Bug 437352

Summary: Kwin crash after adding new desktop through Wall view after it was deleted from the Desktop switcher
Product: [Plasma] kwin Reporter: kdebugi
Component: generalAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED UNMAINTAINED    
Severity: crash CC: nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.14.5   
Target Milestone: ---   
Platform: Debian stable   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description kdebugi 2021-05-19 11:15:50 UTC 
Application: kwin_x11 (5.14.5)

Qt Version: 5.11.3
Frameworks Version: 5.54.0
Operating System: Linux 4.19.0-16-amd64 x86_64
Distribution: Debian GNU/Linux 10 (buster)

-- Information about the crash:
- What I was doing when the application crashed:
I had 6 desktops at the beging
removed 2 desktops from desktop switcher in taskbar (right click => remove desktop) to have 2x2 desktop grid
opened wall view an it loked like 3 desktops in firt row and 1 in second row
cliked plus in wall view to add new desktop and kwin crushed
done this two times and wall view is now 2x2 as it should be

I'm using a HDMI output to monitor on the closed laptop and turned off laptops display at the begining of a day.

- Unusual behavior I noticed:
kwin crush :P

-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd65f9e1940 (LWP 11540))]

Thread 7 (Thread 0x7fd62dc98700 (LWP 11563)):
#0  0x00007fd66875e916 in ppoll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd667364721 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fd628000d68) at kernel/qcore_unix.cpp:132
#3  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fd628000d68) at kernel/qcore_unix.cpp:129
#4  qt_safe_poll (fds=0x7fd628000d68, nfds=nfds@entry=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:153
#5  0x00007fd667365b99 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at ../../include/QtCore/../../src/corelib/tools/qarraydata.h:209
#6  0x00007fd66731615b in QEventLoop::exec (this=this@entry=0x7fd62dc97c40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fd667165e76 in QThread::exec (this=this@entry=0x556ab6362d30) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fd665b83c65 in QQmlThreadPrivate::run (this=0x556ab6362d30) at qml/ftw/qqmlthread.cpp:148
#9  0x00007fd66716fa67 in QThreadPrivate::start (arg=0x556ab6362d30) at thread/qthread_unix.cpp:367
#10 0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fd626ffe700 (LWP 11560)):
#0  0x00007fd66635f00c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd666c64e6a in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fd666c64e89 in ?? () from /lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fd63a989700 (LWP 11557)):
#0  0x00007ffdc1aafb73 in clock_gettime ()
#1  0x00007fd668776ff6 in clock_gettime () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fd667368061 in qt_clock_gettime (ts=0x7fd63a988a90, clock=1) at kernel/qelapsedtimer_unix.cpp:175
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at kernel/qelapsedtimer_unix.cpp:166
#4  qt_gettime () at kernel/qelapsedtimer_unix.cpp:175
#5  0x00007fd667366899 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fd634000be0) at kernel/qtimerinfo_unix.cpp:91
#6  0x00007fd667366e95 in QTimerInfoList::timerWait (this=this@entry=0x7fd634000be0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#7  0x00007fd667365de4 in QEventDispatcherUNIX::processEvents (this=0x7fd634000b20, flags=...) at ../../include/QtCore/../../src/corelib/tools/qhash.h:462
#8  0x00007fd66731615b in QEventLoop::exec (this=this@entry=0x7fd63a988c40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#9  0x00007fd667165e76 in QThread::exec (this=this@entry=0x556ab58603e0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#10 0x00007fd665b83c65 in QQmlThreadPrivate::run (this=0x556ab58603e0) at qml/ftw/qqmlthread.cpp:148
#11 0x00007fd66716fa67 in QThreadPrivate::start (arg=0x556ab58603e0) at thread/qthread_unix.cpp:367
#12 0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fd647fff700 (LWP 11555)):
#0  0x00007fd66635f00c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd64ca29e83 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#2  0x00007fd64ca29bd7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#3  0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fd64f5ef700 (LWP 11554)):
#0  0x00007fd66875e916 in ppoll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd667364721 in ppoll (__ss=<optimized out>, __timeout=<optimized out>, __nfds=<optimized out>, __fds=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fd648000d28) at kernel/qcore_unix.cpp:132
#3  qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7fd648000d28) at kernel/qcore_unix.cpp:129
#4  qt_safe_poll (fds=0x7fd648000d28, nfds=nfds@entry=1, timeout_ts=timeout_ts@entry=0x0) at kernel/qcore_unix.cpp:153
#5  0x00007fd667365b99 in QEventDispatcherUNIX::processEvents (this=<optimized out>, flags=...) at ../../include/QtCore/../../src/corelib/tools/qarraydata.h:209
#6  0x00007fd66731615b in QEventLoop::exec (this=this@entry=0x7fd64f5eec40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fd667165e76 in QThread::exec (this=this@entry=0x556ab483a790) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fd665b83c65 in QQmlThreadPrivate::run (this=0x556ab483a790) at qml/ftw/qqmlthread.cpp:148
#9  0x00007fd66716fa67 in QThreadPrivate::start (arg=0x556ab483a790) at thread/qthread_unix.cpp:367
#10 0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fd65e025700 (LWP 11545)):
#0  std::__atomic_base<int>::store (__m=std::memory_order_relaxed, __i=0, this=0x7fd650000c20) at /usr/include/c++/8/bits/atomic_base.h:367
#1  QAtomicOps<int>::store<int> (newValue=0, _q_value=...) at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:251
#2  QBasicAtomicInteger<int>::store (newValue=0, this=0x7fd650000c20) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:104
#3  QEventDispatcherUNIX::processEvents (this=0x7fd650000b20, flags=...) at kernel/qeventdispatcher_unix.cpp:462
#4  0x00007fd66731615b in QEventLoop::exec (this=this@entry=0x7fd65e024c30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fd667165e76 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fd66564b545 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fd66716fa67 in QThreadPrivate::start (arg=0x7fd6656cad60) at thread/qthread_unix.cpp:367
#8  0x00007fd666358fa3 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fd6687694cf in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fd65f9e1940 (LWP 11540)):
[KCrash Handler]
#6  QHashData::nextNode (node=node@entry=0x7fd6685a15a0 <KWin::EffectWindowImpl::metaObject() const>) at tools/qhash.cpp:591
#7  0x00007fd666e0cf74 in QHash<KWin::EffectWindow*, KWin::WindowMotionManager::WindowMotion>::const_iterator::operator++ (this=<synthetic pointer>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qhash.h:393
#8  QHash<KWin::EffectWindow*, KWin::WindowMotionManager::WindowMotion>::keys (this=this@entry=0x556ab6226e98) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qhash.h:668
#9  0x00007fd666e06a5e in KWin::WindowMotionManager::managedWindows (this=0x556ab6226e90) at ./libkwineffects/kwineffects.h:3126
#10 KWin::DesktopGridEffect::slotWindowGeometryShapeChanged (this=0x556ab6258d10, w=0x556ab6229000, old=...) at ./effects/desktopgrid/desktopgrid.cpp:458
#11 0x00007fd666e850d8 in KWin::DesktopGridEffect::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/effects/kwin4_effect_builtins_autogen/LJ2EGOOBKZ/moc_desktopgrid.cpp:256
#12 0x00007fd6673407f6 in QMetaObject::activate (sender=0x556ab5a56750, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#13 0x00007fd666eedc87 in KWin::EffectsHandler::windowGeometryShapeChanged (this=<optimized out>, _t1=<optimized out>, _t2=...) at ./obj-x86_64-linux-gnu/libkwineffects/kwineffects_autogen/EWIEGA46WW/moc_kwineffects.cpp:1444
#14 0x00007fd667340933 in QtPrivate::QSlotObjectBase::call (a=0x7ffdc1a22620, r=0x556ab5a56750, this=0x556ab45b07b0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#15 QMetaObject::activate (sender=0x556ab4ed6e00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#16 0x00007fd6685a5407 in KWin::Toplevel::geometryShapeChanged (this=this@entry=0x556ab4ed6e00, _t1=<optimized out>, _t1@entry=0x556ab4ed6e00, _t2=...) at ./obj-x86_64-linux-gnu/kwin_autogen/EWIEGA46WW/moc_toplevel.cpp:704
#17 0x00007fd6684299e6 in KWin::Client::updateShape (this=this@entry=0x556ab4ed6e00) at ./toplevel.h:602
#18 0x00007fd6684b6250 in KWin::Client::setGeometry (this=0x556ab4ed6e00, x=<optimized out>, y=<optimized out>, w=960, h=1044, force=<optimized out>) at ./geometry.cpp:2010
#19 0x00007fd6684b79c6 in KWin::AbstractClient::setGeometry (force=KWin::AbstractClient::NormalGeometrySet, r=..., this=0x556ab4ed6e00) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrect.h:269
#20 KWin::AbstractClient::blockGeometryUpdates (block=false, this=0x556ab4ed6e00) at ./geometry.cpp:2167
#21 KWin::AbstractClient::blockGeometryUpdates (this=0x556ab4ed6e00, block=<optimized out>) at ./geometry.cpp:2155
#22 0x00007fd6684b85ad in KWin::GeometryUpdatesBlocker::~GeometryUpdatesBlocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ./abstract_client.h:1163
#23 KWin::Client::changeMaximize (this=0x556ab4ed6e00, vertical=<optimized out>, horizontal=<optimized out>, adjust=<optimized out>) at ./geometry.cpp:2277
#24 0x00007fd6684bbfa6 in KWin::AbstractClient::checkWorkspacePosition (this=0x556ab4ed6e00, oldGeometry=..., oldDesktop=-1, oldDesktop@entry=-2, oldClientGeometry=...) at ./geometry.cpp:1127
#25 0x00007fd6684c14fc in KWin::Workspace::updateClientArea (this=0x556ab45d7730, force=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrect.h:60
#26 0x00007fd6673407f6 in QMetaObject::activate (sender=0x7fd65400ec70, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#27 0x00007fd6685a58ec in KWin::VirtualDesktopManager::countChanged (this=this@entry=0x7fd65400ec70, _t1=<optimized out>, _t1@entry=3, _t2=<optimized out>) at ./obj-x86_64-linux-gnu/kwin_autogen/EWIEGA46WW/moc_virtualdesktops.cpp:490
#28 0x00007fd6685080ea in KWin::VirtualDesktopManager::setCount (this=0x7fd65400ec70, count=4) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qvector.h:236
#29 0x00007fd666e85095 in KWin::DesktopGridEffect::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/effects/kwin4_effect_builtins_autogen/LJ2EGOOBKZ/moc_desktopgrid.cpp:250
#30 0x00007fd6673407f6 in QMetaObject::activate (sender=0x7fd65801de50, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#31 0x00007fd6673407f6 in QMetaObject::activate (sender=0x556ab6494480, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x7ffdc1a23330) at kernel/qobject.cpp:3771
#32 0x00007fd665ad6005 in QQmlVMEMetaObject::activate (this=this@entry=0x556ab6495130, object=<optimized out>, index=index@entry=69, args=args@entry=0x7ffdc1a23330) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:864
#33 0x00007fd665ad7aed in QQmlVMEMetaObject::metaCall (this=0x556ab6495130, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=69, a=0x7ffdc1a23330) at qml/qqmlvmemetaobject.cpp:922
#34 0x00007fd665ad74f2 in QQmlVMEMetaObject::metaCall (this=0x556ab6497980, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=69, a=0x7ffdc1a23330) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:327
#35 0x00007fd665ad74f2 in QQmlVMEMetaObject::metaCall (this=0x556ab6498950, o=<optimized out>, c=QMetaObject::InvokeMetaMethod, _id=69, a=0x7ffdc1a23330) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:327
#36 0x00007fd665b36b8d in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffdc1a23620, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=69, argv=argv@entry=0x7ffdc1a23330) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:327
#37 0x00007fd665a9e7a3 in CallMethod (object=..., index=69, returnType=returnType@entry=43, argCount=argCount@entry=0, argTypes=argTypes@entry=0x0, engine=engine@entry=0x556ab4b8aee0, callArgs=0x7fd6324a54e0, callType=QMetaObject::InvokeMetaMethod) at jsruntime/qv4qobjectwrapper.cpp:1193
#38 0x00007fd665a9f829 in CallPrecise (object=..., data=..., engine=engine@entry=0x556ab4b8aee0, callArgs=callArgs@entry=0x7fd6324a54e0, callType=callType@entry=QMetaObject::InvokeMetaMethod) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:214
#39 0x00007fd665aa05a2 in QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=0x7fd6324a54a0, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1975
#40 0x00007fd665abaa69 in QV4::FunctionObject::call (argc=0, argv=0x7fd6324a5460, thisObject=0x7fd6324a54a0, this=<optimized out>) at jsruntime/qv4functionobject_p.h:141
#41 QV4::Runtime::method_callProperty (engine=0x556ab4b8aee0, base=0x7fd6324a54a0, nameIndex=8, argv=0x7fd6324a5460, argc=0) at jsruntime/qv4runtime.cpp:1062
#42 0x00007fd665aae1f2 in QV4::Moth::VME::exec (fo=0x556ab4b8aee0, thisObject=0x7fd665cb7760 <QV4::Moth::VME::exec(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int)::jumpTable>, argv=0x7fd6260080e0, argc=671502026) at jsruntime/qv4vme_moth.cpp:800
#43 0x00007fd665b644ff in QV4::Moth::VME::exec (context=<optimized out>, argc=<optimized out>, argv=0x7fd6324a5458, thisObject=<optimized out>, v4Function=0x556ab648cbb0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4vme_moth_p.h:72
#44 QV4::Function::call (context=<optimized out>, argc=<optimized out>, argv=0x7fd6324a5458, thisObject=<optimized out>, this=0x556ab648cbb0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4function_p.h:72
#45 QQmlJavaScriptExpression::evaluate (this=this@entry=0x556ab648fa70, callData=callData@entry=0x7fd6324a5430, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:217
#46 0x00007fd665af8527 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=0x7ffdc1a25630) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:94
#47 0x00007fd665af96bb in QQmlBoundSignal_callback (e=0x556ab64955c0, a=0x7ffdc1a25630) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#48 0x00007fd665b415f3 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7ffdc1a25630) at qml/qqmlnotifier.cpp:106
#49 0x00007fd665adba8a in QQmlData::signalEmitted (object=0x556ab5da0cc0, index=3, a=0x7ffdc1a25630) at qml/qqmlengine.cpp:861
#50 0x00007fd66734012f in QMetaObject::activate (sender=0x556ab5da0cc0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffdc1a25630) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:121
#51 0x00007fd6385f962f in QQuickAction1::triggered (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qquickaction_p.cpp:362
#52 0x00007fd6385d331f in QQuickAction1::trigger (this=<optimized out>, source=<optimized out>) at qquickaction.cpp:462
#53 0x00007fd6385d3f2b in QQuickAction1::trigger (this=<optimized out>, source=<optimized out>) at qquickaction.cpp:456
#54 0x00007fd6385f9b1c in QQuickAction1::qt_static_metacall (_o=_o@entry=0x556ab5da0cc0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=12, _a=_a@entry=0x7ffdc1a257e0) at .moc/moc_qquickaction_p.cpp:169
#55 0x00007fd6385fa123 in QQuickAction1::qt_metacall (this=0x556ab5da0cc0, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0x7ffdc1a257e0) at .moc/moc_qquickaction_p.cpp:326
#56 0x00007fd665b36b8d in QQmlObjectOrGadget::metacall (this=this@entry=0x7ffdc1a25b20, type=type@entry=QMetaObject::InvokeMetaMethod, index=<optimized out>, index@entry=17, argv=<optimized out>) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:327
#57 0x00007fd665a9e421 in CallMethod (object=..., index=<optimized out>, returnType=returnType@entry=43, argCount=<optimized out>, argTypes=<optimized out>, engine=engine@entry=0x556ab4b8aee0, callArgs=<optimized out>, callType=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1175
#58 0x00007fd665a9f855 in CallPrecise (object=..., data=..., engine=engine@entry=0x556ab4b8aee0, callArgs=callArgs@entry=0x7fd6324a53e8, callType=callType@entry=QMetaObject::InvokeMetaMethod) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:214
#59 0x00007fd665aa095b in CallOverloaded (callType=QMetaObject::InvokeMetaMethod, propertyCache=0x7fd62804b680, callArgs=0x7fd6324a53e8, engine=0x556ab4b8aee0, data=..., object=...) at jsruntime/qv4qobjectwrapper.cpp:1511
#60 QV4::QObjectMethod::callInternal (this=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at jsruntime/qv4qobjectwrapper.cpp:1977
#61 0x00007fd665abaa69 in QV4::FunctionObject::call (argc=1, argv=0x7fd6324a53a8, thisObject=0x7fd6324a53a0, this=<optimized out>) at jsruntime/qv4functionobject_p.h:141
#62 QV4::Runtime::method_callProperty (engine=0x556ab4b8aee0, base=0x7fd6324a53a0, nameIndex=94, argv=0x7fd6324a53a8, argc=1) at jsruntime/qv4runtime.cpp:1062
#63 0x00007fd665aae1f2 in QV4::Moth::VME::exec (fo=0x556ab4b8aee0, thisObject=0x7fd665cb7760 <QV4::Moth::VME::exec(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int)::jumpTable>, argv=0x7fd6260080e0, argc=671503014) at jsruntime/qv4vme_moth.cpp:800
#64 0x00007fd665b644ff in QV4::Moth::VME::exec (context=<optimized out>, argc=<optimized out>, argv=0x7fd6324a5358, thisObject=<optimized out>, v4Function=0x556ab648cff0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4vme_moth_p.h:72
#65 QV4::Function::call (context=<optimized out>, argc=<optimized out>, argv=0x7fd6324a5358, thisObject=<optimized out>, this=0x556ab648cff0) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4function_p.h:72
#66 QQmlJavaScriptExpression::evaluate (this=this@entry=0x556ab6496c20, callData=callData@entry=0x7fd6324a5330, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:217
#67 0x00007fd665af8527 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=0x7ffdc1a27b30) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:94
#68 0x00007fd665af96bb in QQmlBoundSignal_callback (e=0x556ab6496bd0, a=0x7ffdc1a27b30) at ../../include/QtQml/5.11.3/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#69 0x00007fd665b415f3 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7ffdc1a27b30) at qml/qqmlnotifier.cpp:106
#70 0x00007fd665adba8a in QQmlData::signalEmitted (object=0x556ab64960e0, index=45, a=0x7ffdc1a27b30) at qml/qqmlengine.cpp:861
#71 0x00007fd66734012f in QMetaObject::activate (sender=0x556ab64960e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffdc1a27b30) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:121
#72 0x00007fd665f8ab02 in QQuickMouseArea::released (this=this@entry=0x556ab64960e0, _t1=<optimized out>, _t1@entry=0x556ab638f7b8) at .moc/moc_qquickmousearea_p.cpp:655
#73 0x00007fd665f8c30c in QQuickMouseArea::setPressed (this=this@entry=0x556ab64960e0, button=<optimized out>, p=p@entry=false, source=<optimized out>) at items/qquickmousearea.cpp:1234
#74 0x00007fd665f8d4af in QQuickMouseArea::mouseReleaseEvent (this=0x556ab64960e0, event=0x7ffdc1a28070) at /usr/include/x86_64-linux-gnu/qt5/QtGui/qevent.h:132
#75 0x00007fd665efeeb8 in QQuickItem::event (this=0x556ab64960e0, ev=0x7ffdc1a28070) at items/qquickitem.cpp:8018
#76 0x00007fd667c944c1 in QApplicationPrivate::notify_helper (this=this@entry=0x556ab44fe680, receiver=receiver@entry=0x556ab64960e0, e=e@entry=0x7ffdc1a28070) at kernel/qapplication.cpp:3727
#77 0x00007fd667c9b970 in QApplication::notify (this=0x7ffdc1a289f0, receiver=0x556ab64960e0, e=0x7ffdc1a28070) at kernel/qapplication.cpp:3486
#78 0x00007fd667317489 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x556ab64960e0, event=event@entry=0x7ffdc1a28070) at ../../include/QtCore/5.11.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#79 0x00007fd665f1725b in QCoreApplication::sendEvent (event=0x7ffdc1a28070, receiver=0x556ab64960e0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:234
#80 QQuickWindowPrivate::deliverMouseEvent (this=this@entry=0x7fd658016910, pointerEvent=<optimized out>) at items/qquickwindow.cpp:1743
#81 0x00007fd665f17d3b in QQuickWindowPrivate::deliverPointerEvent (this=this@entry=0x7fd658016910, event=0x556ab66de370) at items/qquickwindow.cpp:2317
#82 0x00007fd665f1866f in QQuickWindowPrivate::handleMouseEvent (event=0x7ffdc1a28070, this=0x7fd658016910) at items/qquickwindow.cpp:2187
#83 QQuickWindowPrivate::handleMouseEvent (this=0x7fd658016910, event=0x7ffdc1a28070) at items/qquickwindow.cpp:2140
#84 0x00007fd666e0aeb0 in KWin::DesktopGridEffect::windowInputMouseEvent (this=<optimized out>, e=0x7ffdc1a281e0) at ./effects/desktopgrid/desktopgrid.cpp:476
#85 0x00007fd6684f5dcf in KWin::EffectsHandlerImpl::checkInputWindowEvent (this=<optimized out>, e=e@entry=0x7ffdc1a281e0) at ./effects.cpp:1214
#86 0x00007fd65d47f16c in KWin::EffectsMouseInterceptionX11Filter::event (this=0x556ab5b8ef40, event=0x7fd658007550) at ./plugins/platforms/x11/standalone/effects_mouse_interception_x11_filter.cpp:59
#87 0x00007fd668487d09 in KWin::Workspace::workspaceEvent (this=0x556ab45d7730, e=0x7fd658007550) at ./x11eventfilter.h:51
#88 0x00007fd667314fdf in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7fd658007550, result=result@entry=0x7ffdc1a28398) at kernel/qabstracteventdispatcher.cpp:466
#89 0x00007fd65f324cb0 in QXcbConnection::handleXcbEvent (this=this@entry=0x556ab4535a10, event=event@entry=0x7fd658007550) at qxcbnativeinterface.h:101
#90 0x00007fd65f325863 in QXcbConnection::processXcbEvents (this=0x556ab4535a10) at qxcbconnection.cpp:1790
#91 0x00007fd667341072 in QObject::event (this=0x556ab4535a10, e=<optimized out>) at kernel/qobject.cpp:1251
#92 0x00007fd667c944c1 in QApplicationPrivate::notify_helper (this=this@entry=0x556ab44fe680, receiver=receiver@entry=0x556ab4535a10, e=e@entry=0x7fd658008750) at kernel/qapplication.cpp:3727
#93 0x00007fd667c9b970 in QApplication::notify (this=0x7ffdc1a289f0, receiver=0x556ab4535a10, e=0x7fd658008750) at kernel/qapplication.cpp:3486
#94 0x00007fd667317489 in QCoreApplication::notifyInternal2 (receiver=0x556ab4535a10, event=0x7fd658008750) at ../../include/QtCore/5.11.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#95 0x00007fd66731a46b in QCoreApplication::sendEvent (event=0x7fd658008750, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#96 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x556ab4507330) at kernel/qcoreapplication.cpp:1744
#97 0x00007fd667365a0b in QEventDispatcherUNIX::processEvents (this=0x556ab456d2b0, flags=...) at kernel/qeventdispatcher_unix.cpp:466
#98 0x00007fd65f3b972d in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at qunixeventdispatcher.cpp:68
#99 0x00007fd66731615b in QEventLoop::exec (this=this@entry=0x7ffdc1a28900, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#100 0x00007fd66731e132 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#101 0x00007fd66883b47b in kdemain (argc=<optimized out>, argv=0x7ffdc1a28b88) at ./main_x11.cpp:468
#102 0x00007fd66869409b in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#103 0x0000556ab3b8008a in _start ()
[Inferior 1 (process 11540) detached]

Possible duplicates by query: bug 401422.

Reported using DrKonqi
Comment 1 Nate Graham 2021-05-19 19:16:06 UTC 
> Application: kwin_x11 (5.14.5)
This version if almost three years old and is unmaintained. I would strongly recommend that you upgrade to a newer version of the software.