STEPS TO REPRODUCE 1. Go to Processes page 2. Click on tree view button OBSERVED RESULT App crashes 100% of the time: #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44 #1 0x00007fd9658811e3 in __pthread_kill_internal (threadid=<optimized out>, signo=11) at pthread_kill.c:89 #2 0x00007fd965827afe in __GI_raise (sig=11) at ../sysdeps/posix/raise.c:26 #3 0x00007fd96914888a in KCrash::defaultCrashHandler (sig=11) at /home/nate/kde/src/kcrash/src/kcrash.cpp:605 #4 0x00007fd965827c30 in <signal handler called> () at /lib64/libc.so.6 #5 0x00007fd9661cecfa in QHashPrivate::iterator<QHashPrivate::Node<QtPrivate::QModelIndexWrapper, QSortFilterProxyModelPrivate::Mapping*> >::node (this=<synthetic pointer>) at /usr/src/debug/qt6-qtbase-6.9.0-2.fc42.x86_64/src/corelib/tools/qhash.h:796 #6 QHash<QtPrivate::QModelIndexWrapper, QSortFilterProxyModelPrivate::Mapping*>::const_iterator::key (this=<synthetic pointer>) at /usr/src/debug/qt6-qtbase-6.9.0-2.fc42.x86_64/src/corelib/tools/qhash.h:1189 #7 QSortFilterProxyModel::parent (this=0x11f6d290, child=<optimized out>) at /usr/src/debug/qt6-qtbase-6.9.0-2.fc42.x86_64/src/corelib/itemmodels/qsortfilterproxymodel.cpp:2141 #8 0x00007fd968ffea94 in QModelIndex::parent (this=<optimized out>) at /usr/include/qt6/QtCore/qabstractitemmodel.h:506 #9 QQmlModelIndexValueType::parent (this=<optimized out>) at /usr/src/debug/qt6-qtdeclarative-6.9.0-2.fc42.x86_64/src/qmlmodels/qqmlmodelindexvaluetype_p.h:50 #10 QQmlModelIndexValueType::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/src/debug/qt6-qtdeclarative-6.9.0-2.fc42.x86_64/redhat-linux-build/src/qmlmodels/QmlModels_autogen/include/moc_qqmlmodelindexvaluetype_p.cpp:135 #11 0x00007fd966de08c4 in QV4::doStaticReadCall (metaObject=<optimized out>, valueTypeWrapper=0x7fd91245ec00, index=<optimized out>, args=0x7ffd321d7a60) at /usr/src/debug/qt6-qtdeclarative-6.9.0-2.fc42.x86_64/src/qml/qml/qqmlvaluetypewrapper_p.h:58 #12 QV4::QQmlValueTypeWrapper::getGadgetProperty (engine=0x10827380, valueTypeWrapper=0x7fd91245ec00, metaType=..., coreIndex=<optimized out>, isFunction=<optimized out>, isEnum=<optimized out>) at /usr/src/debug/qt6-qtdeclarative-6.9.0-2.fc42.x86_64/src/qml/qml/qqmlvaluetypewrapper.cpp:406 #13 0x00007fd8f804e454 in ??? () #14 0x0000000010827380 in ??? () #15 0x0000000000000000 in ??? () EXPECTED RESULT No crash SOFTWARE/OS VERSIONS Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.80 KDE Frameworks Version: 6.16.0 Qt Version: 6.9.0 Kernel Version: 6.14.9-300.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 7840U w/ Radeon™ 780M Graphics Memory: 16 GiB of RAM (14.9 GiB usable) Graphics Processor: AMD Radeon 780M ADDITIONAL INFORMATION Reverting https://invent.kde.org/plasma/plasma-systemmonitor/-/commit/9b7d7b00a4f23f79e62ca8de0c5789451c0aa1dd fixes the crash, but that makes no immediately apparent sense, since it's unrelated code.
Cannot reproduce
I got a crash on the process page: Thread 1 "plasma-systemmo" received signal SIGABRT, Aborted. 0x00007ffff1ca774c in ?? () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007ffff1ca774c in ?? () from /usr/lib/libc.so.6 #1 0x00007ffff1c4ddc0 in raise () from /usr/lib/libc.so.6 #2 0x00007ffff1c3557a in abort () from /usr/lib/libc.so.6 #3 0x00007ffff23004dd in qAbort () at /home/david/projects/kde6/src/qtbase/src/corelib/global/qassert.cpp:46 #4 0x00007ffff23477da in qt_maybe_message_fatal<QString&> (msgType=QtFatalMsg, context=..., message=...) at /home/david/projects/kde6/src/qtbase/src/corelib/global/qlogging.cpp:2165 #5 0x00007ffff2340a94 in qt_message (msgType=QtFatalMsg, context=..., msg=0x7ffff29ffc65 "ASSERT: \"%s\" in file %s, line %d", ap=0x7ffffffee720) at /home/david/projects/kde6/src/qtbase/src/corelib/global/qlogging.cpp:412 #6 0x00007ffff2342ddd in QMessageLogger::fatal (this=0x7ffffffee8c8, msg=0x7ffff29ffc65 "ASSERT: \"%s\" in file %s, line %d") at /home/david/projects/kde6/src/qtbase/src/corelib/global/qlogging.cpp:901 #7 0x00007ffff230052b in qt_assert (assertion=0x7ffff2a1ec84 "first <= rowCount(parent)", file=0x7ffff2a1e8d7 "/home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qabstractitemmodel.cpp", line=2899) at /home/david/projects/kde6/src/qtbase/src/corelib/global/qassert.cpp:106 #8 0x00007ffff28d8b99 in QAbstractItemModel::beginInsertRows (this=0x555557438230, parent=..., first=2, last=16) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qabstractitemmodel.cpp:2899 #9 0x00007ffff294bacb in QIdentityProxyModelPrivate::sourceRowsAboutToBeInserted (this=0x555557438dd0, parent=..., start=2, end=16) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qidentityproxymodel.cpp:570 #10 0x00007ffff294edf2 in QtPrivate::FunctorCall<std::integer_sequence<unsigned long, 0ul, 1ul, 2ul>, QtPrivate::List<QModelIndex const&, int, int>, void, void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int)>::call(void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int), QIdentityProxyModelPrivate*, void**)::{lambda()#1}::operator()() const ( this=0x7ffffffeea80) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:127 #11 0x00007ffff294ec4d in QtPrivate::FunctorCallBase::call_internal<void, QtPrivate::FunctorCall<std::integer_sequence<unsigned long, 0ul, 1ul, 2ul>, QtPrivate::List<QModelIndex const&, int, int>, void, void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int)>::call(void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int), QIdentityProxyModelPrivate*, void**)::{lambda()#1}>(void**, QtPrivate::FunctorCall<std::integer_sequence<unsigned long, 0ul, 1ul, 2ul>, QtPrivate::List<QModelIndex const&, int, int>, void, void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int)>::call(void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int), QIdentityProxyModelPrivate*, void**)::{lambda()#1}&&) (args=0x7ffffffeee60, fn=...) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:65 #12 0x00007ffff294ebd7 in QtPrivate::FunctorCall<std::integer_sequence<unsigned long, 0ul, 1ul, 2ul>, QtPrivate::List<QModelIndex const&, int, int>, void, void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int)>::call ( f=(void (QIdentityProxyModelPrivate::*)(QIdentityProxyModelPrivate * const, const QModelIndex &, int, int)) 0x7ffff294ba00 <QIdentityProxyModelPrivate::sourceRowsAboutToBeInserted(QModelIndex const&, int, int)>, o=0x555557438dd0, arg=0x7ffffffeee60) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:126 #13 0x00007ffff294eb41 in QtPrivate::FunctionPointer<void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int)>::call<QtPrivate::List<QModelIndex const&, int, int>, void> ( f=(void (QIdentityProxyModelPrivate::*)(QIdentityProxyModelPrivate * const, const QModelIndex &, int, int)) 0x7ffff294ba00 <QIdentityProxyModelPrivate::sourceRowsAboutToBeInserted(QModelIndex const&, int, int)>, o=0x555557438dd0, arg=0x7ffffffeee60) --Type <RET> for more, q to quit, c to continue without paging-- at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:174 #14 0x00007ffff294ea70 in QtPrivate::QPrivateSlotObject<void (QIdentityProxyModelPrivate::*)(QModelIndex const&, int, int), QtPrivate::List<QModelIndex const&, int, int>, void>::impl (which=1, this_=0x5555576d03d0, r=0x555557438230, a=0x7ffffffeee60, ret=0x0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject_p.h:272 #15 0x00007ffff2300262 in QtPrivate::QSlotObjectBase::call (this=0x5555576d03d0, r=0x555557438230, a=0x7ffffffeee60) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:461 #16 0x00007ffff24fead4 in doActivate<false> (sender=0x55555743f060, signal_index=12, argv=0x7ffffffeee60) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4222 #17 0x00007ffff24f50c3 in QMetaObject::activate (sender=0x55555743f060, m=0x7ffff2d37e20 <QAbstractItemModel::staticMetaObject>, local_signal_index=9, argv=0x7ffffffeee60) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4282 #18 0x00007ffff28e4c95 in QMetaObject::activate<void, QModelIndex, int, int, QAbstractItemModel::QPrivateSignal> ( sender=0x55555743f060, mo=0x7ffff2d37e20 <QAbstractItemModel::staticMetaObject>, local_signal_index=9, ret=0x0, args=..., args=..., args=..., args=...) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs.h:319 #19 0x00007ffff28d8c9a in QAbstractItemModel::rowsAboutToBeInserted (this=0x55555743f060, _t1=..., _t2=2, _t3=16, _t4=...) at src/corelib/Core_autogen/include/moc_qabstractitemmodel.cpp:682 #20 0x00007ffff28d8c0b in QAbstractItemModel::beginInsertRows (this=0x55555743f060, parent=..., first=2, last=16) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qabstractitemmodel.cpp:2903 #21 0x00007ffff295430e in QSortFilterProxyModelPrivate::insert_source_items (this=0x555556729230, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., direction=QSortFilterProxyModel::Direction::Rows, emit_signal=true) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp:916 #22 0x00007ffff29564f9 in QSortFilterProxyModelPrivate::handle_filter_changed (this=0x555556729230, source_to_proxy=..., proxy_to_source=..., source_parent=..., direction=QSortFilterProxyModel::Direction::Rows) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp:1364 #23 0x00007ffff2955e36 in QSortFilterProxyModelPrivate::filter_changed (this=0x555556729230, directions=..., source_parent=...) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp:1288 #24 0x00007ffff2956093 in QSortFilterProxyModelPrivate::filter_changed (this=0x555556729230, directions=..., source_parent=...) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp:1308 #25 0x00007ffff295da31 in QSortFilterProxyModel::invalidateFilter (this=0x55555743f060) at /home/david/projects/kde6/src/qtbase/src/corelib/itemmodels/qsortfilterproxymodel.cpp:3129 #26 0x00007ffff7bc47d0 in ProcessSortFilterModel::setViewMode (this=0x55555743f060, newViewMode=ProcessSortFilterModel::ViewAll) at /home/david/projects/kde6/src/plasma/plasma-systemmonitor/src/table/ProcessSortFilterModel.cpp:146 #27 0x00007ffff7bc4d61 in ProcessSortFilterModel::qt_static_metacall (_o=0x55555743f060, _c=QMetaObject::WriteProperty, _id=1, _a=0x7ffffffef6e0) at src/table/PlasmaSystemMonitorTable_autogen/include/moc_ProcessSortFilterModel.cpp:166 #28 0x00007ffff7bc4f63 in ProcessSortFilterModel::qt_metacall (this=0x55555743f060, _c=QMetaObject::WriteProperty, _id=1, _a=0x7ffffffef6e0) at src/table/PlasmaSystemMonitorTable_autogen/include/moc_ProcessSortFilterModel.cpp:205 #29 0x00007ffff245bedc in QMetaObject::metacall (object=0x55555743f060, cl=QMetaObject::WriteProperty, idx=13, argv=0x7ffffffef6e0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qmetaobject.cpp:348 #30 0x00007ffff385d25a in QQmlPropertyPrivate::writeEnumProperty (prop=..., idx=13, object=0x55555743f060, value=..., flags=3) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlproperty.cpp:1265 #31 0x00007ffff385d7ec in QQmlPropertyPrivate::write (object=0x55555743f060, property=..., value=..., context=..., flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlproperty.cpp:1596 #32 0x00007ffff385d3fa in QQmlPropertyPrivate::writeValueProperty (object=0x55555743f060, core=..., valueTypeData=..., value=..., context=..., flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlproperty.cpp:1327 #33 0x00007ffff36f2218 in QQmlBinding::slowWrite (this=0x555557464ed0, core=..., valueTypeData=..., result=..., isUndefined=false, flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlbinding.cpp:554 #34 0x00007ffff3709f5e in GenericBinding<0>::write (this=0x555557464ed0, result=..., isUndefined=false, flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlbinding.cpp:277 #35 0x00007ffff36f2fa9 in QQmlBinding::doUpdate (this=0x555557464ed0, watcher=..., flags=..., scope=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlbinding.cpp:715 #36 0x00007ffff36f02c0 in QQmlBinding::update (this=0x555557464ed0, flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlbinding.cpp:165 #37 0x00007ffff36f248f in QQmlBinding::expressionChanged (this=0x555557464ed0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlbinding.cpp:617 #38 0x00007ffff37bb1ea in QQmlJavaScriptExpressionGuard_callback (e=0x555557652e90) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmljavascriptexpression.cpp:562 #39 0x00007ffff380caef in QQmlNotifier::emitNotify (endpoint=0x0, a=0x0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:74 #40 0x00007ffff375bdd9 in QQmlData::signalEmitted (object=0x5555573b14d0, index=11, a=0x0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlengine.cpp:345 #41 0x00007ffff24fe26c in doActivate<false> (sender=0x5555573b14d0, signal_index=11, argv=0x0) --Type <RET> for more, q to quit, c to continue without paging-- at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4112 #42 0x00007ffff24f50c3 in QMetaObject::activate (sender=0x5555573b14d0, m=0x5555567295f8, local_signal_index=7, argv=0x0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4282 #43 0x00007ffff24f51b6 in QMetaObject::activate (sender=0x5555573b14d0, signal_index=15, argv=0x0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4307 #44 0x00007ffff384042d in QQmlOpenMetaObject::metaCall (this=0x5555567295f0, o=0x5555573b14d0, c=QMetaObject::WriteProperty, id=8, a=0x7fffffff24f0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlopenmetaobject.cpp:288 #45 0x00007ffff36e451d in QQmlPropertyData::doMetacall<(QMetaObject::Call)2> (this=0x7fffffff35d0, object=0x5555573b14d0, idx=8, argv=0x7fffffff24f0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:395 #46 0x00007ffff36e4433 in QQmlPropertyData::writeProperty (this=0x7fffffff35d0, target=0x5555573b14d0, value=0x7fffffff33d0, flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlpropertydata_p.h:415 #47 0x00007ffff385dd5d in QQmlPropertyPrivate::write (object=0x5555573b14d0, property=..., value=..., context=..., flags=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlproperty.cpp:1645 #48 0x00007ffff35bab58 in QV4::QObjectWrapper::setProperty (engine=0x5555556323e0, object=0x5555573b14d0, property=0x7fffffff35d0, value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:792 #49 0x00007ffff35b8a1c in QV4::QObjectWrapper::setQmlProperty (engine=0x5555556323e0, qmlContext=..., object=0x5555573b14d0, name=0x7fffe4dbd590, flags=..., value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:577 #50 0x00007ffff35bbe93 in QV4::QObjectWrapper::virtualPut (m=0x7fffe4dbd548, id=..., value=..., receiver=0x7fffe4dbd548) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:979 #51 0x00007ffff34781d7 in QV4::Object::put (this=0x7fffe4dbd548, id=..., v=..., receiver=0x7fffe4dbd548) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4object_p.h:287 #52 0x00007ffff3587ec5 in QV4::Object::virtualResolveLookupSetter (object=0x7fffe4dbd548, engine=0x5555556323e0, lookup=0x5555573b3708, value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4object.cpp:825 #53 0x00007ffff35bd241 in QV4::QObjectWrapper::virtualResolveLookupSetter (object=0x7fffe4dbd548, engine=0x5555556323e0, lookup=0x5555573b3708, value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4qobjectwrapper.cpp:1168 #54 0x00007ffff3575de2 in QV4::Object::resolveLookupSetter (this=0x7fffe4dbd548, engine=0x5555556323e0, lookup=0x5555573b3708, value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4object_p.h:344 #55 0x00007ffff3574e31 in QV4::Lookup::resolveSetter (this=0x5555573b3708, engine=0x5555556323e0, object=0x7fffe4dbd548, value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4lookup.cpp:603 #56 0x00007ffff3574e8d in QV4::Lookup::setterGeneric (lookup=0x5555573b3708, engine=0x5555556323e0, object=..., value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4lookup.cpp:609 #57 0x00007ffff358dbc0 in QV4::Lookup::setter (this=0x5555573b3708, engine=0x5555556323e0, object=..., value=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4lookup_p.h:404 #58 0x00007ffff367ffd4 in QV4::Moth::VME::interpret (frame=0x7fffffff6370, engine=0x5555556323e0, code=0x7fffc813e988 "\032\b\006\324\026\006\002") at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:703 #59 0x00007ffff367d1b5 in QV4::Moth::VME::exec (frame=0x7fffffff6370, engine=0x5555556323e0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4vme_moth.cpp:487 #60 0x00007ffff353cde7 in QV4::doCall (self=0x5555573b7830, thisObject=0x7fffe4dbd508, argv=0x7fffe4dbd500, argc=1, context=0x7fffc816c2d8) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4function.cpp:52 #61 0x00007ffff353c49a in QV4::Function::call (this=0x5555573b7830, thisObject=0x7fffe4dbd508, argv=0x7fffe4dbd500, argc=1, context=0x7fffc816c2d8) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4function.cpp:77 #62 0x00007ffff353e0e2 in QV4::Function::call(QObject*, void**, QMetaType const*, int, QV4::ExecutionContext*)::$_0::operator()(QV4::Value const*, QV4::Value const*, int) const (this=0x7fffffff65b0, thisObject=0x7fffe4dbd508, argv=0x7fffe4dbd500, argc=1) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4function.cpp:28 #63 0x00007ffff353c191 in QV4::convertAndCall<QV4::Function::call(QObject*, void**, QMetaType const*, int, QV4::ExecutionContext*)::$_0>(QV4::ExecutionEngine*, QObject*, void**, QMetaType const*, int, QV4::Function::call(QObject*, void**, QMetaType const*, int, QV4::ExecutionContext*)::$_0) (engine=0x5555556323e0, thisObject=0x555557474790, a=0x7fffffff85c0, types=0x7fffffff6850, argc=1, call=...) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4jscall_p.h:199 #64 0x00007ffff353bee1 in QV4::Function::call (this=0x5555573b7830, thisObject=0x555557474790, a=0x7fffffff85c0, types=0x7fffffff6850, argc=1, context=0x7fffc816c2d8) at /home/david/projects/kde6/src/qtdeclarative/src/qml/jsruntime/qv4function.cpp:25 #65 0x00007ffff37b9c15 in QQmlJavaScriptExpression::evaluate (this=0x5555574749c0, a=0x7fffffff85c0, types=0x7fffffff6850, argc=1) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmljavascriptexpression.cpp:270 #66 0x00007ffff370dae2 in QQmlBoundSignalExpression::evaluate (this=0x5555574749c0, a=0x7fffffff85c0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlboundsignal.cpp:196 #67 0x00007ffff370dfd2 in QQmlBoundSignal_callback (e=0x555557474b60, a=0x7fffffff85c0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlboundsignal.cpp:315 #68 0x00007ffff380caef in QQmlNotifier::emitNotify (endpoint=0x0, a=0x7fffffff85c0) --Type <RET> for more, q to quit, c to continue without paging-- at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlnotifier.cpp:74 #69 0x00007ffff375bdd9 in QQmlData::signalEmitted (object=0x555557474790, index=7, a=0x7fffffff85c0) at /home/david/projects/kde6/src/qtdeclarative/src/qml/qml/qqmlengine.cpp:345 #70 0x00007ffff24fe26c in doActivate<false> (sender=0x555557474790, signal_index=7, argv=0x7fffffff85c0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4112 #71 0x00007ffff24f50c3 in QMetaObject::activate (sender=0x555557474790, m=0x7fffe740c358 <QQuickActionGroup::staticMetaObject>, local_signal_index=4, argv=0x7fffffff85c0) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4282 #72 0x00007fffe7127a5b in QMetaObject::activate<void, QQuickAction*> (sender=0x555557474790, mo=0x7fffe740c358 <QQuickActionGroup::staticMetaObject>, local_signal_index=4, ret=0x0, args=@0x7fffffff8600: 0x555557471a90) at /opt/kde6/include/QtCore/qobjectdefs.h:319 #73 0x00007fffe712570e in QQuickActionGroup::triggered (this=0x555557474790, _t1=0x555557471a90) at src/quicktemplates/QuickTemplates2_autogen/include/moc_qquickactiongroup_p.cpp:236 #74 0x00007fffe7125626 in QQuickActionGroupPrivate::actionTriggered (this=0x555557474860) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickactiongroup.cpp:146 #75 0x00007fffe712ad85 in QtPrivate::FunctorCall<std::integer_sequence<unsigned long>, QtPrivate::List<>, void, void (QQuickActionGroupPrivate::*)()>::call(void (QQuickActionGroupPrivate::*)(), QQuickActionGroupPrivate*, void**)::{lambda()#1}::operator()() const (this=0x7fffffff86c0) at /opt/kde6/include/QtCore/qobjectdefs_impl.h:127 #76 0x00007fffe712ac0d in QtPrivate::FunctorCallBase::call_internal<void, QtPrivate::FunctorCall<std::integer_sequence<unsigned long>, QtPrivate::List<>, void, void (QQuickActionGroupPrivate::*)()>::call(void (QQuickActionGroupPrivate::*)(), QQuickActionGroupPrivate*, void**)::{lambda()#1}>(void**, QtPrivate::FunctorCall<std::integer_sequence<unsigned long>, QtPrivate::List<>, void, void (QQuickActionGroupPrivate::*)()>::call(void (QQuickActionGroupPrivate::*)(), QQuickActionGroupPrivate*, void**)::{lambda()#1}&&) (args=0x7fffffff8a90, fn=...) at /opt/kde6/include/QtCore/qobjectdefs_impl.h:65 #77 0x00007fffe712ab9f in QtPrivate::FunctorCall<std::integer_sequence<unsigned long>, QtPrivate::List<>, void, void (QQuickActionGroupPrivate::*)()>::call(void (QQuickActionGroupPrivate::*)(), QQuickActionGroupPrivate*, void**) ( f=(void (QQuickActionGroupPrivate::*)(QQuickActionGroupPrivate * const)) 0x7fffe71255e0 <QQuickActionGroupPrivate::actionTriggered()>, o=0x555557474860, arg=0x7fffffff8a90) at /opt/kde6/include/QtCore/qobjectdefs_impl.h:126 #78 0x00007fffe712ab11 in QtPrivate::FunctionPointer<void (QQuickActionGroupPrivate::*)()>::call<QtPrivate::List<>, void>(void (QQuickActionGroupPrivate::*)(), QQuickActionGroupPrivate*, void**) ( f=(void (QQuickActionGroupPrivate::*)(QQuickActionGroupPrivate * const)) 0x7fffe71255e0 <QQuickActionGroupPrivate::actionTriggered()>, o=0x555557474860, arg=0x7fffffff8a90) at /opt/kde6/include/QtCore/qobjectdefs_impl.h:174 #79 0x00007fffe712aa40 in QtPrivate::QPrivateSlotObject<void (QQuickActionGroupPrivate::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x555557660260, r=0x555557474790, a=0x7fffffff8a90, ret=0x0) at /opt/kde6/include/QtCore/6.10.0/QtCore/private/qobject_p.h:272 #80 0x00007ffff2300262 in QtPrivate::QSlotObjectBase::call (this=0x555557660260, r=0x555557474790, a=0x7fffffff8a90) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobjectdefs_impl.h:461 #81 0x00007ffff24fead4 in doActivate<false> (sender=0x555557471a90, signal_index=11, argv=0x7fffffff8a90) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4222 #82 0x00007ffff24f50c3 in QMetaObject::activate (sender=0x555557471a90, m=0x7fffe740bf28 <QQuickAction::staticMetaObject>, local_signal_index=8, argv=0x7fffffff8a90) at /home/david/projects/kde6/src/qtbase/src/corelib/kernel/qobject.cpp:4282 #83 0x00007fffe7121dcb in QMetaObject::activate<void, QObject*> (sender=0x555557471a90, mo=0x7fffe740bf28 <QQuickAction::staticMetaObject>, local_signal_index=8, ret=0x0, args=@0x7fffffff8ad0: 0x555559391df0) at /opt/kde6/include/QtCore/qobjectdefs.h:319 #84 0x00007fffe712076e in QQuickAction::triggered (this=0x555557471a90, _t1=0x555559391df0) at src/quicktemplates/QuickTemplates2_autogen/include/moc_qquickaction_p.cpp:307 #85 0x00007fffe7120703 in QQuickActionPrivate::trigger (this=0x555557471b60, source=0x555559391df0, doToggle=false) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickaction.cpp:531 #86 0x00007fffe7103d4d in QQuickAbstractButtonPrivate::trigger (this=0x555558352e00, doubleClick=false) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickabstractbutton.cpp:383 #87 0x00007fffe7103b32 in QQuickAbstractButtonPrivate::handleRelease (this=0x555558352e00, point=..., timestamp=62772472) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickabstractbutton.cpp:190 #88 0x00007fffe714cdbd in QQuickControl::mouseReleaseEvent (this=0x555559391df0, event=0x7fffffffb6b8) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickcontrol.cpp:2067 #89 0x00007ffff5c903ea in QQuickItemPrivate::deliverPointerEvent (this=0x555558352e00, event=0x7fffffffb6b8) at /home/david/projects/kde6/src/qtdeclarative/src/quick/items/qquickitem.cpp:5666 #90 0x00007ffff5c97c25 in QQuickItem::event (this=0x555559391df0, ev=0x7fffffffb6b8) at /home/david/projects/kde6/src/qtdeclarative/src/quick/items/qquickitem.cpp:9146 #91 0x00007fffe7106d60 in QQuickAbstractButton::event (this=0x555559391df0, event=0x7fffffffb6b8) at /home/david/projects/kde6/src/qtdeclarative/src/quicktemplates/qquickabstractbutton.cpp:1176 #92 0x00007ffff69d0210 in QApplicationPrivate::notify_helper (this=0x5555555c8c70, receiver=0x555559391df0, e=0x7fffffffb6b8) at /home/david/projects/kde6/src/qtbase/src/widgets/kernel/qapplication.cpp:3310 #93 0x00007ffff69d40ec in QApplication::notify (this=0x7fffffffdc70, receiver=0x555559391df0, e=0x7fffffffb6b8)
I do get a similar crash if I first select all in table mode then switch to tree mode. Seems like some kind of stack smashing is going on since the backtrace starts in nowhere.
Valgrind outputs this: ==612417== Invalid read of size 8 ==612417== at 0x76F08CF: UnknownInlinedFun (qabstractitemmodel_p.h:45) ==612417== by 0x76F08CF: UnknownInlinedFun (qsortfilterproxymodel.cpp:276) ==612417== by 0x76F08CF: QSortFilterProxyModel::parent(QModelIndex const&) const (qsortfilterproxymodel.cpp:2145) ==612417== by 0x5D8FF2E: QModelIndex::parent() const (qabstractitemmodel.h:506) ==612417== by 0x5D90395: UnknownInlinedFun (qqmlmodelindexvaluetype_p.h:50) ==612417== by 0x5D90395: QQmlModelIndexValueType::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (moc_qqmlmodelindexvaluetype_p.cpp:135) ==612417== by 0x6EDB930: UnknownInlinedFun (qqmlvaluetypewrapper.cpp:287) ==612417== by 0x6EDB930: QV4::QQmlValueTypeWrapper::getGadgetProperty(QV4::ExecutionEngine*, QV4::Heap::QQmlValueTypeWrapper*, QMetaType, unsigned short, bool, bool) (qqmlvaluetypewrapper.cpp:406) ==612417== by 0x6EDC901: QV4::QQmlValueTypeWrapper::virtualResolveLookupGetter(QV4::Object const*, QV4::ExecutionEngine*, QV4::Lookup*) (qqmlvaluetypewrapper.cpp:648) ==612417== by 0x6D54B8A: QV4::Moth::VME::interpret(QV4::JSTypesStackFrame*, QV4::ExecutionEngine*, char const*) (qv4vme_moth.cpp:674) ==612417== by 0x6D57C13: QV4::Moth::VME::exec(QV4::JSTypesStackFrame*, QV4::ExecutionEngine*) [clone .part.0] (qv4vme_moth.cpp:487) ==612417== by 0x6C9FC6F: QV4::doCall(QV4::Function*, QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext*) (qv4function.cpp:52) ==612417== by 0x6DFC023: QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) (qqmljavascriptexpression.cpp:238) ==612417== by 0x6D88289: QQmlBinding::evaluate(bool*) (qqmlbinding.cpp:195) ==612417== by 0x6D8DD48: QQmlBinding::doUpdate(QQmlJavaScriptExpression::DeleteWatcher const&, QFlags<QQmlPropertyData::WriteFlag>, QV4::Scope&) (qqmlbinding.cpp:713) ==612417== by 0x6D8F85C: QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) (qqmlbinding.cpp:165) ==612417== Address 0x34275ac8 is 136 bytes inside a block of size 144 free'd ==612417== at 0x48738DD: operator delete(void*, unsigned long) (vg_replace_malloc.c:1181) ==612417== by 0x76ED606: UnknownInlinedFun (qalgorithms.h:28) ==612417== by 0x76ED606: UnknownInlinedFun (qalgorithms.h:36) ==612417== by 0x76ED606: QSortFilterProxyModelPrivate::_q_clearMapping() (qsortfilterproxymodel.cpp:469) ==612417== by 0x76F3E2E: QSortFilterProxyModelPrivate::_q_sourceReset() (qsortfilterproxymodel.cpp:1595) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x832B32E: KSysGuard::ProcessDataModel::setFlatList(bool) (process_data_model.cpp:274) ==612417== by 0x82F0332: KSysGuard::ProcessDataModel::qt_metacall(QMetaObject::Call, int, void**) (moc_process_data_model.cpp:192) ==612417== by 0x6D73EE8: UnknownInlinedFun (qqmlpropertydata_p.h:375) ==612417== by 0x6D73EE8: QQmlPropertyData::writeProperty(QObject*, void*, QFlags<QQmlPropertyData::WriteFlag>) const (qqmlpropertydata_p.h:395) ==612417== Block was alloc'd at ==612417== at 0x486FF93: operator new(unsigned long) (vg_replace_malloc.c:487) ==612417== by 0x76E7564: QSortFilterProxyModelPrivate::create_mapping(QModelIndex const&) const (qsortfilterproxymodel.cpp:487) ==612417== by 0x76F4D23: QSortFilterProxyModel::hasChildren(QModelIndex const&) const (qsortfilterproxymodel.cpp:2209) ==612417== by 0x5DA762A: QQmlTreeModelToTableModel::showModelTopLevelItems(bool) (qqmltreemodeltotablemodel.cpp:343) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x76F3E36: QSortFilterProxyModelPrivate::_q_sourceReset() (qsortfilterproxymodel.cpp:1597) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146) ==612417== by 0x76ADAA0: UnknownInlinedFun (qobjectdefs.h:306) ==612417== by 0x76ADAA0: UnknownInlinedFun (moc_qabstractitemmodel.cpp:736) ==612417== by 0x76ADAA0: QAbstractItemModel::endResetModel() (qabstractitemmodel.cpp:3439) ==612417== by 0x74B67EE: UnknownInlinedFun (qobjectdefs_impl.h:461) ==612417== by 0x74B67EE: void doActivate<false>(QObject*, int, void**) (qobject.cpp:4146)
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/qqc2-desktop-style/-/merge_requests/461
Git commit fcd3160a277d32c09a2949c8f920c2007832b339 by Arjen Hiemstra. Committed on 11/06/2025 at 10:47. Pushed by ahiemstra into branch 'master'. Remove modelIndex property from TreeViewDelegate It's adding a public property that shouldn't be added. It's also storing a QModelIndex which may go stale and result in crashes if accessed. M +2 -23 org.kde.desktop/TreeViewDelegate.qml https://invent.kde.org/frameworks/qqc2-desktop-style/-/commit/fcd3160a277d32c09a2949c8f920c2007832b339