Application: plasmashell (5.17.4)

Qt Version: 5.13.2
Frameworks Version: 5.64.0
Operating System: Linux 5.0.0-37-generic x86_64
Distribution: KDE neon User Edition 5.17

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

Used the network manager widget to connect to an existing VPN connection

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 0x7fdb14b84800 (LWP 16328))]

Thread 13 (Thread 0x7fda9d9ce700 (LWP 30317)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cb4094870) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cb4094820, cond=0x560cb4094848) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cb4094848, mutex=0x560cb4094820) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560cb4094820) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x560cb24e3840, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x560cb24e3848, mutex=mutex@entry=0x560cb24e3840, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e5ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x560cb24e3838) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fdb129e5ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x560cb24e37c0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fdb129e62fa in QSGRenderThread::run() (this=0x560cb24e37c0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cb24e37c0) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fda9d9ce700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fda9e1cf700 (LWP 23947)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cb297ee94) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cb297ee40, cond=0x560cb297ee68) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cb297ee68, mutex=0x560cb297ee40) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560cb297ee40) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x7fdaf801a780, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x7fdaf801a788, mutex=mutex@entry=0x7fdaf801a780, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e5ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x7fdaf801a778) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fdb129e5ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x7fdaf801a700) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fdb129e62fa in QSGRenderThread::run() (this=0x7fdaf801a700) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x7fdaf801a700) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fda9e1cf700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fdabb7fe700 (LWP 32567)):
[KCrash Handler]
#6  0x00007fdadc3125d1 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#7  0x00007fdb0ebd09ef in QtPrivate::QSlotObjectBase::call(QObject*, void**) (a=0x7fdabb7fdc00, r=0x560cb9204ad0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#8  0x00007fdb0ebd09ef in QMetaObject::activate(QObject*, int, int, void**) (sender=sender@entry=0x560cb04bfa70, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=<optimized out>, argv@entry=0x0) at kernel/qobject.cpp:3789
#9  0x00007fdb0ebd0f97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=sender@entry=0x560cb04bfa70, m=m@entry=0x7fdb12eb5860 <QQuickWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3660
#10 0x00007fdb12a34733 in QQuickWindow::beforeRendering() (this=this@entry=0x560cb04bfa70) at .moc/moc_qquickwindow.cpp:527
#11 0x00007fdb12a39f80 in QQuickWindowPrivate::renderSceneGraph(QSize const&) (this=this@entry=0x560cb0238780, size=...) at items/qquickwindow.cpp:462
#12 0x00007fdb129e2512 in QSGRenderThread::syncAndRender() (this=this@entry=0x560cb063ef20) at scenegraph/qsgthreadedrenderloop.cpp:646
#13 0x00007fdb129e62b8 in QSGRenderThread::run() (this=0x560cb063ef20) at scenegraph/qsgthreadedrenderloop.cpp:730
#14 0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cb063ef20) at thread/qthread_unix.cpp:360
#15 0x00007fdb0b8ec6db in start_thread (arg=0x7fdabb7fe700) at pthread_create.c:463
#16 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fdabbfff700 (LWP 27944)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cb3ae8e34) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cb3ae8de0, cond=0x560cb3ae8e08) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cb3ae8e08, mutex=0x560cb3ae8de0) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560cb3ae8de0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x560cb3dff040, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x560cb3dff048, mutex=mutex@entry=0x560cb3dff040, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e5ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x560cb3dff038) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fdb129e5ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x560cb3dfefc0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fdb129e62fa in QSGRenderThread::run() (this=0x560cb3dfefc0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cb3dfefc0) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdabbfff700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fdac140b700 (LWP 16763)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cb08d2f04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cb08d2eb0, cond=0x560cb08d2ed8) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cb08d2ed8, mutex=0x560cb08d2eb0) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560cb08d2eb0) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x560cb08ff920, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x560cb08ff928, mutex=mutex@entry=0x560cb08ff920, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e5ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x560cb08ff918) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fdb129e5ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x560cb08ff8a0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fdb129e62fa in QSGRenderThread::run() (this=0x560cb08ff8a0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cb08ff8a0) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdac140b700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fdac3aa2700 (LWP 16741)):
#0  0x00007fdb08229649 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdb081e3156 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdb081e3650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdb081e36dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdb0ebfdb9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fdabc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fdb0eb9e06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdac3aa1d60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007fdb0e9b93aa in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007fdac6400197 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cb07e1b90) at thread/qthread_unix.cpp:360
#9  0x00007fdb0b8ec6db in start_thread (arg=0x7fdac3aa2700) at pthread_create.c:463
#10 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fdada6a6700 (LWP 16557)):
#0  0x00007fdb0e2a60b4 in __GI___libc_read (fd=23, buf=0x7fdada6a5b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fdb082282d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdb081e30b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdb081e3570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdb081e36dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdb0ebfdb9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fdacc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fdb0eb9e06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdada6a5d30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fdb0e9b93aa in QThread::exec() (this=this@entry=0x7fdaec0725d0) at thread/qthread.cpp:531
#8  0x00007fdb1295fac6 in QQuickPixmapReader::run() (this=0x7fdaec0725d0) at util/qquickpixmapcache.cpp:962
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x7fdaec0725d0) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdada6a6700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fdadaf63700 (LWP 16506)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560caebd4960) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560caebd4910, cond=0x560caebd4938) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560caebd4938, mutex=0x560caebd4910) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560caebd4910) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x560caebc7150, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=this@entry=0x560caebc7158, mutex=mutex@entry=0x560caebc7150, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e5ec8 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x560caebc7148) at scenegraph/qsgthreadedrenderloop.cpp:245
#7  0x00007fdb129e5ec8 in QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x560caebc70d0) at scenegraph/qsgthreadedrenderloop.cpp:710
#8  0x00007fdb129e62fa in QSGRenderThread::run() (this=0x560caebc70d0) at scenegraph/qsgthreadedrenderloop.cpp:739
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560caebc70d0) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdadaf63700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fdae928c700 (LWP 16464)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cae6e2cf8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cae6e2ca8, cond=0x560cae6e2cd0) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cae6e2cd0, mutex=0x560cae6e2ca8) at pthread_cond_wait.c:655
#3  0x00007fdaea55f2cb in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fdaea55eff7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fdb0b8ec6db in start_thread (arg=0x7fdae928c700) at pthread_create.c:463
#6  0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fdaf6da3700 (LWP 16436)):
#0  0x00007fdb0e2a60b4 in __GI___libc_read (fd=18, buf=0x7fdaf6da2b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fdb082282d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdb081e30b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdb081e3570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdb081e36dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdb0ebfdb9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fdaec000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fdb0eb9e06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdaf6da2d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fdb0e9b93aa in QThread::exec() (this=this@entry=0x560cae564930) at thread/qthread.cpp:531
#8  0x00007fdb1248d815 in QQmlThreadPrivate::run() (this=0x560cae564930) at qml/ftw/qqmlthread.cpp:152
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cae564930) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdaf6da3700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fdafce37700 (LWP 16345)):
#0  0x00007fdb0e2a60b4 in __GI___libc_read (fd=15, buf=0x7fdafce36b60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fdb082282d0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdb081e30b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdb081e3570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdb081e36dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdb0ebfdb9b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fdaf0000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fdb0eb9e06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fdafce36d70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007fdb0e9b93aa in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:531
#8  0x00007fdb0fcb20e5 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x7fdb0ff29d80) at thread/qthread_unix.cpp:360
#10 0x00007fdb0b8ec6db in start_thread (arg=0x7fdafce37700) at pthread_create.c:463
#11 0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fdaff021700 (LWP 16337)):
#0  0x00007fdb0e2aabf9 in __GI___poll (fds=0x7fdaff020ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fdb135bd747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdb135bf36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdb019f2e10 in QXcbEventQueue::run() (this=0x560cae355cb0) at qxcbeventqueue.cpp:228
#4  0x00007fdb0e9bab52 in QThreadPrivate::start(void*) (arg=0x560cae355cb0) at thread/qthread_unix.cpp:360
#5  0x00007fdb0b8ec6db in start_thread (arg=0x7fdaff021700) at pthread_create.c:463
#6  0x00007fdb0e2b788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fdb14b84800 (LWP 16328)):
#0  0x00007fdb0b8f29f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560cae566494) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fdb0b8f29f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x560cae566440, cond=0x560cae566468) at pthread_cond_wait.c:502
#2  0x00007fdb0b8f29f3 in __pthread_cond_wait (cond=0x560cae566468, mutex=0x560cae566440) at pthread_cond_wait.c:655
#3  0x00007fdb0e9c1aeb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., this=0x560cae566440) at thread/qwaitcondition_unix.cpp:146
#4  0x00007fdb0e9c1aeb in QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=<optimized out>, mutex=0x560cb063ef60, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007fdb0e9c1df9 in QWaitCondition::wait(QMutex*, unsigned long) (this=0x560cb063ef68, mutex=0x560cb063ef60, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#6  0x00007fdb129e30ed in QSGThreadedRenderLoop::polishAndSync(QSGThreadedRenderLoop::Window*, bool) (this=this@entry=0x560cae9f0660, w=<optimized out>, inExpose=inExpose@entry=false) at scenegraph/qsgthreadedrenderloop.cpp:1217
#7  0x00007fdb129e3c2a in QSGThreadedRenderLoop::handleUpdateRequest(QQuickWindow*) (this=0x560cae9f0660, window=0x560cb04bfa70) at scenegraph/qsgthreadedrenderloop.cpp:1042
#8  0x00007fdb12a45be4 in QQuickWindow::event(QEvent*) (this=this@entry=0x560cb04bfa70, e=e@entry=0x7ffd65c90280) at items/qquickwindow.cpp:1676
#9  0x00007fdb1478e4db in PlasmaQuick::Dialog::event(QEvent*) (this=0x560cb04bfa70, event=0x7ffd65c90280) at ./src/plasmaquick/dialog.cpp:1319
#10 0x00007fdb1050aeac in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x560cae336f80, receiver=receiver@entry=0x560cb04bfa70, e=e@entry=0x7ffd65c90280) at kernel/qapplication.cpp:3703
#11 0x00007fdb105124b0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffd65c908d0, receiver=0x560cb04bfa70, e=0x7ffd65c90280) at kernel/qapplication.cpp:3449
#12 0x00007fdb0eb9ff08 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x560cb04bfa70, event=0x7ffd65c90280) at kernel/qcoreapplication.cpp:1095
#13 0x00007fdb0f164f83 in QPlatformWindow::deliverUpdateRequest() (this=<optimized out>) at kernel/qplatformwindow.cpp:793
#14 0x00007fdb0f164f83 in QPlatformWindow::windowEvent(QEvent*) (this=<optimized out>, event=<optimized out>) at kernel/qplatformwindow.cpp:478
#15 0x00007fdb105124cb in QApplication::notify(QObject*, QEvent*) (this=0x7ffd65c908d0, receiver=0x560cb04bfa70, e=0x7ffd65c90530) at kernel/qapplication.cpp:2909
#16 0x00007fdb0eb9ff08 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x560cb04bfa70, event=0x7ffd65c90530) at kernel/qcoreapplication.cpp:1095
#17 0x00007fdb0ebfd009 in QTimerInfoList::activateTimers() (this=0x560cae390b90) at kernel/qtimerinfo_unix.cpp:643
#18 0x00007fdb0ebfd7d1 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#19 0x00007fdb081e3417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fdb081e3650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fdb081e36dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fdb0ebfdb7f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x560cae390700, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#23 0x00007fdb0eb9e06a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd65c90780, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#24 0x00007fdb0eba73e0 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1403
#25 0x0000560cac6becef in main(int, char**) (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:219

Possible duplicates by query: bug 415067, bug 415058, bug 415043, bug 415040, bug 415026.

Reported using DrKonqi