437721 – Plasma crashes in CursorNotificationHandler::cursorName() every time after boot, restart or at random times

Bug 437721 - Plasma crashes in CursorNotificationHandler::cursorName() every time after boot, restart or at random times

Summary: Plasma crashes in CursorNotificationHandler::cursorName() every time after bo...

Status:	RESOLVED FIXED

Alias:	None

Product:	plasmashell
Classification:	Plasma
Component:	DataEngines (show other bugs)
Version:	5.21.5
Platform:	Neon Linux

Importance:	NOR crash
Target Milestone:	1.0
Assignee:	Plasma Bugs List

URL:
Keywords:	drkonqi

Duplicates (2):	440993 445112 (view as bug list)
Depends on:
Blocks:

Reported:	2021-05-27 00:49 UTC by KDE Neon18
Modified:	2023-12-09 04:13 UTC (History)
CC List:	2 users (show)

See Also:
Latest Commit:
Version Fixed In:

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Description KDE Neon18 2021-05-27 00:49:07 UTC

Application: plasmashell (5.21.5)

Qt Version: 5.15.2
Frameworks Version: 5.82.0
Operating System: Linux 5.4.0-73-generic x86_64
Windowing System: X11
Drkonqi Version: 5.21.5
Distribution: KDE neon User Edition 5.21

-- Information about the crash:
- What I was doing when the application crashed:
Just restarted my system! It crashes everytime, every restart! As I'm a KDE Neon Lover, I took it so personal and just now created a account to report this problem to the developers. 
General scenario when I find this type of behaviour:
1) Every system boot and restart.
2) (Random times) When I try to download something from my chrome browser or firefox and try to trace my manual directory to find the exact location where I want to download (I think the window which opens and helps me to trace is Dolphin window, not sure though. I have Dolphin as my file manager), suddenly the 'Plasma error logos' get filled on my whole KDE panel almost upto infinite! Don't know why this happens. I have encountered this a couple of times. 

- Unusual behavior I noticed:
Panel gets into 'Not responding' type of behaviour which eventually leads to black screen and my laptop starts to hang!

The crash can be reproduced every time.

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

[New LWP 1804]
[New LWP 1805]
[New LWP 1806]
[New LWP 1807]
[New LWP 1808]
[New LWP 1809]
[New LWP 2004]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f10f3753aff in __GI___poll (fds=0x7ffc0a0a44a8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f10ef9858c0 (LWP 1754))]

Thread 8 (Thread 0x7f10e4e91700 (LWP 2004)):
#0  0x00007f10f1fbe841 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f10f1fbf29b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f10f1fbf4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f10f3d20ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f10f3cc51eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f10f3adfa52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f10f53bafa9 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f10f3ae0bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f10e60a2700 (LWP 1809)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f10e8005768) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f10e8005718, cond=0x7f10e8005740) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f10e8005740, mutex=0x7f10e8005718) at pthread_cond_wait.c:638
#3  0x00007f10e6d5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f10e6d5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f10e68a3700 (LWP 1808)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f10e8005768) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f10e8005718, cond=0x7f10e8005740) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f10e8005740, mutex=0x7f10e8005718) at pthread_cond_wait.c:638
#3  0x00007f10e6d5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f10e6d5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f10ec994700 (LWP 1807)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f10e8005768) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f10e8005718, cond=0x7f10e8005740) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f10e8005740, mutex=0x7f10e8005718) at pthread_cond_wait.c:638
#3  0x00007f10e6d5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f10e6d5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f10ed195700 (LWP 1806)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f10e8005768) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f10e8005718, cond=0x7f10e8005740) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x7f10e8005740, mutex=0x7f10e8005718) at pthread_cond_wait.c:638
#3  0x00007f10e6d5eb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f10e6d5e75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f10edf38700 (LWP 1805)):
#0  0x00007f10f3753aff in __GI___poll (fds=0x7f10e0016880, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f10f1fbf36e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f10f1fbf4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f10f3d20ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f10f3cc51eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f10f3adfa52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f10f4648f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f10f3ae0bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f10eeddc700 (LWP 1804)):
#0  0x00007f10f3753aff in __GI___poll (fds=0x7f10eeddbbe8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f10f5d47c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f10f5d4990a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f10ef2fcd58 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f10f3ae0bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f10f2b30609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f10f3760293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f10ef9858c0 (LWP 1754)):
[KCrash Handler]
#4  CursorNotificationHandler::cursorName (this=0x559d4335c6f0) at ./dataengines/mouse/cursornotificationhandler.cpp:64
#5  0x00007f10d8b88de8 in MouseEngine::init (this=0x559d42f1e880) at ./dataengines/mouse/mouseengine.cpp:73
#6  0x00007f10d8b8943e in KPluginFactory::createInstance<MouseEngine, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#7  0x00007f10f479bad2 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#8  0x00007f10f5c83e72 in Plasma::PluginLoader::loadDataEngine(QString const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#9  0x00007f10f5cc8fe8 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#10 0x00007f10f5cb90f1 in Plasma::DataEngineConsumer::dataEngine(QString const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#11 0x00007f10da9acced in Plasma::DataSource::setEngine (this=0x559d432a1a20, e=...) at ./src/declarativeimports/core/datasource.cpp:80
#12 0x00007f10da991f25 in Plasma::DataSource::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/src/declarativeimports/core/corebindingsplugin_autogen/EWIEGA46WW/moc_datasource.cpp:331
#13 0x00007f10f5302ea1 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f10f5389435 in QQmlObjectCreator::setPropertyValue(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f10f538ab06 in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f10f538c27f in QQmlObjectCreator::setupBindings(bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f10f538d60e in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f10f538e7f2 in QQmlObjectCreator::createInstance(int, QObject*, bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f10f538beb4 in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007f10f538c27f in QQmlObjectCreator::setupBindings(bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f10f538d60e in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f10f538e7f2 in QQmlObjectCreator::createInstance(int, QObject*, bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f10f538f886 in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f10f530bad1 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f10f530c366 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f10f5305aee in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f10f5bdef31 in KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant> const&) () from /lib/x86_64-linux-gnu/libKF5Declarative.so.5
#28 0x00007f10f606ec33 in PlasmaQuick::AppletQuickItem::init() () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#29 0x00007f10ec025119 in AppletInterface::init (this=0x559d42f06900) at ./src/scriptengines/qml/plasmoid/appletinterface.cpp:141
#30 0x00007f10f60707f1 in PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#31 0x00007f10f58c36e5 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f10f58c799e in QQuickItemPrivate::refWindow(QQuickWindow*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f10f58c795e in QQuickItemPrivate::refWindow(QQuickWindow*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007f10f58c9c34 in QQuickItem::setParentItem(QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f10f607c200 in ?? () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#36 0x0000559d41707653 in ShellCorona::addOutput (this=this@entry=0x559d429e58b0, screen=<optimized out>, screen@entry=0x559d429c7a20) at ./shell/shellcorona.cpp:1234
#37 0x0000559d41711f43 in ShellCorona::load (this=0x559d429e58b0) at ./shell/shellcorona.cpp:698
#38 0x00007f10f3cfd6fe in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f10f5f2bd85 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#40 0x00007f10f3cfd6fe in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f10f5f2bd25 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#42 0x00007f10f5f44c96 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#43 0x00007f10f5f44ecd in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#44 0x00007f10f5f2c5ef in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#45 0x00007f10f3cfd730 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f10f46ac0a3 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#47 0x00007f10f46ac1a8 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#48 0x00007f10f3cf4279 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f10f49c4dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007f10f49cdbb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007f10f3cc66da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f10f3cc8fe1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f10f3d21987 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007f10f1fbf17d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f10f1fbf400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007f10f1fbf4a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f10f3d20fe2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007f10f3cc51eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007f10f3ccd394 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x0000559d416dfefe in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:251
[Inferior 1 (process 1754) detached]

Possible duplicates by query: bug 433252, bug 409515, bug 398918, bug 353881, bug 240182.

Reported using DrKonqi

Comment 1 Nate Graham 2021-05-27 15:31:33 UTC

What cursor theme are you using?

Comment 2 KDE Neon18 2021-05-27 15:43:11 UTC

(In reply to Nate Graham from comment #1)
> What cursor theme are you using?

'Sweet cursors' theme.

Comment 3 Nate Graham 2021-05-27 15:46:52 UTC

Thanks. Do the crashes go away if you temporarily go back to using the default Breeze cursor theme?

Comment 4 KDE Neon18 2021-05-27 16:55:08 UTC

(In reply to Nate Graham from comment #3)
> Thanks. Do the crashes go away if you temporarily go back to using the
> default Breeze cursor theme?

Actually I haven't used any other cursor theme than the sweet cursor.
I'll use it and then update you about that.

Comment 5 KDE Neon18 2021-05-27 17:38:16 UTC

(In reply to Nate Graham from comment #3)
> Thanks. Do the crashes go away if you temporarily go back to using the
> default Breeze cursor theme?

Hey, the 'plasma closed unexpectedly' logo still appears on the panel.
I'm attaching the backend trace, have a look, please.







Application: Plasma (plasmashell), signal: Segmentation fault

[New LWP 1940]
[New LWP 1943]
[New LWP 1946]
[New LWP 1947]
[New LWP 1948]
[New LWP 1949]
[New LWP 2476]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f0fb9804aff in __GI___poll (fds=0x7fff9c939c68, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7f0fb5a368c0 (LWP 1908))]

Thread 8 (Thread 0x7f0fa1e4a700 (LWP 2476)):
#0  0x00007f0fb9804aff in __GI___poll (fds=0x7f0f84004a60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0fb807036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0fb80704a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0fb9dd1ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0fb9d761eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0fb9b90a52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0fbb46bfa9 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f0fb9b91bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f0fa305b700 (LWP 1949)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55aac76d7558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55aac76d7508, cond=0x55aac76d7530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55aac76d7530, mutex=0x55aac76d7508) at pthread_cond_wait.c:638
#3  0x00007f0fae1fcb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f0fae1fc75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0facad2700 (LWP 1948)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55aac76d7558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55aac76d7508, cond=0x55aac76d7530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55aac76d7530, mutex=0x55aac76d7508) at pthread_cond_wait.c:638
#3  0x00007f0fae1fcb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f0fae1fc75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0fad2d3700 (LWP 1947)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55aac76d7558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55aac76d7508, cond=0x55aac76d7530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55aac76d7530, mutex=0x55aac76d7508) at pthread_cond_wait.c:638
#3  0x00007f0fae1fcb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f0fae1fc75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f0fadad4700 (LWP 1946)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55aac76d7558) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55aac76d7508, cond=0x55aac76d7530) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55aac76d7530, mutex=0x55aac76d7508) at pthread_cond_wait.c:638
#3  0x00007f0fae1fcb5b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f0fae1fc75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f0faff0c700 (LWP 1943)):
#0  0x00007f0fb9804aff in __GI___poll (fds=0x7f0fa8016640, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0fb807036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0fb80704a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0fb9dd1ffb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f0fb9d761eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0fb9b90a52 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f0fba6f9f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007f0fb9b91bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0fb4e8d700 (LWP 1940)):
#0  0x00007f0fb9804aff in __GI___poll (fds=0x7f0fb4e8cbe8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f0fbbdf8c1a in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f0fbbdfa90a in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f0fb53add58 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f0fb9b91bec in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f0fb8be1609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f0fb9811293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f0fb5a368c0 (LWP 1908)):
[KCrash Handler]
#4  CursorNotificationHandler::cursorName (this=0x55aac7ce4ec0) at ./dataengines/mouse/cursornotificationhandler.cpp:64
#5  0x00007f0fa0057de8 in MouseEngine::init (this=0x55aac79e4520) at ./dataengines/mouse/mouseengine.cpp:73
#6  0x00007f0fa005843e in KPluginFactory::createInstance<MouseEngine, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:519
#7  0x00007f0fba84cad2 in KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) () from /lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#8  0x00007f0fbbd34e72 in Plasma::PluginLoader::loadDataEngine(QString const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#9  0x00007f0fbbd79fe8 in ?? () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#10 0x00007f0fbbd6a0f1 in Plasma::DataEngineConsumer::dataEngine(QString const&) () from /lib/x86_64-linux-gnu/libKF5Plasma.so.5
#11 0x00007f0fa0a5eced in Plasma::DataSource::setEngine (this=0x55aac7cd5c30, e=...) at ./src/declarativeimports/core/datasource.cpp:80
#12 0x00007f0fa0a43f25 in Plasma::DataSource::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/src/declarativeimports/core/corebindingsplugin_autogen/EWIEGA46WW/moc_datasource.cpp:331
#13 0x00007f0fbb3b3ea1 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#14 0x00007f0fbb43a435 in QQmlObjectCreator::setPropertyValue(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f0fbb43bb06 in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f0fbb43d27f in QQmlObjectCreator::setupBindings(bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f0fbb43e60e in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#18 0x00007f0fbb43f7f2 in QQmlObjectCreator::createInstance(int, QObject*, bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#19 0x00007f0fbb43ceb4 in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#20 0x00007f0fbb43d27f in QQmlObjectCreator::setupBindings(bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#21 0x00007f0fbb43e60e in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#22 0x00007f0fbb43f7f2 in QQmlObjectCreator::createInstance(int, QObject*, bool) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#23 0x00007f0fbb440886 in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#24 0x00007f0fbb3bcad1 in QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt&) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#25 0x00007f0fbb3bd366 in QQmlEnginePrivate::incubate(QQmlIncubator&, QQmlContextData*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f0fbb3b6aee in QQmlComponent::create(QQmlIncubator&, QQmlContext*, QQmlContext*) () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#27 0x00007f0fbbc8ff31 in KDeclarative::QmlObject::completeInitialization(QHash<QString, QVariant> const&) () from /lib/x86_64-linux-gnu/libKF5Declarative.so.5
#28 0x00007f0fbc11fc33 in PlasmaQuick::AppletQuickItem::init() () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#29 0x00007f0fac188119 in AppletInterface::init (this=0x55aac79df2e0) at ./src/scriptengines/qml/plasmoid/appletinterface.cpp:141
#30 0x00007f0fbc1217f1 in PlasmaQuick::AppletQuickItem::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#31 0x00007f0fbb9746e5 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange, QQuickItem::ItemChangeData const&) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#32 0x00007f0fbb97899e in QQuickItemPrivate::refWindow(QQuickWindow*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#33 0x00007f0fbb97895e in QQuickItemPrivate::refWindow(QQuickWindow*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#34 0x00007f0fbb97ac34 in QQuickItem::setParentItem(QQuickItem*) () from /lib/x86_64-linux-gnu/libQt5Quick.so.5
#35 0x00007f0fbc12d200 in ?? () from /lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#36 0x000055aac57d4653 in ShellCorona::addOutput (this=this@entry=0x55aac74ccc60, screen=<optimized out>, screen@entry=0x55aac74a0a20) at ./shell/shellcorona.cpp:1234
#37 0x000055aac57def43 in ShellCorona::load (this=0x55aac74ccc60) at ./shell/shellcorona.cpp:698
#38 0x00007f0fb9dae6fe in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#39 0x00007f0fbbfdcd85 in KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#40 0x00007f0fb9dae6fe in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#41 0x00007f0fbbfdcd25 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#42 0x00007f0fbbff5c96 in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#43 0x00007f0fbbff5ecd in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#44 0x00007f0fbbfdd5ef in ?? () from /lib/x86_64-linux-gnu/libKF5Activities.so.5
#45 0x00007f0fb9dae730 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#46 0x00007f0fba75d0a3 in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#47 0x00007f0fba75d1a8 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#48 0x00007f0fb9da5279 in QObject::event(QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#49 0x00007f0fbaa75dc3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#50 0x00007f0fbaa7ebb8 in QApplication::notify(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#51 0x00007f0fb9d776da in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#52 0x00007f0fb9d79fe1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#53 0x00007f0fb9dd2987 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#54 0x00007f0fb807017d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#55 0x00007f0fb8070400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#56 0x00007f0fb80704a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007f0fb9dd1fe2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#58 0x00007f0fb9d761eb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#59 0x00007f0fb9d7e394 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#60 0x000055aac57acefe in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:251
[Inferior 1 (process 1908) detached]

Comment 6 Nate Graham 2021-05-28 19:44:37 UTC

Looks like the same crash. I guess the active cursor theme isn't relevant. Thanks.

Comment 7 KDE Neon18 2021-05-30 14:16:35 UTC

(In reply to Nate Graham from comment #6)
> Looks like the same crash. I guess the active cursor theme isn't relevant.
> Thanks.

You're Welcome
Please look into it as soon as possible
This is the only problem I face in my KDE Neon system.
Rest all works flawlessly!

Comment 8 Nate Graham 2021-11-09 03:43:36 UTC

*** Bug 440993 has been marked as a duplicate of this bug. ***

Comment 9 Nate Graham 2021-11-09 03:44:37 UTC

*** Bug 445112 has been marked as a duplicate of this bug. ***

Comment 10 Nate Graham 2023-12-09 04:13:04 UTC

No new duplicate reports in over two years. Assuming it's since been fixed or else we'd have gotten more reports of it.