Application: plasmashell (5.12.9)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-147-generic x86_64
Distribution: Ubuntu 18.04.5 LTS

-- Information about the crash:
- What I was doing when the application crashed:
just click on "disconnect" button of my ethernet network. Then the screen become black for some seconds. Then all restart working properly.

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 0x7f3b3faadd80 (LWP 5507))]

Thread 19 (Thread 0x7f3a1bfff700 (LWP 15674)):
[KCrash Handler]
#6  0x00007f3b3d4e9640 in QSGSimpleTextureNode::texture() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3a86483963 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007f3b399a266f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3b3d56ba30 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f3b3d516bbc in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f3b3d51bac8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f3b389166db in start_thread (arg=0x7f3a1bfff700) at pthread_create.c:463
#14 0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f3a2e49e700 (LWP 15427)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ed0e1944) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ed0e18f0, cond=0x55d4ed0e1918) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ed0e1918, mutex=0x55d4ed0e18f0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a2e49e700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f3a2f68f700 (LWP 13557)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ed0a2954) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ed0a2900, cond=0x55d4ed0a2928) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ed0a2928, mutex=0x55d4ed0a2900) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a2f68f700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f3a4d98c700 (LWP 13094)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ea8666f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ea8666a0, cond=0x55d4ea8666c8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ea8666c8, mutex=0x55d4ea8666a0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a4d98c700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f3a4d18b700 (LWP 6411)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ece0f224) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ece0f1d0, cond=0x55d4ece0f1f8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ece0f1f8, mutex=0x55d4ece0f1d0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a4d18b700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f3a4e3fd700 (LWP 6179)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ebd29120) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ebd290d0, cond=0x55d4ebd290f8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ebd290f8, mutex=0x55d4ebd290d0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a4e3fd700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f3a4ebfe700 (LWP 6170)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4eb751624) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4eb7515d0, cond=0x55d4eb7515f8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4eb7515f8, mutex=0x55d4eb7515d0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a4ebfe700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f3a555c0700 (LWP 6160)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4eb48b7f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4eb48b7a0, cond=0x55d4eb48b7c8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4eb48b7c8, mutex=0x55d4eb48b7a0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a555c0700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f3a57661700 (LWP 6122)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4eb512cb0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4eb512c60, cond=0x55d4eb512c88) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4eb512c88, mutex=0x55d4eb512c60) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a57661700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f3a5ecc7700 (LWP 6047)):
#0  0x00007f3b39083cb9 in __GI___poll (fds=0x7f3a580060d0, nfds=1, timeout=1977513) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3b33beb6e9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b399cc8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b3979023a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3a61626747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b389166db in start_thread (arg=0x7f3a5ecc7700) at pthread_create.c:463
#9  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f3a6dffe700 (LWP 5946)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ea938194) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ea938140, cond=0x55d4ea938168) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ea938168, mutex=0x55d4ea938140) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a6dffe700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f3a75110700 (LWP 5940)):
#0  0x00007f3b39085e1f in __GI___select (nfds=46, readfds=0x7f3a7510fd60, writefds=0x0, exceptfds=0x0, timeout=0x7f3a7510fd50) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00007f3a8ee69991 in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.460.80
#2  0x00007f3a8ee6747a in  () at /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.460.80
#3  0x00007f3b389166db in start_thread (arg=0x7f3a75110700) at pthread_create.c:463
#4  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f3a75911700 (LWP 5896)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ea5de324) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ea5de2d0, cond=0x55d4ea5de2f8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ea5de2f8, mutex=0x55d4ea5de2d0) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d51b6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d51bb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b389166db in start_thread (arg=0x7f3a75911700) at pthread_create.c:463
#8  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3a84ca4700 (LWP 5811)):
#0  0x00007f3b3907f184 in __GI___libc_read (fd=32, buf=0x7f3a84ca3b20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f3b33c304c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b33beb1d7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b33beb690 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b399cc8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b3979023a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b3d49c2a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3b389166db in start_thread (arg=0x7f3a84ca4700) at pthread_create.c:463
#11 0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3b18f1e700 (LWP 5668)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f3b3f471fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f3b3f471f68, cond=0x7f3b3f471f90) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x7f3b3f471f90, mutex=0x7f3b3f471f68) at pthread_cond_wait.c:655
#3  0x00007f3b3f17b5f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f3b3f17b639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f3b389166db in start_thread (arg=0x7f3b18f1e700) at pthread_create.c:463
#6  0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3b1b395700 (LWP 5615)):
#0  0x00007f3b3907f184 in __GI___libc_read (fd=11, buf=0x7f3b1b394b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f3b33c304c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b33beb1d7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b33beb690 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b399cc8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b3979023a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b3c9026f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3b389166db in start_thread (arg=0x7f3b1b395700) at pthread_create.c:463
#11 0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3b214d1700 (LWP 5611)):
#0  0x00007f3b3907f184 in __GI___libc_read (fd=10, buf=0x7f3b214d0b70, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f3b33c304c0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b33beb1d7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b33beb690 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3b399cc8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b3979023a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f3b3c9026f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f3b389166db in start_thread (arg=0x7f3b214d1700) at pthread_create.c:463
#11 0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3b22f16700 (LWP 5536)):
#0  0x00007f3b33c31839 in g_mutex_lock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f3b33beac53 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3b33beb61b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3b399cc8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f3b3979023a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f3b39e49d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f3b3979517d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f3b389166db in start_thread (arg=0x7f3b22f16700) at pthread_create.c:463
#10 0x00007f3b3909071f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3b3faadd80 (LWP 5507)):
#0  0x00007f3b3891cad3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d4ee04bbd0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f3b3891cad3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d4ee04bb80, cond=0x55d4ee04bba8) at pthread_cond_wait.c:502
#2  0x00007f3b3891cad3 in __pthread_cond_wait (cond=0x55d4ee04bba8, mutex=0x55d4ee04bb80) at pthread_cond_wait.c:655
#3  0x00007f3b397965ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f3b3d517e7d in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f3b3d518c52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f3b3d575726 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f3b3f4af323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#8  0x00007f3b3a97b83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f3b3a983104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f3b399738d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f3b3a1cb1a1 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f3b3a1cb6b9 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f3b3d5756c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f3b3f4af323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#15 0x00007f3b3a97b83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f3b3a983104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f3b399738d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f3b399cbd2e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f3b399cc4f1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f3b33beb537 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f3b33beb770 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f3b33beb7fc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f3b399cc88f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f3b3997190a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f3b3997a9b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000055d4e7a13d6a in  ()
#27 0x00007f3b38f90bf7 in __libc_start_main (main=0x55d4e7a13390, argc=1, argv=0x7ffc207d9c38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc207d9c28) at ../csu/libc-start.c:310
#28 0x000055d4e7a1410a in _start ()

Reported using DrKonqi