Bug 409326

Summary: [Wayland] Plasma Kickoff/Kickstart progressive slow down to crash/not responsive menu button
Product: [Plasma] plasmashell Reporter: Marco Cilloni <mccilloni>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: alois1, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.16.2   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Marco Cilloni 2019-06-30 10:48:48 UTC 
Application: plasmashell (5.16.2)

Qt Version: 5.12.4
Frameworks Version: 5.59.0
Operating System: Linux 5.1.15-arch1-1-ARCH x86_64
Distribution: "Arch Linux"

-- Information about the crash:
- What I was doing when the application crashed:
Trying to open the plasma menu (either the application launcher or the application menu)

- Unusual behavior I noticed:
Cascading popup menus become slower and laggier, until everything crashes (sometimes). If the system doesn't crash, the application menu doesn't open anymore (the button becomes highlighed, but doesn't do anything. Same with the application launcher.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd88f644880 (LWP 16763))]

Thread 30 (Thread 0x7fd806dfd700 (LWP 28159)):
[KCrash Handler]
#6  0x00007fd893f5ce95 in wl_proxy_set_queue () at /usr/lib/libwayland-client.so.0
#7  0x00007fd88f273c11 in QtWaylandClient::QWaylandWindow::waitForFrameSync(int) () at /usr/lib/libQt5WaylandClient.so.5
#8  0x00007fd896a90eb4 in  () at /usr/lib/qt/plugins/platforms/libqwayland-egl.so
#9  0x00007fd894a66142 in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/libQt5Gui.so.5
#10 0x00007fd89625b82e in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007fd89625f6f8 in  () at /usr/lib/libQt5Quick.so.5
#12 0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 29 (Thread 0x7fd8075fe700 (LWP 28158)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 28 (Thread 0x7fd807fff700 (LWP 28061)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd894489cf0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd894489de2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fd89625f4cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd89625f73c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 27 (Thread 0x7fd81c907700 (LWP 28060)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 26 (Thread 0x7fd81dc46700 (LWP 27674)):
#0  0x00007fd89410718c in read () at /usr/lib/libc.so.6
#1  0x00007fd89279c961 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd8927ecf70 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd8927ee766 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd8927ee8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fd8946a027c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd8946473ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fd8944829c5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7fd81ffff700 (LWP 22357)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd894489cf0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd894489de2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fd89625f4cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd89625f73c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7fd824f60700 (LWP 22352)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7fd82671e700 (LWP 22349)):
#0  0x00007fd89410718c in read () at /usr/lib/libc.so.6
#1  0x00007fd89279c961 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd8927ecf70 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd8927ee766 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd8927ee8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fd8946a027c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd8946473ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fd8944829c5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fd8961d6feb in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7fd8415eb700 (LWP 18394)):
#0  0x00007fd89410718c in read () at /usr/lib/libc.so.6
#1  0x00007fd89279c961 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd8927ecf70 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd8927ee766 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd8927ee8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fd8946a027c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd8946473ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fd8944829c5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fd895f0a969 in  () at /usr/lib/libQt5Qml.so.5
#9  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7fd8427fc700 (LWP 17693)):
#0  0x00007fd89410b667 in poll () at /usr/lib/libc.so.6
#1  0x00007fd8927ee7c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd8927ee8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd8946a027c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd8946473ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd8944829c5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd894f5ab37 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fd894483bf0 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7fd842ffd700 (LWP 17461)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7fd8437fe700 (LWP 17460)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7fd843fff700 (LWP 17458)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7fd860ff9700 (LWP 17456)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fd8617fa700 (LWP 17453)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7fd861ffb700 (LWP 17451)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fd8627fc700 (LWP 17449)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fd862ffd700 (LWP 17447)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fd8637fe700 (LWP 17444)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fd863fff700 (LWP 17442)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fd880ff9700 (LWP 17440)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fd8817fa700 (LWP 17437)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fd881ffb700 (LWP 17436)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fd8827fc700 (LWP 17435)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fd882ffd700 (LWP 17434)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fd8837fe700 (LWP 17433)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fd883fff700 (LWP 17432)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fd888bfc700 (LWP 17431)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fd889549700 (LWP 17430)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd88e4e47bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fd88e4e43b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fd89375d57f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fd8941160e3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fd88f644880 (LWP 16763)):
#0  0x00007fd893763415 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd894489cf0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fd894489de2 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fd89625cb37 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fd89625cc34 in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fd894a3410d in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#6  0x00007fd8962c09bc in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#7  0x00007fd896a1a52c in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/libKF5PlasmaQuick.so.5
#8  0x00007fd8951c5485 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#9  0x00007fd8951ce9b1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#10 0x00007fd894648782 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#11 0x00007fd894a33ccd in QWindowPrivate::setVisible(bool) () at /usr/lib/libQt5Gui.so.5
#12 0x00007fd896a1757e in PlasmaQuick::Dialog::setVisible(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#13 0x00007fd896a19d9b in  () at /usr/lib/libKF5PlasmaQuick.so.5
#14 0x00007fd895ede8b1 in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007fd895edf1f8 in  () at /usr/lib/libQt5Qml.so.5
#16 0x00007fd895edba43 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fd895eb7193 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#18 0x00007fd895e5a9b4 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#19 0x00007fd894673bcf in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#20 0x00007fd896a0cf73 in PlasmaQuick::AppletQuickItem::expandedChanged(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#21 0x00007fd896a1209e in PlasmaQuick::AppletQuickItem::setExpanded(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#22 0x00007fd896a13011 in  () at /usr/lib/libKF5PlasmaQuick.so.5
#23 0x00007fd896a14d6b in PlasmaQuick::AppletQuickItem::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib/libKF5PlasmaQuick.so.5
#24 0x00007fd8405906a6 in  () at /usr/lib/qt/plugins/plasma/scriptengines/plasma_appletscript_declarative.so
#25 0x00007fd895e6d7c3 in  () at /usr/lib/libQt5Qml.so.5
#26 0x00007fd895e6a42b in QQmlPropertyPrivate::write(QObject*, QQmlPropertyData const&, QVariant const&, QQmlContextData*, QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#27 0x00007fd895db0e4d in QV4::QObjectWrapper::setProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData*, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#28 0x00007fd895db1857 in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () at /usr/lib/libQt5Qml.so.5
#29 0x00007fd895db1975 in QV4::QObjectWrapper::virtualPut(QV4::Managed*, QV4::PropertyKey, QV4::Value const&, QV4::Value*) () at /usr/lib/libQt5Qml.so.5
#30 0x00007fd895d2da11 in  () at /usr/lib/libQt5Qml.so.5
#31 0x00007fd895dc9c74 in  () at /usr/lib/libQt5Qml.so.5
#32 0x00007fd895dce72f in  () at /usr/lib/libQt5Qml.so.5
#33 0x00007fd895d5c0e4 in QV4::Function::call(QV4::Value const*, QV4::Value const*, int, QV4::ExecutionContext const*) () at /usr/lib/libQt5Qml.so.5
#34 0x00007fd895ed49b8 in QQmlJavaScriptExpression::evaluate(QV4::CallData*, bool*) () at /usr/lib/libQt5Qml.so.5
#35 0x00007fd895e78788 in QQmlBoundSignalExpression::evaluate(void**) () at /usr/lib/libQt5Qml.so.5
#36 0x00007fd895e7993c in  () at /usr/lib/libQt5Qml.so.5
#37 0x00007fd895eb7193 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#38 0x00007fd895e5a9b4 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#39 0x00007fd894673bcf in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#40 0x00007fd89633ae73 in QQuickMouseArea::clicked(QQuickMouseEvent*) () at /usr/lib/libQt5Quick.so.5
#41 0x00007fd89633c7a8 in QQuickMouseArea::setPressed(Qt::MouseButton, bool, Qt::MouseEventSource) () at /usr/lib/libQt5Quick.so.5
#42 0x00007fd89633d922 in QQuickMouseArea::mouseReleaseEvent(QMouseEvent*) () at /usr/lib/libQt5Quick.so.5
#43 0x00007fd8962a2c88 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#44 0x00007fd8951c5485 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#45 0x00007fd8951ce9b1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#46 0x00007fd894648782 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#47 0x00007fd8962bd661 in QQuickWindowPrivate::deliverMouseEvent(QQuickPointerMouseEvent*) () at /usr/lib/libQt5Quick.so.5
#48 0x00007fd8962be91c in QQuickWindowPrivate::deliverPointerEvent(QQuickPointerEvent*) () at /usr/lib/libQt5Quick.so.5
#49 0x00007fd8962bf689 in QQuickWindowPrivate::handleMouseEvent(QMouseEvent*) () at /usr/lib/libQt5Quick.so.5
#50 0x00007fd894a3410d in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#51 0x00007fd8962c09bc in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#52 0x00005612304f6b72 in  ()
#53 0x00007fd8951c5485 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#54 0x00007fd8951ce9b1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#55 0x00007fd894648782 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#56 0x00007fd894a292a4 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib/libQt5Gui.so.5
#57 0x00007fd894a2ab5b in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#58 0x00007fd894a0468c in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#59 0x00007fd88f2aa6f1 in  () at /usr/lib/libQt5WaylandClient.so.5
#60 0x00007fd8927ec90f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#61 0x00007fd8927ee869 in  () at /usr/lib/libglib-2.0.so.0
#62 0x00007fd8927ee8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#63 0x00007fd8946a0263 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#64 0x00007fd8946473ac in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#65 0x00007fd89464f056 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#66 0x00005612304dedf6 in  ()
#67 0x00007fd894040ee3 in __libc_start_main () at /usr/lib/libc.so.6
#68 0x00005612304df2ae in _start ()
[Inferior 1 (process 16763) detached]

Reported using DrKonqi
Comment 1 Alois Wohlschlager 2019-06-30 14:20:29 UTC 
This is the crash. Also see #408159 for the non-opening menus and [0] for the laggy animations.

[0] https://bugreports.qt.io/browse/QTBUG-76397?workflowName=Qt+Bug+Tracking+v2.3&stepId=5

*** This bug has been marked as a duplicate of bug 409021 ***