Bug 395277

Summary: Some plasmoids crash plasmashell when dragged from one monitor to another
Product: [Plasma] plasmashell Reporter: Chris Long <achrislong>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate, plasma-bugs-null
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.8.9   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Chris Long 2018-06-12 13:56:57 UTC 
Application: plasmashell (5.8.9)

Qt Version: 5.6.1
Frameworks Version: 5.36.0
Operating System: Linux 4.13.0-43-generic x86_64
Distribution: Ubuntu 16.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Dragging plasmoid/widget "CPU Load Monitor" or "Network Monitor" from one monitor to another. Both of these crash plasmashell when dragged from one monitor to another.

However, the "System Load Viewer" can be dragged from one monitor to another with no problems.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f0e5d72f900 (LWP 15211))]

Thread 15 (Thread 0x7f0d5fffe700 (LWP 13044)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x43e65c0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x4393448, mutex=mutex@entry=0x4393440, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x4393438) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x43933c0) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x43933c0) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x43933c0) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d5fffe700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f0d6ebdf700 (LWP 7116)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2defe30) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x322a108, mutex=mutex@entry=0x322a100, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x322a0f8) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x322a080) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x322a080) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x322a080) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d6ebdf700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f0d6e3de700 (LWP 27135)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x322c040) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x322be98, mutex=mutex@entry=0x322be90, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x322be88) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x322be10) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x322be10) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x322be10) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d6e3de700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f0d74c43700 (LWP 27064)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2726170) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x306f338, mutex=mutex@entry=0x306f330, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x306f328) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x306f2b0) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x306f2b0) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x306f2b0) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d74c43700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f0d76a6b700 (LWP 27031)):
#0  0x00007f0e54ae341e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0e54ae5cea in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0e54ae6330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0e54ae649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0e586dd37b in QEventDispatcherGlib::processEvents (this=0x7f0d700008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f0e58685ffa in QEventLoop::exec (this=this@entry=0x7f0d76a6ac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0e584ae9e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f0d78f49597 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x3191140) at thread/qthread_unix.cpp:341
#9  0x00007f0e575976ba in start_thread (arg=0x7f0d76a6b700) at pthread_create.c:333
#10 0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f0d8af72700 (LWP 24371)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x28e5b40) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x28e5d88, mutex=mutex@entry=0x28e5d80, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x28e5d78) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x28e5d00) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x28e5d00) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x28e5d00) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d8af72700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f0d989fd700 (LWP 24317)):
[KCrash Handler]
#6  0x00007f0da50029de in Plotter::render (this=0x2ab5b60) at /build/kdeclarative-gkCJW7/kdeclarative-5.36.0/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp:699
#7  0x00007f0e586b4c24 in QtPrivate::QSlotObjectBase::call (a=0x7f0d989fcad0, r=0x2ab5b60, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#8  QMetaObject::activate (sender=sender@entry=0x1a3db00, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3715
#9  0x00007f0e586b51b7 in QMetaObject::activate (sender=sender@entry=0x1a3db00, m=m@entry=0x7f0e5b9f4040 <QQuickWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3595
#10 0x00007f0e5b7bf933 in QQuickWindow::beforeRendering (this=this@entry=0x1a3db00) at .moc/moc_qquickwindow.cpp:488
#11 0x00007f0e5b7c3dee in QQuickWindowPrivate::renderSceneGraph (this=this@entry=0x1a3edf0, size=...) at items/qquickwindow.cpp:406
#12 0x00007f0e5b795c9a in QSGRenderThread::syncAndRender (this=this@entry=0x1e303b0) at scenegraph/qsgthreadedrenderloop.cpp:623
#13 0x00007f0e5b79b23c in QSGRenderThread::run (this=0x1e303b0) at scenegraph/qsgthreadedrenderloop.cpp:704
#14 0x00007f0e584b3808 in QThreadPrivate::start (arg=0x1e303b0) at thread/qthread_unix.cpp:341
#15 0x00007f0e575976ba in start_thread (arg=0x7f0d989fd700) at pthread_create.c:333
#16 0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f0d9afff700 (LWP 24305)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x162f040) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x154ae38, mutex=mutex@entry=0x154ae30, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x154ae28) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x154adb0) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x154adb0) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x154adb0) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0d9afff700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f0da3025700 (LWP 24304)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x151ff10) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x14ee358, mutex=mutex@entry=0x14ee350, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b79aa8d in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x14ee348) at scenegraph/qsgthreadedrenderloop.cpp:236
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x14ee2d0) at scenegraph/qsgthreadedrenderloop.cpp:684
#5  0x00007f0e5b79b365 in QSGRenderThread::run (this=0x14ee2d0) at scenegraph/qsgthreadedrenderloop.cpp:713
#6  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x14ee2d0) at thread/qthread_unix.cpp:341
#7  0x00007f0e575976ba in start_thread (arg=0x7f0da3025700) at pthread_create.c:333
#8  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f0e33de9700 (LWP 21461)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e5d190574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f0e5d1905b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f0e575976ba in start_thread (arg=0x7f0e33de9700) at pthread_create.c:333
#4  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f0e3de38700 (LWP 18450)):
#0  0x00007f0e57db127d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0e50938073 in ?? () from /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.130
#2  0x00007f0e54b296f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0e54ae5e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0e54ae6330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0e54ae649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f0e586dd37b in QEventDispatcherGlib::processEvents (this=0x7f0e2c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#7  0x00007f0e58685ffa in QEventLoop::exec (this=this@entry=0x7f0e3de37ca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f0e584ae9e4 in QThread::exec (this=this@entry=0x1224560) at thread/qthread.cpp:500
#9  0x00007f0e5ada26b5 in QQmlThreadPrivate::run (this=0x1224560) at qml/ftw/qqmlthread.cpp:141
#10 0x00007f0e584b3808 in QThreadPrivate::start (arg=0x1224560) at thread/qthread_unix.cpp:341
#11 0x00007f0e575976ba in start_thread (arg=0x7f0e3de38700) at pthread_create.c:333
#12 0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f0e3ffff700 (LWP 15307)):
#0  __lll_unlock_wake () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007f0e5759b4ff in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7f0e543f9a30) at pthread_mutex_unlock.c:55
#2  __GI___pthread_mutex_unlock (mutex=0x7f0e543f9a30) at pthread_mutex_unlock.c:314
#3  0x00007f0e54173c55 in ?? () from /usr/lib/nvidia-384/libGL.so.1
#4  0x00007f0e54179388 in ?? () from /usr/lib/nvidia-384/libGL.so.1
#5  0x00007f0e50938102 in ?? () from /usr/lib/nvidia-384/tls/libnvidia-tls.so.384.130
#6  0x00007f0e54b296f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f0e54ae5e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f0e54ae6330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f0e54ae649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f0e586dd37b in QEventDispatcherGlib::processEvents (this=0x7f0e340008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#11 0x00007f0e58685ffa in QEventLoop::exec (this=this@entry=0x7f0e3fffeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#12 0x00007f0e584ae9e4 in QThread::exec (this=this@entry=0x10c4800) at thread/qthread.cpp:500
#13 0x00007f0e5ada26b5 in QQmlThreadPrivate::run (this=0x10c4800) at qml/ftw/qqmlthread.cpp:141
#14 0x00007f0e584b3808 in QThreadPrivate::start (arg=0x10c4800) at thread/qthread_unix.cpp:341
#15 0x00007f0e575976ba in start_thread (arg=0x7f0e3ffff700) at pthread_create.c:333
#16 0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f0e45f9f700 (LWP 15249)):
#0  0x00007f0e57db574d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0e54ae638c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0e54ae649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0e586dd37b in QEventDispatcherGlib::processEvents (this=0x7f0e380008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f0e58685ffa in QEventLoop::exec (this=this@entry=0x7f0e45f9ec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f0e584ae9e4 in QThread::exec (this=this@entry=0x7f0e5d8dbd40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#6  0x00007f0e5d868515 in QDBusConnectionManager::run (this=0x7f0e5d8dbd40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#7  0x00007f0e584b3808 in QThreadPrivate::start (arg=0x7f0e5d8dbd40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#8  0x00007f0e575976ba in start_thread (arg=0x7f0e45f9f700) at pthread_create.c:333
#9  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f0e47bec700 (LWP 15241)):
#0  0x00007f0e57db574d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f0e5c0f0c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f0e5c0f28d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0e4a362d29 in QXcbEventReader::run (this=0xfc0410) at qxcbconnection.cpp:1325
#4  0x00007f0e584b3808 in QThreadPrivate::start (arg=0xfc0410) at thread/qthread_unix.cpp:341
#5  0x00007f0e575976ba in start_thread (arg=0x7f0e47bec700) at pthread_create.c:333
#6  0x00007f0e57dc141d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f0e5d72f900 (LWP 15211)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0e584b46bb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x155ba90) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e303f0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f0e5b797da5 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x14d8280, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1177
#4  0x00007f0e5b7986ea in QSGThreadedRenderLoop::handleUpdateRequest (this=0x14d8280, window=0x1a3db00) at scenegraph/qsgthreadedrenderloop.cpp:1004
#5  0x00007f0e5b7cdd63 in QQuickWindow::event (this=0x1a3db00, e=0x7ffdf22b66e0) at items/qquickwindow.cpp:1454
#6  0x00007f0e58fbdafc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1a3db00, e=0x7ffdf22b66e0) at kernel/qapplication.cpp:3804
#7  0x00007f0e58fc3036 in QApplication::notify (this=0x7ffdf22b6dc0, receiver=0x1a3db00, e=0x7ffdf22b66e0) at kernel/qapplication.cpp:3561
#8  0x00007f0e586882a8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x1a3db00, event=event@entry=0x7ffdf22b66e0) at kernel/qcoreapplication.cpp:1015
#9  0x00007f0e589e28ce in QCoreApplication::sendEvent (event=0x7ffdf22b66e0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#10 QWindowPrivate::deliverUpdateRequest (this=this@entry=0x1a3edf0) at kernel/qwindow.cpp:2134
#11 0x00007f0e589e2e19 in QWindow::event (this=this@entry=0x1a3db00, ev=ev@entry=0x7ffdf22b6a00) at kernel/qwindow.cpp:2105
#12 0x00007f0e5b7cdd85 in QQuickWindow::event (this=0x1a3db00, e=0x7ffdf22b6a00) at items/qquickwindow.cpp:1473
#13 0x00007f0e58fbdafc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1a3db00, e=0x7ffdf22b6a00) at kernel/qapplication.cpp:3804
#14 0x00007f0e58fc3036 in QApplication::notify (this=0x7ffdf22b6dc0, receiver=0x1a3db00, e=0x7ffdf22b6a00) at kernel/qapplication.cpp:3561
#15 0x00007f0e586882a8 in QCoreApplication::notifyInternal2 (receiver=0x1a3db00, event=event@entry=0x7ffdf22b6a00) at kernel/qcoreapplication.cpp:1015
#16 0x00007f0e586dc24e in QCoreApplication::sendEvent (event=0x7ffdf22b6a00, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#17 QTimerInfoList::activateTimers (this=0x1004e90) at kernel/qtimerinfo_unix.cpp:637
#18 0x00007f0e586dc781 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#19 0x00007f0e54ae6197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f0e54ae63f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f0e54ae649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f0e586dd35f in QEventDispatcherGlib::processEvents (this=0x10056f0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#23 0x00007f0e58685ffa in QEventLoop::exec (this=this@entry=0x7ffdf22b6c50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#24 0x00007f0e5868e6bc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#25 0x00007f0e589ce7cc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1607
#26 0x00007f0e58fbaac5 in QApplication::exec () at kernel/qapplication.cpp:2979
#27 0x000000000041cffa in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-13diLw/plasma-workspace-5.8.9/shell/main.cpp:166

Possible duplicates by query: bug 388508, bug 383458, bug 378816.

Reported using DrKonqi
Comment 1 Nate Graham 2018-06-12 14:08:28 UTC 
Please see https://community.kde.org/Get_Involved/Bug_Reporting#Step_2:_Make_sure_it_hasn.27t_already_been_fixed

*** This bug has been marked as a duplicate of bug 388508 ***