Bug 409014

Summary: Plasma (Wayland) crashed after pressing the meta key four times in a short time.
Product: [Plasma] plasmashell Reporter: Adrian Wannenmacher <adiw206>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.16.1   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Adrian Wannenmacher 2019-06-21 22:06:02 UTC 
Application: plasmashell (5.16.1)

Qt Version: 5.12.4
Frameworks Version: 5.59.0
Operating System: Linux 5.1.11-arch1-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
I just logged into my system and wanted to start an application from the default application launcher. When I pressed the meta key the first time, the background of the menu appeared first and then the application icons and names slowly faded in. As I didn't expect that to happen, I decided to press the button two more times to reopen the menu and it seemingly worked. But when I pressed the button again to close the menu, plasma crashed.

After a crash plasma is automatically restarted. If its the first restart, I can trigger the crash like I described before. If its the second restart, the menu doesn't appear any more. The only thing that happens is that a blue litte bar appears (or disappears) above the icon to indicate that its active. I also can't trigger the crash any more.

I tried to re-login and to restart the system, but plasma keeps crashing if i press the meta key four times is a short period of time.

I also tried what happens if I press the button with some distance between each hit and in that case plasma doesn't crash.

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 0x7fac24633880 (LWP 23000))]

Thread 26 (Thread 0x7fabb13f5700 (LWP 23331)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac230148dc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac230149ca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac24dc74cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fac24dc773c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 25 (Thread 0x7fabb1bf6700 (LWP 23330)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7fabb23f7700 (LWP 23277)):
[KCrash Handler]
#6  0x00007fac22adde94 in wl_proxy_marshal_constructor () at /usr/lib/libwayland-client.so.0
#7  0x00007fac1dc5019b in QtWaylandClient::QWaylandWindow::handleUpdate() () at /usr/lib/libQt5WaylandClient.so.5
#8  0x00007fac16c40d78 in  () at /usr/lib/qt/plugins/wayland-graphics-integration-client/libqt-plugin-wayland-egl.so
#9  0x00007fac235e22f0 in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/libQt5Gui.so.5
#10 0x00007fac24dc382e in  () at /usr/lib/libQt5Quick.so.5
#11 0x00007fac24dc76f8 in  () at /usr/lib/libQt5Quick.so.5
#12 0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#13 0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7fabb2bf8700 (LWP 23276)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7fabb33f9700 (LWP 23235)):
#0  0x00007fac222c772c in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac23014859 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac23014998 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac23011e6b in  () at /usr/lib/libQt5Core.so.5
#4  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7fabcffff700 (LWP 23234)):
#0  0x00007fac22c91497 in poll () at /usr/lib/libc.so.6
#1  0x00007fac2130d7c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7fabccbae700 (LWP 23232)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac230148dc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac230149ca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac24dc74cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fac24dc773c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7fabb3fff700 (LWP 23231)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7fabcd3af700 (LWP 23226)):
#0  0x00007fac222c772c in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac23014859 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac23014998 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac23011e6b in  () at /usr/lib/libQt5Core.so.5
#4  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7fabcdc2d700 (LWP 23213)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac230148dc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac230149ca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac24dc74cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fac24dc773c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fabcf7fe700 (LWP 23212)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7fabd4e4f700 (LWP 23170)):
#0  0x00007fac22c91497 in poll () at /usr/lib/libc.so.6
#1  0x00007fac2130d7c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fabd591f700 (LWP 23156)):
#0  0x00007fac212bb414 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fac2130d77d in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fabd654933a in KCupsConnection::run() () at /usr/lib/libkcupslib.so
#7  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fabe977b700 (LWP 23107)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac230148dc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac230149ca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac24dc74cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fac24dc773c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fabe9f7c700 (LWP 23106)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fabeaf67700 (LWP 23103)):
#0  0x00007fac22c91497 in poll () at /usr/lib/libc.so.6
#1  0x00007fac2130d7c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fac24d3efeb in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fac09b23700 (LWP 23082)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fac0a324700 (LWP 23081)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fac0ab25700 (LWP 23080)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fac0b326700 (LWP 23078)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fac0bb27700 (LWP 23077)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fac14aaf700 (LWP 23076)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fac1540f700 (LWP 23074)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac15f1b6bc in  () at /usr/lib/dri/radeonsi_dri.so
#2  0x00007fac15f1b2b8 in  () at /usr/lib/dri/radeonsi_dri.so
#3  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fac17fff700 (LWP 23049)):
#0  0x00007fac212bb414 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fac2130d07d in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d6e6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fac24a70969 in  () at /usr/lib/libQt5Qml.so.5
#8  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fac1d46f700 (LWP 23040)):
#0  0x00007fac22c91497 in poll () at /usr/lib/libc.so.6
#1  0x00007fac2130d7c0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fac2321f094 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fac2300d1f9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fac23abcba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fac2300e5fc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fac222c157f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fac22c9bf13 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fac24633880 (LWP 23000)):
#0  0x00007fac222c73c5 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fac230148dc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2  0x00007fac230149ca in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3  0x00007fac24dc4b37 in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007fac24dc4c34 in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007fac235b0f05 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#6  0x00007fac24e289bc in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#7  0x00007fac255a852c in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/libKF5PlasmaQuick.so.5
#8  0x00007fac23d28da4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#9  0x00007fac23d303c1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#10 0x00007fac231c9ef9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#11 0x00007fac235b0aff in QWindowPrivate::setVisible(bool) () at /usr/lib/libQt5Gui.so.5
#12 0x00007fac255a557e in PlasmaQuick::Dialog::setVisible(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#13 0x00007fac255a7d9b in  () at /usr/lib/libKF5PlasmaQuick.so.5
#14 0x00007fac24a448b1 in  () at /usr/lib/libQt5Qml.so.5
#15 0x00007fac24a451f8 in  () at /usr/lib/libQt5Qml.so.5
#16 0x00007fac24a41a43 in QQmlBinding::update(QFlags<QQmlPropertyData::WriteFlag>) () at /usr/lib/libQt5Qml.so.5
#17 0x00007fac24a1d193 in QQmlNotifier::emitNotify(QQmlNotifierEndpoint*, void**) () at /usr/lib/libQt5Qml.so.5
#18 0x00007fac249c09b4 in QQmlData::signalEmitted(QAbstractDeclarativeData*, QObject*, int, void**) () at /usr/lib/libQt5Qml.so.5
#19 0x00007fac231f420f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#20 0x00007fac2559af73 in PlasmaQuick::AppletQuickItem::expandedChanged(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#21 0x00007fac255a009e in PlasmaQuick::AppletQuickItem::setExpanded(bool) () at /usr/lib/libKF5PlasmaQuick.so.5
#22 0x00007fac231f4a2b in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/libQt5Core.so.5
#23 0x000055fb10c5cbb1 in  ()
#24 0x000055fb10c9018e in  ()
#25 0x000055fb10c90491 in  ()
#26 0x00007fac23ac889f in  () at /usr/lib/libQt5DBus.so.5
#27 0x00007fac23acc779 in  () at /usr/lib/libQt5DBus.so.5
#28 0x00007fac23accde1 in  () at /usr/lib/libQt5DBus.so.5
#29 0x00007fac23acf61e in  () at /usr/lib/libQt5DBus.so.5
#30 0x00007fac231f5192 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x00007fac23d28da4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#32 0x00007fac23d303c1 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#33 0x00007fac231c9ef9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#34 0x00007fac231ccfd8 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#35 0x00007fac2321faa4 in  () at /usr/lib/libQt5Core.so.5
#36 0x00007fac2130b90f in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#37 0x00007fac2130d869 in  () at /usr/lib/libglib-2.0.so.0
#38 0x00007fac2130d8ae in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#39 0x00007fac2321f079 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#40 0x00007fac231c8abc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#41 0x00007fac231d0c46 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#42 0x000055fb10c37db8 in  ()
#43 0x00007fac22bc6ee3 in __libc_start_main () at /usr/lib/libc.so.6
#44 0x000055fb10c3826e in _start ()
[Inferior 1 (process 23000) detached]

Reported using DrKonqi
Comment 1 Adrian Wannenmacher 2019-06-21 22:16:45 UTC 
I forgot to mention that I also tried this with a plasma session on X. In that case, the crash doesn't happen.
Comment 2 Nate Graham 2019-06-22 09:47:00 UTC 

*** This bug has been marked as a duplicate of bug 408847 ***