Bug 438330

Application: plasmashell (5.22.0)

Qt Version: 5.15.3
Frameworks Version: 5.82.0
Operating System: Linux 5.4.0-74-generic x86_64
Windowing System: Wayland
Drkonqi Version: 5.22.0
Distribution: KDE neon User Edition 5.22

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

- Unusual behavior I noticed: Latte dock and widget not work properly

- Custom settings of the application: added windows button widget, transparent when no window is maximized on latte

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 17668]
[New LWP 17718]
[New LWP 17719]
[New LWP 17720]
[New LWP 17721]
[New LWP 17738]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ff33d56caff in __GI___poll (fds=0x7ffe58748f68, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7ff33979e8c0 (LWP 17634))]

Thread 7 (Thread 0x7ff328ffb700 (LWP 17738)):
#0  0x00007ff33bdd7a0f in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff33bdd829b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff33bdd84a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff33db3ab3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff33dadedcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff33d8f8bb2 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff33f0f9559 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ff33d8f9d4c in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7ff32a45e700 (LWP 17721)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c48a208f98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c48a208f48, cond=0x55c48a208f70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c48a208f70, mutex=0x55c48a208f48) at pthread_cond_wait.c:638
#3  0x00007ff330b51b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff330b5175b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7ff32ac5f700 (LWP 17720)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c48a208f98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c48a208f48, cond=0x55c48a208f70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c48a208f70, mutex=0x55c48a208f48) at pthread_cond_wait.c:638
#3  0x00007ff330b51b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff330b5175b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7ff323fff700 (LWP 17719)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c48a208f98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c48a208f48, cond=0x55c48a208f70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c48a208f70, mutex=0x55c48a208f48) at pthread_cond_wait.c:638
#3  0x00007ff330b51b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff330b5175b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff32b460700 (LWP 17718)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55c48a208f98) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55c48a208f48, cond=0x55c48a208f70) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55c48a208f70, mutex=0x55c48a208f48) at pthread_cond_wait.c:638
#3  0x00007ff330b51b5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007ff330b5175b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff339340700 (LWP 17668)):
#0  0x00007ff33bdd62c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ff33bdd782b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff33bdd829b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff33bdd84a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff33db3ab3b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff33dadedcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff33d8f8bb2 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff33e46af4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007ff33d8f9d4c in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff33c80a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007ff33d579293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff33979e8c0 (LWP 17634)):
[KCrash Handler]
#4  0x00007ff33dee9c76 in QScreen::name() const () from /lib/x86_64-linux-gnu/libQt5Gui.so.5
#5  0x000055c4889dfa44 in ShellCorona::addOutput (this=this@entry=0x55c48a049ac0, screen=<optimized out>, screen@entry=0x55c489fd1790) at ./shell/shellcorona.cpp:1248
#6  0x000055c4889ea0c3 in ShellCorona::load (this=0x55c48a049ac0) at ./shell/shellcorona.cpp:698
#7  0x00007ff33db172ee in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff33fd48d85 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#9  0x00007ff33db172ee in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff33fd48d25 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#11 0x00007ff33fd61c96 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#12 0x00007ff33fd61ecd in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#13 0x00007ff33fd495ef in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#14 0x00007ff33db17320 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ff33e4ce0d3 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#16 0x00007ff33e4ce1d8 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#17 0x00007ff33db0de69 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007ff33e7dfdc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007ff33e7e8bb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007ff33dae02ca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ff33dae2bd1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007ff33db3b4c7 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007ff33bdd817d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff33bdd8400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ff33bdd84a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007ff33db3ab22 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007ff33dadedcb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007ff33dae6f84 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x000055c4889b7dfe in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:251
[Inferior 1 (process 17634) detached]

Reported using DrKonqi