Bug 369583

Application: plasmashell (5.6.5)
 (Compiled from sources)
Qt Version: 5.5.1
Frameworks Version: 5.23.0
Operating System: Linux 4.4.0-36-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed: Using the Plasma Desktop as usual

- Unusual behavior I noticed: Screen glitches, and unclickable windows appear in background after the user closes the window(s) .

Possibly GPU related. AMD graphics card is in the PC which I've faced this crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffb16e688c0 (LWP 2687))]

Thread 9 (Thread 0x7ffa4d4f2700 (LWP 2985)):
#0  0x00007ffd4c5eb9a9 in ?? ()
#1  0x00007ffd4c5ebcd5 in clock_gettime ()
#2  0x00007ffb11557fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7ffa4d4f1a00) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007ffb11ce3c16 in qt_clock_gettime (ts=0x7ffa4d4f1a00, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#5  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#6  0x00007ffb11e68529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7ffa48002cd0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007ffb11e68a95 in QTimerInfoList::timerWait (this=0x7ffa48002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0x00007ffb11e69e7e in timerSourcePrepareHelper (timeout=0x7ffa4d4f1ad4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7ffa4d4f1ad4) at kernel/qeventdispatcher_glib.cpp:160
#10 0x00007ffb0e2cd92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007ffb0e2ce2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007ffb11e6aa9b in QEventDispatcherGlib::processEvents (this=0x7ffa480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffa4d4f1c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007ffb11c2e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007ffb14e6aed6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007ffb11c3384e in QThreadPrivate::start (arg=0x33c22a0) at thread/qthread_unix.cpp:331
#18 0x00007ffb10d206fa in start_thread (arg=0x7ffa4d4f2700) at pthread_create.c:333
#19 0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7ffae1f98700 (LWP 2982)):
#0  0x00007ffb0e2cdb56 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffb0e2ce317 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb11e6aa9b in QEventDispatcherGlib::processEvents (this=0x7ffa5800de90, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffae1f97cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffb11c2e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007ffa4ffe37d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007ffb11c3384e in QThreadPrivate::start (arg=0x36c27a0) at thread/qthread_unix.cpp:331
#8  0x00007ffb10d206fa in start_thread (arg=0x7ffae1f98700) at pthread_create.c:333
#9  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7ffae8c24700 (LWP 2771)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffb168b3bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007ffb168b3c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007ffb10d206fa in start_thread (arg=0x7ffae8c24700) at pthread_create.c:333
#4  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7ffaea378700 (LWP 2763)):
#0  0x00007ffb0e2cdb3f in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007ffb0e2ce317 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb11e6aa9b in QEventDispatcherGlib::processEvents (this=0x7ffadc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffaea377ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffb11c2e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007ffb144df3c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ffb11c3384e in QThreadPrivate::start (arg=0x2269660) at thread/qthread_unix.cpp:331
#8  0x00007ffb10d206fa in start_thread (arg=0x7ffaea378700) at pthread_create.c:333
#9  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7ffaec163700 (LWP 2762)):
#0  0x00007ffb1153de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffb0e2ce39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb11e6aa9b in QEventDispatcherGlib::processEvents (this=0x7ffae40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffaec162ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007ffb11c2e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007ffb144df3c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ffb11c3384e in QThreadPrivate::start (arg=0x2197e00) at thread/qthread_unix.cpp:331
#8  0x00007ffb10d206fa in start_thread (arg=0x7ffaec163700) at pthread_create.c:333
#9  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7ffaf0d9e700 (LWP 2759)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ffaf8ed8213 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007ffaf8ed7937 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007ffb10d206fa in start_thread (arg=0x7ffaf0d9e700) at pthread_create.c:333
#4  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ffafb5ef700 (LWP 2757)):
#0  0x00007ffb115399cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffb0e311740 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb0e2cde84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb0e2ce340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffb11e6aa9b in QEventDispatcherGlib::processEvents (this=0x7ffaf40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffafb5eece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007ffb11c2e8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007ffb144df3c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007ffb11c3384e in QThreadPrivate::start (arg=0x1eaf290) at thread/qthread_unix.cpp:331
#10 0x00007ffb10d206fa in start_thread (arg=0x7ffafb5ef700) at pthread_create.c:333
#11 0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ffb02145700 (LWP 2696)):
#0  0x00007ffb1153de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffb15618c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffb1561a8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffb04293629 in QXcbEventReader::run (this=0x1de0b60) at qxcbconnection.cpp:1253
#4  0x00007ffb11c3384e in QThreadPrivate::start (arg=0x1de0b60) at thread/qthread_unix.cpp:331
#5  0x00007ffb10d206fa in start_thread (arg=0x7ffb02145700) at pthread_create.c:333
#6  0x00007ffb11549b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ffb16e688c0 (LWP 2687)):
[KCrash Handler]
#6  QMetaObject::ConnectionListsRef::ConnectionListsRef (connectionLists=0x7ffb14618190, this=0x7ffd4c40a9b0) at kernel/qobject.cpp:3616
#7  QMetaObject::activate (sender=0x3f88210, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3633
#8  0x00007ffb142af132 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007ffb14520ada in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007ffb145256f2 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007ffb145481af in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007ffb14548968 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007ffb11e43180 in QMetaObject::activate (sender=sender@entry=0x3af7a10, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd4c40ad90) at kernel/qobject.cpp:3728
#14 0x00007ffb11e437d7 in QMetaObject::activate (sender=sender@entry=0x3af7a10, m=m@entry=0x7ffb1205cec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffd4c40ad90) at kernel/qobject.cpp:3578
#15 0x00007ffb11ebf1e6 in QAbstractItemModel::layoutChanged (this=this@entry=0x3af7a10, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:562
#16 0x00007ffb11de3dea in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=<optimized out>, source_top_left=..., source_bottom_right=..., roles=...) at itemmodels/qsortfilterproxymodel.cpp:1207
#17 0x00007ffb11de5898 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x3af7a10, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=5, _a=_a@entry=0x7ffd4c40b090) at .moc/moc_qsortfilterproxymodel.cpp:202
#18 0x00007ffb11e42fca in QMetaObject::activate (sender=0x3756a00, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd4c40b090) at kernel/qobject.cpp:3713
#19 0x00007ffb11e437d7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffb1205cec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd4c40b090) at kernel/qobject.cpp:3578
#20 0x00007ffb11ebf0fc in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:548
#21 0x00007ffa4599052d in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib/x86_64-linux-gnu/libplasmanm_internal.so
#22 0x00007ffa4599764f in NetworkModel::addActiveConnection(QSharedPointer<NetworkManager::ActiveConnection> const&) () from /usr/lib/x86_64-linux-gnu/libplasmanm_internal.so
#23 0x00007ffa45997b43 in NetworkModel::activeConnectionAdded(QString const&) () from /usr/lib/x86_64-linux-gnu/libplasmanm_internal.so
#24 0x00007ffb11e42e4f in QtPrivate::QSlotObjectBase::call (a=0x7ffd4c40b390, r=0x3756a00, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#25 QMetaObject::activate (sender=0x7ffa459799a0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#26 0x00007ffa4572ceb5 in NetworkManager::Notifier::activeConnectionAdded(QString const&) () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#27 0x00007ffa456b0f70 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#28 0x00007ffb11e42e4f in QtPrivate::QSlotObjectBase::call (a=0x7ffd4c40b6a0, r=0x7ffa459799a0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#29 QMetaObject::activate (sender=0x7ffa459799c0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#30 0x00007ffa45738140 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#31 0x00007ffa4573e8e0 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#32 0x00007ffb16fae913 in QDBusConnectionPrivate::deliverCall (this=0x7ffadc3ada60, object=0x7ffa459799c0, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:978
#33 0x00007ffb11e43ea1 in QObject::event (this=0x7ffa459799c0, e=<optimized out>) at kernel/qobject.cpp:1239
#34 0x00007ffb1270705c in QApplicationPrivate::notify_helper (this=this@entry=0x1dbf7c0, receiver=receiver@entry=0x7ffa459799c0, e=e@entry=0x4f97f90) at kernel/qapplication.cpp:3716
#35 0x00007ffb1270c516 in QApplication::notify (this=0x7ffd4c40bf50, receiver=0x7ffa459799c0, e=0x4f97f90) at kernel/qapplication.cpp:3499
#36 0x00007ffb11e1462b in QCoreApplication::notifyInternal (this=0x7ffd4c40bf50, receiver=0x7ffa459799c0, event=event@entry=0x4f97f90) at kernel/qcoreapplication.cpp:965
#37 0x00007ffb11e16a26 in QCoreApplication::sendEvent (event=0x4f97f90, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1db5600) at kernel/qcoreapplication.cpp:1593
#39 0x00007ffb11e16f08 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#40 0x00007ffb11e6a673 in postEventSourceDispatch (s=0x1e111c0) at kernel/qeventdispatcher_glib.cpp:271
#41 0x00007ffb0e2ce1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007ffb0e2ce400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007ffb0e2ce4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007ffb11e6aa7f in QEventDispatcherGlib::processEvents (this=0x1db5560, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#45 0x00007ffb11e11dea in QEventLoop::exec (this=this@entry=0x7ffd4c40be00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#46 0x00007ffb11e19e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#47 0x000000000041bfe0 in ?? ()
#48 0x00007ffb11463830 in __libc_start_main (main=0x41b5c0, argc=2, argv=0x7ffd4c40c0d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd4c40c0c8) at ../csu/libc-start.c:291
#49 0x000000000041c149 in _start ()

Possible duplicates by query: bug 369282, bug 368781, bug 368667, bug 366439, bug 366369.

Reported using DrKonqi