Application: plasmashell (5.23.4)

Qt Version: 5.15.3
Frameworks Version: 5.89.0
Operating System: Linux 5.11.0-43-generic x86_64
Windowing System: Wayland
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.4 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
Dragging Telegram-Desktop (Snap) to one side of the screen to make it half-screen big, then I tried to open Thunderbird to put it on the other half and it froze.

- Unusual behavior I noticed:
The mouse pointer was behaving erratically, sometimes picking up the window(s) even if I didn't hold down the left mouse button. 

- Custom settings of the application:
None. Telegram was installed from Snap.

The reporter is unsure if this crash is reproducible.

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

[New LWP 2273]
[New LWP 2300]
[New LWP 2301]
[New LWP 2302]
[New LWP 2303]
[New LWP 2354]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f3cb198faff in __GI___poll (fds=0x7fff7082de38, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7f3cadad39c0 (LWP 2236))]

Thread 7 (Thread 0x7f3c9a5ed700 (LWP 2354)):
#0  0x00007f3cb198faff in __GI___poll (fds=0x7f3c80004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f3cb022836e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f3cb02284a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3cb1f5f64b in QEventDispatcherGlib::processEvents (this=0x7f3c80000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f3cb1f038cb in QEventLoop::exec (this=this@entry=0x7f3c9a5ecbc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f3cb1d1d2e2 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f3cb352f549 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f3cb1d1e47c in QThreadPrivate::start (arg=0x5571ad1e88c0) at thread/qthread_unix.cpp:329
#8  0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f3c9b7fe700 (LWP 2303)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5571acf77fa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5571acf77f58, cond=0x5571acf77f80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5571acf77f80, mutex=0x5571acf77f58) at pthread_cond_wait.c:638
#3  0x00007f3ca6834e7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f3ca6834a7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f3c9bfff700 (LWP 2302)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5571acf77fa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5571acf77f58, cond=0x5571acf77f80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5571acf77f80, mutex=0x5571acf77f58) at pthread_cond_wait.c:638
#3  0x00007f3ca6834e7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f3ca6834a7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f3c98735700 (LWP 2301)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5571acf77fa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5571acf77f58, cond=0x5571acf77f80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5571acf77f80, mutex=0x5571acf77f58) at pthread_cond_wait.c:638
#3  0x00007f3ca6834e7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f3ca6834a7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f3ca0f36700 (LWP 2300)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5571acf77fa8) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5571acf77f58, cond=0x5571acf77f80) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x5571acf77f80, mutex=0x5571acf77f58) at pthread_cond_wait.c:638
#3  0x00007f3ca6834e7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f3ca6834a7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f3cad16c700 (LWP 2273)):
#0  __GI___libc_read (nbytes=16, buf=0x7f3cad16b9a0, fd=9) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=9, buf=0x7f3cad16b9a0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f3cb0270b2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f3cb0227ebe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f3cb0228312 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f3cb02284a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f3cb1f5f64b in QEventDispatcherGlib::processEvents (this=0x7f3ca8000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f3cb1f038cb in QEventLoop::exec (this=this@entry=0x7f3cad16bbb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f3cb1d1d2e2 in QThread::exec (this=this@entry=0x7f3cb2914d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f3cb2890f4b in QDBusConnectionManager::run (this=0x7f3cb2914d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#10 0x00007f3cb1d1e47c in QThreadPrivate::start (arg=0x7f3cb2914d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#11 0x00007f3cb0c59609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f3cb199c293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f3cadad39c0 (LWP 2236)):
[KCrash Handler]
#4  0x00007f3cb230fc66 in QScreen::name (this=0x5571acda6a60) at kernel/qscreen.cpp:195
#5  0x00005571ac01ee94 in ?? ()
#6  0x00005571ac028ce3 in ?? ()
#7  0x00007f3cb1f3bdfe in QtPrivate::QSlotObjectBase::call (a=0x7fff7082ee00, r=0x5571ad033530, this=0x5571acfc36d0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#8  doActivate<false> (sender=0x5571ad02c430, signal_index=4, argv=0x7fff7082ee00) at kernel/qobject.cpp:3886
#9  0x00007f3cb1f351c7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f3cb42bd0c0 <KActivities::Consumer::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff7082ee00) at kernel/qobject.cpp:3946
#10 0x00007f3cb428eda5 in KActivities::Consumer::serviceStatusChanged (this=<optimized out>, _t1=<optimized out>) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_consumer.cpp:253
#11 0x00007f3cb1f3bdfe in QtPrivate::QSlotObjectBase::call (a=0x7fff7082ef20, r=0x5571ad02c430, this=0x5571acfd4640) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#12 doActivate<false> (sender=0x5571acfd3d90, signal_index=11, argv=0x7fff7082ef20) at kernel/qobject.cpp:3886
#13 0x00007f3cb1f351c7 in QMetaObject::activate (sender=sender@entry=0x5571acfd3d90, m=m@entry=0x7f3cb42bd180 <KActivities::ActivitiesCache::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7fff7082ef20) at kernel/qobject.cpp:3946
#14 0x00007f3cb428ed45 in KActivities::ActivitiesCache::serviceStatusChanged (this=this@entry=0x5571acfd3d90, _t1=<optimized out>, _t1@entry=KActivities::Consumer::Running) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_activitiescache_p.cpp:412
#15 0x00007f3cb42a8046 in KActivities::ActivitiesCache::setAllActivities (this=this@entry=0x5571acfd3d90, _activities=...) at ./src/lib/activitiescache_p.cpp:270
#16 0x00007f3cb42a827d in KActivities::ActivitiesCache::passInfoFromReply<QList<ActivityInfo>, void (KActivities::ActivitiesCache::*)(QList<ActivityInfo> const&)> (f=(void (KActivities::ActivitiesCache::*)(class KActivities::ActivitiesCache * const, const class QList<ActivityInfo> &)) 0x7f3cb42a7ed0 <KActivities::ActivitiesCache::setAllActivities(QList<ActivityInfo> const&)>, watcher=0x5571ad03f760, this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:164
#17 KActivities::ActivitiesCache::setAllActivitiesFromReply (this=<optimized out>, watcher=0x5571ad03f760) at ./src/lib/activitiescache_p.cpp:195
#18 0x00007f3cb428f63f in KActivities::ActivitiesCache::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_activitiescache_p.cpp:201
#19 0x00007f3cb1f3be30 in doActivate<false> (sender=0x5571ad03f760, signal_index=3, argv=0x7fff7082f1c0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#20 0x00007f3cb1f351c7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f3cb29135e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff7082f1c0) at kernel/qobject.cpp:3946
#21 0x00007f3cb28f40d3 in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:158
#22 0x00007f3cb28f41d8 in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at qdbuspendingcall.cpp:494
#23 QDBusPendingCallWatcher::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:86
#24 0x00007f3cb1f32979 in QObject::event (this=0x5571ad03f760, e=0x5571acdc72c0) at kernel/qobject.cpp:1314
#25 0x00007f3cb2c15dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x5571acd95400, receiver=receiver@entry=0x5571ad03f760, e=e@entry=0x5571acdc72c0) at kernel/qapplication.cpp:3632
#26 0x00007f3cb2c1ebb8 in QApplication::notify (this=0x7fff7082f8b0, receiver=0x5571ad03f760, e=0x5571acdc72c0) at kernel/qapplication.cpp:3156
#27 0x00007f3cb1f04dca in QCoreApplication::notifyInternal2 (receiver=0x5571ad03f760, event=0x5571acdc72c0) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#28 0x00007f3cb1f076d1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x5571acd6eef0) at kernel/qcoreapplication.cpp:1821
#29 0x00007f3cb1f5ffd7 in postEventSourceDispatch (s=0x5571acdb1b70) at kernel/qeventdispatcher_glib.cpp:277
#30 0x00007f3cb022817d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f3cb0228400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f3cb02284a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f3cb1f5f632 in QEventDispatcherGlib::processEvents (this=0x5571acdb8d30, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#34 0x00007f3cb1f038cb in QEventLoop::exec (this=this@entry=0x7fff7082f790, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#35 0x00007f3cb1f0ba84 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#36 0x00005571abff6cf5 in ?? ()
#37 0x00007f3cb18a10b3 in __libc_start_main (main=0x5571abff5e90, argc=1, argv=0x7fff7082fa28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7082fa18) at ../csu/libc-start.c:308
#38 0x00005571abff6e1e in ?? ()
[Inferior 1 (process 2236) detached]

Possible duplicates by query: bug 447870, bug 447781, bug 447773, bug 446987, bug 446962.

Reported using DrKonqi