Bug 399396

Summary: System settings sometime crashed
Product: [Applications] systemsettings Reporter: Petr Bravenec <petr>
Component: generic-crashAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: nate
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.13.5   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Petr Bravenec 2018-10-05 05:30:55 UTC 
Application: systemsettings5 (5.13.5)
 (Compiled from sources)
Qt Version: 5.11.1
Frameworks Version: 5.50.0
Operating System: Linux 4.18.11-gentoo x86_64
Distribution (Platform): Gentoo Packages

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

Started system settings
Choose Screen and monitor

Note:
kernel 4.18.11-gentoo
amdgpu driver
amd vega64 videocard

I suspect the videocard and its driver caused the crash.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Nastavení systému (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcf1f1bbd40 (LWP 19335))]

Thread 27 (Thread 0x7fcea50b0700 (LWP 20009)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7fcea5931700 (LWP 19950)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7fcea6d2f700 (LWP 19884)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fcea7530700 (LWP 19883)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fcead464700 (LWP 19812)):
#0  0x00007fcf1a6e55f3 in poll () from /lib64/libc.so.6
#1  0x00007fcf13ad677e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcf13ad689c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcf1b08c4eb in QEventDispatcherGlib::processEvents (this=0x7fce78000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fcf1b03405b in QEventLoop::exec (this=this@entry=0x7fcead463d00, flags=..., flags@entry=...) at ../../src/corelib/global/qflags.h:140
#5  0x00007fcf1ae898d6 in QThread::exec (this=this@entry=0x557f189cd530) at ../../src/corelib/global/qflags.h:120
#6  0x00007fcf18a51f25 in QQmlThreadPrivate::run (this=0x557f189cd530) at qml/ftw/qqmlthread.cpp:148
#7  0x00007fcf1ae94361 in QThreadPrivate::start (arg=0x557f189cd530) at thread/qthread_unix.cpp:367
#8  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#9  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fceb572e700 (LWP 19700)):
#0  0x00007fcf1a6e55f3 in poll () from /lib64/libc.so.6
#1  0x00007fcf13ad677e in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcf13ad689c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcf1b08c4eb in QEventDispatcherGlib::processEvents (this=0x7fce84000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fcf1b03405b in QEventLoop::exec (this=this@entry=0x7fceb572dd00, flags=..., flags@entry=...) at ../../src/corelib/global/qflags.h:140
#5  0x00007fcf1ae898d6 in QThread::exec (this=this@entry=0x557f18698ad0) at ../../src/corelib/global/qflags.h:120
#6  0x00007fcf18a51f25 in QQmlThreadPrivate::run (this=0x557f18698ad0) at qml/ftw/qqmlthread.cpp:148
#7  0x00007fcf1ae94361 in QThreadPrivate::start (arg=0x557f18698ad0) at thread/qthread_unix.cpp:367
#8  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#9  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fceea6fb700 (LWP 19580)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fceeaefc700 (LWP 19579)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fceeb6fd700 (LWP 19578)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fceebefe700 (LWP 19577)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fceec6ff700 (LWP 19576)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fceecf00700 (LWP 19575)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7fceed701700 (LWP 19574)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7fceedf02700 (LWP 19573)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7fceee703700 (LWP 19572)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7fceeef04700 (LWP 19571)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7fceef705700 (LWP 19570)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7fceeff06700 (LWP 19569)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7fcef0707700 (LWP 19568)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fcef0f08700 (LWP 19567)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fcef1709700 (LWP 19566)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fcef1f0a700 (LWP 19565)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fcef270b700 (LWP 19564)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fcef2f0c700 (LWP 19563)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fcef384e700 (LWP 19562)):
#0  0x00007fcf161795bc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fcf00a407db in ?? () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fcf00a40537 in ?? () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#4  0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fcf0240e700 (LWP 19392)):
#0  0x00007fcf1a6e0cd0 in read () from /lib64/libc.so.6
#1  0x00007fcf13b1d5e0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcf13ad621f in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcf13ad6720 in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fcf13ad689c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fcf1b08c4eb in QEventDispatcherGlib::processEvents (this=0x7fcefc000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fcf1b03405b in QEventLoop::exec (this=this@entry=0x7fcf0240dcf0, flags=..., flags@entry=...) at ../../src/corelib/global/qflags.h:140
#7  0x00007fcf1ae898d6 in QThread::exec (this=this@entry=0x7fcf1b785da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../src/corelib/global/qflags.h:120
#8  0x00007fcf1b4f9c95 in QDBusConnectionManager::run (this=0x7fcf1b785da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#9  0x00007fcf1ae94361 in QThreadPrivate::start (arg=0x7fcf1b785da0 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#10 0x00007fcf161729ba in start_thread () from /lib64/libpthread.so.0
#11 0x00007fcf1a6f115f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fcf1f1bbd40 (LWP 19335)):
[KCrash Handler]
#6  0x00007fcf1aee0d60 in QHashData::rehash (this=0x557f17f640a0, hint=<optimized out>) at tools/qhash.cpp:675
#7  0x00007fcf1baa9565 in QHashData::willGrow (this=0x557f17f640a0) at ../../src/corelib/tools/qhash.h:106
#8  QHash<unsigned long long, QSharedPointer<QGradientCache::CacheInfo const> >::insertMulti (avalue=..., akey=@0x7ffd956dd5c8: 13382535977456068360, this=0x7fcf1bee08d0 <(anonymous namespace)::Q_QGS_qt_gradient_cache::innerFunction()::holder>) at ../../src/corelib/tools/qhash.h:789
#9  QMultiHash<unsigned long long, QSharedPointer<QGradientCache::CacheInfo const> >::insert (value=..., key=@0x7ffd956dd5c8: 13382535977456068360, this=0x7fcf1bee08d0 <(anonymous namespace)::Q_QGS_qt_gradient_cache::innerFunction()::holder>) at ../../src/corelib/tools/qhash.h:1043
#10 QGradientCache::addCacheElement (this=this@entry=0x7fcf1bee08d0 <(anonymous namespace)::Q_QGS_qt_gradient_cache::innerFunction()::holder>, hash_val=<optimized out>, gradient=..., opacity=opacity@entry=256) at painting/qpaintengine_raster.cpp:4249
#11 0x00007fcf1baa9918 in QGradientCache::getBuffer (this=0x7fcf1bee08d0 <(anonymous namespace)::Q_QGS_qt_gradient_cache::innerFunction()::holder>, gradient=..., opacity=opacity@entry=256) at painting/qpaintengine_raster.cpp:4221
#12 0x00007fcf1baa1d21 in QSpanData::setup (this=0x557f1901c5c0, brush=..., alpha=256, compositionMode=QPainter::CompositionMode_SourceOver) at painting/qpaintengine_raster.cpp:4449
#13 0x00007fcf1baa5150 in QRasterPaintEngine::updateBrush (this=0x7fcf0400a730, brush=...) at painting/qpaintengine_raster.cpp:849
#14 0x00007fcf1baa5a41 in QRasterPaintEngine::ensureBrush (brush=..., this=0x7fcf0400a730) at ../../src/gui/painting/qpaintengine_raster_p.h:254
#15 QRasterPaintEngine::fill (this=0x7fcf0400a730, path=..., brush=...) at painting/qpaintengine_raster.cpp:1705
#16 0x00007fcf1ba8d5dd in QPaintEngineEx::draw (this=0x7fcf0400a730, path=...) at painting/qpaintengineex.cpp:599
#17 0x00007fcf1ba8eae0 in QPaintEngineEx::drawRoundedRect (this=<optimized out>, rect=..., xRadius=<optimized out>, yRadius=<optimized out>, mode=<optimized out>) at painting/qpaintengineex.cpp:778
#18 0x00007fcf1bab59fb in QPainter::drawRoundedRect (this=0x7ffd956ddc70, rect=..., xRadius=<optimized out>, yRadius=<optimized out>, mode=<optimized out>) at painting/qpainter.cpp:4141
#19 0x00007fcf028c2f8e in ?? () from /usr/lib64/qt5/plugins/styles/oxygen.so
#20 0x00007fcf028d6cb5 in ?? () from /usr/lib64/qt5/plugins/styles/oxygen.so
#21 0x00007fcf1d714423 in KToolTipWidget::paintEvent(QPaintEvent*) () from /usr/lib64/libKF5WidgetsAddons.so.5
#22 0x00007fcf1c095cb8 in QWidget::event (this=0x557f189cbf20, event=0x7ffd956ddfb0) at kernel/qwidget.cpp:8919
#23 0x00007fcf1c050e95 in QApplicationPrivate::notify_helper (this=this@entry=0x557f17ee4c00, receiver=receiver@entry=0x557f189cbf20, e=e@entry=0x7ffd956ddfb0) at kernel/qapplication.cpp:3727
#24 0x00007fcf1c0588c0 in QApplication::notify (this=0x7ffd956de9c0, receiver=0x557f189cbf20, e=0x7ffd956ddfb0) at kernel/qapplication.cpp:3486
#25 0x00007fcf1b0356d5 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x557f189cbf20, event=event@entry=0x7ffd956ddfb0) at kernel/qcoreapplication.cpp:1048
#26 0x00007fcf1c08e201 in QCoreApplication::sendSpontaneousEvent (event=0x7ffd956ddfb0, receiver=0x557f189cbf20) at ../../src/corelib/kernel/qcoreapplication.h:237
#27 QWidgetPrivate::sendPaintEvent (this=this@entry=0x557f189cbf60, toBePainted=...) at kernel/qwidget.cpp:5683
#28 0x00007fcf1c08eaf6 in QWidgetPrivate::drawWidget (this=this@entry=0x557f189cbf60, pdev=<optimized out>, rgn=..., offset=..., flags=flags@entry=5, sharedPainter=sharedPainter@entry=0x0, backingStore=<optimized out>) at kernel/qwidget.cpp:5623
#29 0x00007fcf1c06187e in QWidgetBackingStore::doSync (this=0x557f194e0560) at ../../src/corelib/tools/qpoint.h:120
#30 0x00007fcf1c06214c in QWidgetBackingStore::sync (this=0x557f194e0560, exposedWidget=0x557f189cbf20, exposedRegion=...) at kernel/qwidgetbackingstore.cpp:1130
#31 0x00007fcf1c07c71a in QWidgetPrivate::syncBackingStore (this=this@entry=0x557f189cbf60, region=...) at ../../src/widgets/kernel/qwidget_p.h:305
#32 0x00007fcf1c0b386d in QWidgetWindow::handleExposeEvent (this=0x557f194df6b0, event=0x7ffd956de730) at ../../src/gui/kernel/qevent.h:437
#33 0x00007fcf1c0b4203 in QWidgetWindow::event (this=0x557f194df6b0, event=0x7ffd956de730) at kernel/qwidgetwindow.cpp:326
#34 0x00007fcf1c050e95 in QApplicationPrivate::notify_helper (this=this@entry=0x557f17ee4c00, receiver=receiver@entry=0x557f194df6b0, e=e@entry=0x7ffd956de730) at kernel/qapplication.cpp:3727
#35 0x00007fcf1c0588c0 in QApplication::notify (this=0x7ffd956de9c0, receiver=0x557f194df6b0, e=0x7ffd956de730) at kernel/qapplication.cpp:3486
#36 0x00007fcf1b0356d5 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x557f194df6b0, event=event@entry=0x7ffd956de730) at kernel/qcoreapplication.cpp:1048
#37 0x00007fcf1b8a7fee in QCoreApplication::sendSpontaneousEvent (event=0x7ffd956de730, receiver=0x557f194df6b0) at ../../src/corelib/kernel/qcoreapplication.h:237
#38 QGuiApplicationPrivate::processExposeEvent (e=0x557f194f5af0) at kernel/qguiapplication.cpp:3045
#39 0x00007fcf1b8a8de5 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x557f194f5af0) at kernel/qguiapplication.cpp:1881
#40 0x00007fcf1b8828fa in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1032
#41 0x00007fcf0c8218db in QPAEventDispatcherGlib::processEvents (this=0x557f17f471c0, flags=...) at qeventdispatcher_glib.cpp:70
#42 0x00007fcf1b03405b in QEventLoop::exec (this=this@entry=0x7ffd956de8e0, flags=..., flags@entry=...) at ../../src/corelib/global/qflags.h:140
#43 0x00007fcf1b03cd0f in QCoreApplication::exec () at ../../src/corelib/global/qflags.h:120
#44 0x0000557f1625d01f in ?? ()
#45 0x00007fcf1a60eae7 in __libc_start_main () from /lib64/libc.so.6
#46 0x0000557f1625d0aa in _start ()
[Inferior 1 (process 19335) detached]

Possible duplicates by query: bug 240116, bug 229964.

Reported using DrKonqi
Comment 1 Nate Graham 2020-10-12 21:31:41 UTC 
> I suspect the videocard and its driver caused the crash. 

Could be. We have a lot of those in System Settings.
Comment 2 Nate Graham 2021-01-12 16:39:26 UTC 
The KCM in question has been rewritten since you filed this bug report. Can you see if it still crashes with Plasma 5.20 or newer?
Comment 3 Petr Bravenec 2021-01-20 07:27:01 UTC 
It is probably OK. I have a different graphics card now and no crashes occure.
Comment 4 Nate Graham 2021-01-20 17:08:37 UTC 
OK, thanks!