https://bugs.kde.org/show_bug.cgi?id=362168

            Bug ID: 362168
           Summary: Plasmashell crash, possibly related to icons-only task
                    manager
           Product: plasmashell
           Version: 5.5.5
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: talkingod...@gmail.com
                CC: bhus...@gmail.com, plasma-b...@kde.org

Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

At various times, the crash appeared to trigger from hovering over task icons,
clicking on icons, or changing screen resolution.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f75b97628c0 (LWP 6361))]

Thread 12 (Thread 0x7f75a4aaa700 (LWP 6365)):
#0  0x00007f75b3e6ee8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f75b7f33c62 in _xcb_conn_wait (__timeout=-1, __nfds=1,
__fds=0x7f75a4aa9c00) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  0x00007f75b7f33c62 in _xcb_conn_wait (c=c@entry=0x12cc140,
cond=cond@entry=0x12cc180, vector=vector@entry=0x0, count=count@entry=0x0) at
../../src/xcb_conn.c:459
#3  0x00007f75b7f358d7 in xcb_wait_for_event (c=0x12cc140) at
../../src/xcb_in.c:693
#4  0x00007f75a6bf8629 in QXcbEventReader::run() (this=0x12da670) at
qxcbconnection.cpp:1253
#5  0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x12da670) at
thread/qthread_unix.cpp:331
#6  0x00007f75b36516fa in start_thread (arg=0x7f75a4aaa700) at
pthread_create.c:333
#7  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f759e1fc700 (LWP 6370)):
#0  0x00007f75b0c48a49 in g_mutex_lock (mutex=mutex@entry=0x7f7598000990) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f75b0c03d5c in g_main_context_check
(context=context@entry=0x7f7598000990, max_priority=2147483647,
fds=fds@entry=0x7f7598003070, n_fds=n_fds@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3683
#2  0x00007f75b0c042c0 in g_main_context_iterate
(context=context@entry=0x7f7598000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3837
#3  0x00007f75b0c0442c in g_main_context_iteration (context=0x7f7598000990,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f75b479ba9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f75980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f759e1fbce0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6  0x00007f75b455f8a4 in QThread::exec() (this=this@entry=0x13b8b90) at
thread/qthread.cpp:503
#7  0x00007f75b6e073c5 in QQmlThreadPrivate::run() (this=0x13b8b90) at
qml/ftw/qqmlthread.cpp:141
#8  0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x13b8b90) at
thread/qthread_unix.cpp:331
#9  0x00007f75b36516fa in start_thread (arg=0x7f759e1fc700) at
pthread_create.c:333
#10 0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f759383b700 (LWP 6371)):
#0  0x00007f75b36573a0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f759774faa3 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f759774f907 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f75b36516fa in start_thread (arg=0x7f759383b700) at
pthread_create.c:333
#4  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f759303a700 (LWP 6372)):
#0  0x00007f75b36573a0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f759774faa3 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f759774f907 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f75b36516fa in start_thread (arg=0x7f759303a700) at
pthread_create.c:333
#4  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f7592839700 (LWP 6373)):
#0  0x00007f75b36573a0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f759774faa3 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f759774f907 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f75b36516fa in start_thread (arg=0x7f7592839700) at
pthread_create.c:333
#4  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f7592038700 (LWP 6374)):
#0  0x00007f75b36573a0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f759774faa3 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f759774f907 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f75b36516fa in start_thread (arg=0x7f7592038700) at
pthread_create.c:333
#4  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f758d805700 (LWP 6375)):
#0  0x00007f75b0c0437b in g_main_context_iterate
(context=context@entry=0x7f7588000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3840
#1  0x00007f75b0c0442c in g_main_context_iteration (context=0x7f7588000990,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#2  0x00007f75b479ba9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f75880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f758d804ce0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#4  0x00007f75b455f8a4 in QThread::exec() (this=this@entry=0x15b3a00) at
thread/qthread.cpp:503
#5  0x00007f75b6e073c5 in QQmlThreadPrivate::run() (this=0x15b3a00) at
qml/ftw/qqmlthread.cpp:141
#6  0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x15b3a00) at
thread/qthread_unix.cpp:331
#7  0x00007f75b36516fa in start_thread (arg=0x7f758d805700) at
pthread_create.c:333
#8  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f758784d700 (LWP 6376)):
#0  0x00007f75b0c48a49 in g_mutex_lock (mutex=mutex@entry=0x7f7580000990) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f75b0c038b9 in g_main_context_prepare
(context=context@entry=0x7f7580000990, priority=priority@entry=0x7f758784cbb0)
at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3444
#2  0x00007f75b0c0424b in g_main_context_iterate
(context=context@entry=0x7f7580000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3820
#3  0x00007f75b0c0442c in g_main_context_iteration (context=0x7f7580000990,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f75b479ba9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f75800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f758784cce0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6  0x00007f75b455f8a4 in QThread::exec() (this=this@entry=0x16cf2a0) at
thread/qthread.cpp:503
#7  0x00007f75b6e073c5 in QQmlThreadPrivate::run() (this=0x16cf2a0) at
qml/ftw/qqmlthread.cpp:141
#8  0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x16cf2a0) at
thread/qthread_unix.cpp:331
#9  0x00007f75b36516fa in start_thread (arg=0x7f758784d700) at
pthread_create.c:333
#10 0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f75861eb700 (LWP 6377)):
#0  0x00007f75b36573a0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f75b91acbd4 in QTWTF::TCMalloc_PageHeap::scavengerThread()
(this=0x7f75b9294ee0 <QTWTF::pageheap_memory>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f75b91acc19 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
(context=<optimized out>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f75b36516fa in start_thread (arg=0x7f75861eb700) at
pthread_create.c:333
#4  0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f74fed9c700 (LWP 6378)):
#0  0x00007f75b0c48a64 in g_mutex_unlock (mutex=0x7f74f8000990) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007f75b0c03d49 in g_main_context_check
(context=context@entry=0x7f74f8000990, max_priority=2147483647,
fds=fds@entry=0x7f74f8003120, n_fds=n_fds@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3679
#2  0x00007f75b0c042c0 in g_main_context_iterate
(context=context@entry=0x7f74f8000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3837
#3  0x00007f75b0c0442c in g_main_context_iteration (context=0x7f74f8000990,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f75b479ba9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f74f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f74fed9bc90, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6  0x00007f75b455f8a4 in QThread::exec() (this=this@entry=0x1a00250) at
thread/qthread.cpp:503
#7  0x00007f75b778ded6 in QQuickPixmapReader::run() (this=0x1a00250) at
util/qquickpixmapcache.cpp:817
#8  0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x1a00250) at
thread/qthread_unix.cpp:331
#9  0x00007f75b36516fa in start_thread (arg=0x7f74fed9c700) at
pthread_create.c:333
#10 0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f74eb8c2700 (LWP 6382)):
#0  0x00007ffc224c8a51 in  ()
#1  0x00007ffc224c8cfd in clock_gettime ()
#2  0x00007f75b3e88fb6 in __GI___clock_gettime (clock_id=1,
tp=tp@entry=0x7f74eb8c1a30) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f75b4614c16 in qt_gettime() (ts=0x7f74eb8c1a30, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#4  0x00007f75b4614c16 in qt_gettime() (frac=<synthetic pointer>,
sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#5  0x00007f75b4614c16 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:165
#6  0x00007f75b4799529 in QTimerInfoList::updateCurrentTime()
(this=this@entry=0x7f74e4002cd0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007f75b4799a95 in QTimerInfoList::timerWait(timespec&)
(this=0x7f74e4002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0x00007f75b479ae7e in timerSourcePrepare(GSource*, gint*)
(timeout=0x7f74eb8c1b04, src=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:127
#9  0x00007f75b479ae7e in timerSourcePrepare(GSource*, gint*)
(source=<optimized out>, timeout=timeout@entry=0x7f74eb8c1b04) at
kernel/qeventdispatcher_glib.cpp:160
#10 0x00007f75b0c038ad in g_main_context_prepare
(context=context@entry=0x7f74e4000990, priority=priority@entry=0x7f74eb8c1b90)
at /build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3442
#11 0x00007f75b0c0424b in g_main_context_iterate
(context=context@entry=0x7f74e4000990, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3820
#12 0x00007f75b0c0442c in g_main_context_iteration (context=0x7f74e4000990,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#13 0x00007f75b479ba9b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f74e40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f74eb8c1cc0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#15 0x00007f75b455f8a4 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#16 0x00007f74edda27d7 in KCupsConnection::run() () at
/usr/lib/x86_64-linux-gnu/libkcupslib.so
#17 0x00007f75b456484e in QThreadPrivate::start(void*) (arg=0x2cfb810) at
thread/qthread_unix.cpp:331
#18 0x00007f75b36516fa in start_thread (arg=0x7f74eb8c2700) at
pthread_create.c:333
#19 0x00007f75b3e7ab5d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f75b97628c0 (LWP 6361)):
[KCrash Handler]
#6  0x00007f75b3ed36f6 in __memmove_ssse3_back () at
../sysdeps/x86_64/multiarch/memcpy-ssse3-back.S:1574
#7  0x00007f75973df4ad in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#8  0x00007f75973ddd95 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#9  0x00007f759cf88c1f in Plasma::WindowThumbnail::bindGLXTexture()
(this=this@entry=0x38abf40) at
../../../../src/declarativeimports/core/windowthumbnail.cpp:447
#10 0x00007f759cf89e44 in
Plasma::WindowThumbnail::windowToTextureGLX(Plasma::WindowTextureNode*)
(this=this@entry=0x38abf40, textureNode=textureNode@entry=0x4708700) at
../../../../src/declarativeimports/core/windowthumbnail.cpp:282
#11 0x00007f759cf8a803 in
Plasma::WindowThumbnail::windowToTexture(Plasma::WindowTextureNode*)
(this=0x38abf40, textureNode=0x4708700) at
../../../../src/declarativeimports/core/windowthumbnail.cpp:394
#12 0x00007f759cf8ad24 in Plasma::WindowThumbnail::updatePaintNode(QSGNode*,
QQuickItem::UpdatePaintNodeData*) (this=0x38abf40, oldNode=<optimized out>,
updatePaintNodeData=<optimized out>) at
../../../../src/declarativeimports/core/windowthumbnail.cpp:199
#13 0x00007f75b782c2d8 in QQuickWindowPrivate::updateDirtyNode(QQuickItem*)
(this=this@entry=0x4a7df50, item=item@entry=0x38abf40) at
items/qquickwindow.cpp:2984
#14 0x00007f75b782cb4b in QQuickWindowPrivate::updateDirtyNodes()
(this=this@entry=0x4a7df50) at items/qquickwindow.cpp:2722
#15 0x00007f75b782ccc0 in QQuickWindowPrivate::syncSceneGraph()
(this=this@entry=0x4a7df50) at items/qquickwindow.cpp:341
#16 0x00007f75b77fb12c in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*)
(this=this@entry=0x147a060, window=0x3af05e0) at
scenegraph/qsgrenderloop.cpp:372
#17 0x00007f75b77fcaa6 in
QSGGuiThreadRenderLoop::exposureChanged(QQuickWindow*) (this=0x147a060,
window=0x3af05e0) at scenegraph/qsgrenderloop.cpp:422
#18 0x00007f75b4a902e5 in QWindow::event(QEvent*) (this=this@entry=0x3af05e0,
ev=ev@entry=0x7ffc2247a110) at kernel/qwindow.cpp:2060
#19 0x00007f75b7836871 in QQuickWindow::event(QEvent*)
(this=this@entry=0x3af05e0, e=e@entry=0x7ffc2247a110) at
items/qquickwindow.cpp:1413
#20 0x00007f75b92dd2eb in PlasmaQuick::Dialog::event(QEvent*)
(this=this@entry=0x3af05e0, event=event@entry=0x7ffc2247a110) at
../../../src/plasmaquick/dialog.cpp:1168
#21 0x00007f759cf82c45 in ToolTipDialog::event(QEvent*) (this=0x3af05e0,
e=0x7ffc2247a110) at
../../../../src/declarativeimports/core/tooltipdialog.cpp:120
#22 0x00007f75b524805c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x12bf680, receiver=receiver@entry=0x3af05e0,
e=e@entry=0x7ffc2247a110) at kernel/qapplication.cpp:3716
#23 0x00007f75b524d516 in QApplication::notify(QObject*, QEvent*)
(this=0x7ffc2247a530, receiver=0x3af05e0, e=0x7ffc2247a110) at
kernel/qapplication.cpp:3499
#24 0x00007f75b474562b in QCoreApplication::notifyInternal(QObject*, QEvent*)
(this=0x7ffc2247a530, receiver=receiver@entry=0x3af05e0,
event=event@entry=0x7ffc2247a110) at kernel/qcoreapplication.cpp:965
#25 0x00007f75b4a884ec in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
(event=0x7ffc2247a110, receiver=0x3af05e0) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#26 0x00007f75b4a884ec in
QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*)
(e=0x49e8c70) at kernel/qguiapplication.cpp:2663
#27 0x00007f75b4a8925d in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
(e=e@entry=0x49e8c70) at kernel/qguiapplication.cpp:1658
#28 0x00007f75b4a6cf38 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(flags=...) at kernel/qwindowsysteminterface.cpp:625
#29 0x00007f75a6c29f10 in userEventSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at
eventdispatchers/qeventdispatcher_glib.cpp:70
#30 0x00007f75b0c04127 in g_main_context_dispatch (context=0x7f75a00016f0) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3154
#31 0x00007f75b0c04127 in g_main_context_dispatch
(context=context@entry=0x7f75a00016f0) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3769
#32 0x00007f75b0c04380 in g_main_context_iterate
(context=context@entry=0x7f75a00016f0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3840
#33 0x00007f75b0c0442c in g_main_context_iteration (context=0x7f75a00016f0,
may_block=may_block@entry=1) at
/build/glib2.0-t9oPgV/glib2.0-2.48.0/./glib/gmain.c:3901
#34 0x00007f75b479ba7f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x12fe770, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#35 0x00007f75b4742dea in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7ffc2247a3d0, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#36 0x00007f75b474ae8c in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1229
#37 0x00007f75b4a7ec3c in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1542
#38 0x00007f75b5244495 in QApplication::exec() () at
kernel/qapplication.cpp:2976
#39 0x0000000000432d4a in main(int, char**) (argc=4, argv=<optimized out>) at
/build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Reported using DrKonqi

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