnginePrivate::incubate (this=0x5653424f3de0, i=..., forContext=forContext@entry=0x56534364a4b0) at qml/qqmlincubator.cpp:89
#21 0x00007f7f105c8afe in QQmlComponent::create (this=<optimized out>, incubator=..., context=<optimized out>, forContext=forContext@entry=0x0) at qml/qqmlcomponent.cpp:1178
#22 0x00007f7f11082f51 in KDeclarative::QmlObject::completeInitialization (initialProperties=..., this=0x565345127510) at ./src/kdeclarative/qmlobject.cpp:307
#23 KDeclarative::QmlObject::completeInitialization (this=0x565345127510, initialProperties=...) at ./src/kdeclarative/qmlobject.cpp:289
#24 0x00007f7f1142d833 in PlasmaQuick::AppletQuickItem::init() () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#25 0x00007f7f01581159 in AppletInterface::init (this=0x565343874ff0) at ./src/scriptengines/qml/plasmoid/appletinterface.cpp:141
#26 0x00007f7f1142f3f1 in PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#27 0x00007f7f10b20ad5 in QQuickItemPrivate::itemChange (this=this@entry=0x565343f38850, change=change@entry=QQuickItem::ItemSceneChange, data=...) at items/qquickitem.cpp:6310
#28 0x00007f7f10b24d8e in QQuickItemPrivate::refWindow (this=0x565343f38850, c=0x565342ff1940) at items/qquickitem.h:186
#29 0x00007f7f10b27024 in QQuickItem::setParentItem (this=0x565343874ff0, parentItem=<optimized out>) at items/qquickitem.cpp:2716
#30 0x00007f7f10b2b71f in QQuickItem::qt_static_metacall (_o=_o@entry=0x565343874ff0, _c=_c@entry=QMetaObject::WriteProperty, _id=_id@entry=0, _a=_a@entry=0x7ffe8e0fe380) at .moc/moc_qquickitem.cpp:967
#31 0x00007f7f10b2bc0b in QQuickItem::qt_metacall (this=0x565343874ff0, _c=QMetaObject::WriteProperty, _id=0, _a=0x7ffe8e0fe380) at .moc/moc_qquickitem.cpp:1048
#32 0x00007f7f1142f48a in PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#33 0x00007f7f01581f8a in AppletInterface::qt_metacall (this=0x565343874ff0, _c=QMetaObject::WriteProperty, _id=<optimized out>, _a=0x7ffe8e0fe380) at ./obj-x86_64-linux-gnu/src/scriptengines/qml/plasma_appletscript_declarative_autogen/include/moc_appletinterface.cpp:850
#34 0x00007f7f0f061f5b in QMetaProperty::write(QObject*, QVariant const&) const () at kernel/qmetaobject.cpp:3258
#35 0x00007f7f0f08a866 in QObject::setProperty (this=this@entry=0x565343874ff0, name=name@entry=0x7f7f0159a456 "parent", value=...) at kernel/qobject.cpp:4070
#36 0x00007f7f015877d6 in ContainmentInterface::appletAddedForward (this=0x5653429442e0, applet=<optimized out>) at /usr/include/c++/9/bits/atomic_base.h:413
#37 0x00007f7f0f08bd9e in QtPrivate::QSlotObjectBase::call (a=0x7ffe8e0fe650, r=0x5653429442e0, this=0x565342942700) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#38 doActivate<false> (sender=0x565342934310, signal_index=21, argv=0x7ffe8e0fe650) at kernel/qobject.cpp:3886
#39 0x00007f7f111354e3 in Plasma::Containment::appletAdded(Plasma::Applet*) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#40 0x00007f7f1113754a in Plasma::Containment::addApplet(Plasma::Applet*) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#41 0x00007f7f1114c187 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#42 0x00007f7f11135d79 in Plasma::Containment::createApplet(QString const&, QList<QVariant> const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#43 0x00007f7f01585265 in ContainmentInterface::createApplet (this=this@entry=0x5653429442e0, plugin=..., args=..., geom=...) at /usr/include/c++/9/bits/atomic_base.h:413
#44 0x00007f7f0158f210 in ContainmentInterface::qt_static_metacall (_o=0x5653429442e0, _c=<optimized out>, _id=<optimized out>, _a=0x7ffe8e0fead0) at ./obj-x86_64-linux-gnu/src/scriptengines/qml/plasma_appletscript_declarative_autogen/include/moc_containmentinterface.cpp:246
#45 0x00007f7f0f063b63 in QMetaMethod::invoke(QObject*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) const () at kernel/qmetaobject.cpp:2303
#46 0x00007f7f0f064f92 in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () at kernel/qmetaobject.cpp:1515
#47 0x00005653409c63c1 in QMetaObject::invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., ret=..., member=0x565340a1bc0d "createApplet", obj=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs.h:427
#48 AlternativesHelper::<lambda()>::operator() (__closure=0x565346d27440) at ./shell/alternativeshelper.cpp:67
#49 QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, AlternativesHelper::loadAlternative(const QString&)::<lambda()> >::call (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:146
#50 QtPrivate::Functor<AlternativesHelper::loadAlternative(const QString&)::<lambda()>, 0>::call<QtPrivate::List<>, void> (arg=<optimized out>, f=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:256
#51 QtPrivate::QFunctorSlotObject<AlternativesHelper::loadAlternative(const QString&)::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=<optimized out>, this_=0x565346d27430, r=<optimized out>, a=<optimized out>, ret=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:443
#52 0x00007f7f0f08bd9e in QtPrivate::QSlotObjectBase::call (a=0x7ffe8e0ff160, r=0x5653429442e0, this=0x565346d27430) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#53 doActivate<false> (sender=0x5653429463d0, signal_index=0, argv=0x7ffe8e0ff160) at kernel/qobject.cpp:3886
#54 0x00007f7f0f085167 in QMetaObject::activate (sender=sender@entry=0x5653429463d0, m=m@entry=0x7f7f0f2e7ae0 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe8e0ff160) at kernel/qobject.cpp:3946
#55 0x00007f7f0f085223 in QObject::destroyed (this=this@entry=0x5653429463d0, _t1=<optimized out>, _t1@entry=0x5653429463d0) at .moc/moc_qobject.cpp:219
#56 0x00007f7f0f089ff5 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:992
#57 0x00007f7f1112f30d in Plasma::Applet::~Applet() () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#58 0x00007f7f0f0826b3 in QObject::event (this=0x5653429463d0, e=0x565346699e60) at kernel/qobject.cpp:1301
#59 0x00007f7f0fd64dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x5653422ae650, receiver=receiver@entry=0x5653429463d0, e=e@entry=0x565346699e60) at kernel/qapplication.cpp:3632
#60 0x00007f7f0fd6dbb8 in QApplication::notify (this=0x7ffe8e0ff8c0, receiver=0x5653429463d0, e=0x565346699e60) at kernel/qapplication.cpp:3156
#61 0x00007f7f0f054d7a in QCoreApplication::notifyInternal2 (receiver=0x5653429463d0, event=0x565346699e60) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#62 0x00007f7f0f057681 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x565342287ef0) at kernel/qcoreapplication.cpp:1821
#63 0x00007f7f0f0aff77 in postEventSourceDispatch (s=0x5653423603a0) at kernel/qeventdispatcher_glib.cpp:277
#64 0x00007f7f0d38b17d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#65 0x00007f7f0d38b400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#66 0x00007f7f0d38b4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#67 0x00007f7f0f0af5d2 in QEventDispatcherGlib::processEvents (this=0x565342373960, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#68 0x00007f7f0f05387b in QEventLoop::exec (this=this@entry=0x7ffe8e0ff7a0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#69 0x00007f7f0f05ba34 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#70 0x00005653409bccf5 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:238
[Inferior 1 (process 1598) detached]

Possible duplicates by query: bug 443708, bug 429585, bug 423483, bug 418898, bug 418690.

Reported using DrKonqi