Bug 376019

Application: plasmashell (5.8.3)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.36-8-default x86_64
Distribution: "openSUSE Leap 42.2"

-- Information about the crash:
- What I was doing when the application crashed:
Restoring from sleep aafter detaching from secondry display

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fe47e2df900 (LWP 1632))]

Thread 8 (Thread 0x7fe3b45dd700 (LWP 1907)):
#0  0x00007fe477a0349d in poll () from /lib64/libc.so.6
#1  0x00007fe4740cb314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe47830a32b in QEventDispatcherGlib::processEvents (this=0x7fe3ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fe3b45dcc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe4780f2f1a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007fe3b5a058f7 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#7  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x48914d0) at thread/qthread_unix.cpp:341
#8  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fe3c5fab700 (LWP 1848)):
#0  0x00007fe477a0349d in poll () from /lib64/libc.so.6
#1  0x00007fe4740cb314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe47830a32b in QEventDispatcherGlib::processEvents (this=0x7fe3c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fe3c5faac70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe4780f2f1a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007fe47bf81632 in ?? () from /usr/lib64/libQt5Quick.so.5
#7  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x252b8d0) at thread/qthread_unix.cpp:341
#8  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fe45c982700 (LWP 1842)):
#0  0x00007fe4772110af in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fe47d9ba93b in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007fe47d9ba969 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fe45e5e4700 (LWP 1841)):
#0  0x00007fe47410c7b9 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fe4740ca390 in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe4740cb1d5 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fe47830a32b in QEventDispatcherGlib::processEvents (this=0x7fe44c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fe45e5e3cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fe4780f2f1a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007fe47b3fe9c8 in ?? () from /usr/lib64/libQt5Qml.so.5
#8  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x1e07e30) at thread/qthread_unix.cpp:341
#9  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fe45ffff700 (LWP 1747)):
#0  0x00007fe477a0349d in poll () from /lib64/libc.so.6
#1  0x00007fe4740cb314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe47830a32b in QEventDispatcherGlib::processEvents (this=0x7fe4540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fe45fffecb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe4780f2f1a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007fe47b3fe9c8 in ?? () from /usr/lib64/libQt5Qml.so.5
#7  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x1cfd6e0) at thread/qthread_unix.cpp:341
#8  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fe465bef700 (LWP 1660)):
#0  0x00007fe477a0349d in poll () from /lib64/libc.so.6
#1  0x00007fe4740cb314 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe47830a32b in QEventDispatcherGlib::processEvents (this=0x7fe4580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fe465beeca0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fe4780f2f1a in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007fe478e731d5 in ?? () from /usr/lib64/libQt5DBus.so.5
#7  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x7fe4790dbce0) at thread/qthread_unix.cpp:341
#8  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fe4677f5700 (LWP 1658)):
#0  0x00007fe477a0349d in poll () from /lib64/libc.so.6
#1  0x00007fe47c9353e2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007fe47c936fcf in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fe469b4b839 in QXcbEventReader::run (this=0x1c46cd0) at qxcbconnection.cpp:1325
#4  0x00007fe4780f79e9 in QThreadPrivate::start (arg=0x1c46cd0) at thread/qthread_unix.cpp:341
#5  0x00007fe47720c734 in start_thread () from /lib64/libpthread.so.0
#6  0x00007fe477a0bd3d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fe47e2df900 (LWP 1632)):
[KCrash Handler]
#6  QWeakPointer<QObject>::data (this=0x10) at /usr/include/qt5/QtCore/qsharedpointer_impl.h:597
#7  QPointer<Plasma::Containment>::data (this=0x10) at /usr/include/qt5/QtCore/qpointer.h:80
#8  QPointer<Plasma::Containment>::operator Plasma::Containment* (this=0x10) at /usr/include/qt5/QtCore/qpointer.h:86
#9  PlasmaQuick::ContainmentView::containment (this=0x2525a50) at /usr/src/debug/plasma-framework-5.27.0~20160928~b115ea1.git/src/plasmaquick/containmentview.cpp:263
#10 0x000000000043d89e in ShellCorona::screenForContainment (this=0x1cc2550, containment=0x1f2c330) at /usr/src/debug/plasma-workspace-5.8.3/shell/shellcorona.cpp:1802
#11 0x000000000043d7ef in ShellCorona::screenForContainment (this=0x1cc2550, containment=0x1f52040) at /usr/src/debug/plasma-workspace-5.8.3/shell/shellcorona.cpp:1794
#12 0x00007fe3b6b137ae in NotificationsApplet::onScreenChanges (this=0x58a7260) at /usr/src/debug/plasma-workspace-5.8.3/applets/notifications/lib/notificationsapplet.cpp:65
#13 0x00007fe4782e41c3 in QtPrivate::QSlotObjectBase::call (a=0x7fffb1e73b60, r=0x58a7260, this=0x58a70e0) at ../../src/corelib/kernel/qobject_impl.h:124
#14 QMetaObject::activate (sender=sender@entry=0x7fe47b129c00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3715
#15 0x00007fe4782e4717 in QMetaObject::activate (sender=sender@entry=0x7fe47b129c00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, m=m@entry=0x7fe47b128b60 <KWindowSystem::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3595
#16 0x00007fe47af1b3c3 in KWindowSystem::workAreaChanged (this=this@entry=0x7fe47b129c00 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>) at /usr/src/debug/kwindowsystem-5.26.0/build/src/moc_kwindowsystem.cpp:337
#17 0x00007fe4645c9434 in NETEventFilter::nativeEventFilter (this=0x2236990, ev=0x7fe460007fb0) at /usr/src/debug/kwindowsystem-5.26.0/src/platforms/xcb/kwindowsystem.cpp:258
#18 0x00007fe4782b7270 in QAbstractEventDispatcher::filterNativeEvent (this=<optimized out>, eventType=..., message=message@entry=0x7fe460007fb0, result=result@entry=0x7fffb1e73d28) at kernel/qabstracteventdispatcher.cpp:460
#19 0x00007fe469b49be4 in QXcbConnection::handleXcbEvent (this=this@entry=0x1c3b0c0, event=event@entry=0x7fe460007fb0) at qxcbconnection.cpp:1091
#20 0x00007fe469b4bc3b in QXcbConnection::processXcbEvents (this=0x1c3b0c0) at qxcbconnection.cpp:1723
#21 0x00007fe4782e5166 in QObject::event (this=0x1c3b0c0, e=<optimized out>) at kernel/qobject.cpp:1256
#22 0x00007fe479241e3c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x1c3b0c0, e=0x7fe46000a970) at kernel/qapplication.cpp:3804
#23 0x00007fe47924649a in QApplication::notify (this=0x7fffb1e74530, receiver=0x1c3b0c0, e=0x7fe46000a970) at kernel/qapplication.cpp:3561
#24 0x00007fe4782b9fc5 in QCoreApplication::notifyInternal2 (receiver=0x1c3b0c0, event=event@entry=0x7fe46000a970) at kernel/qcoreapplication.cpp:1015
#25 0x00007fe4782bbdaa in QCoreApplication::sendEvent (event=0x7fe46000a970, receiver=<optimized out>) at kernel/qcoreapplication.h:225
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1c210b0) at kernel/qcoreapplication.cpp:1650
#27 0x00007fe4782bc358 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#28 0x00007fe47830ac83 in postEventSourceDispatch (s=0x1c6fc40) at kernel/qeventdispatcher_glib.cpp:270
#29 0x00007fe4740cb134 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#30 0x00007fe4740cb388 in ?? () from /usr/lib64/libglib-2.0.so.0
#31 0x00007fe4740cb42c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#32 0x00007fe47830a30c in QEventDispatcherGlib::processEvents (this=0x1c64d10, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#33 0x00007fe4782b7fdb in QEventLoop::exec (this=this@entry=0x7fffb1e743b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#34 0x00007fe4782bfec6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#35 0x00007fe47880570c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1607
#36 0x00007fe47923f045 in QApplication::exec () at kernel/qapplication.cpp:2979
#37 0x000000000041eacf in main (argc=2, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.8.3/shell/main.cpp:166

Possible duplicates by query: bug 374759, bug 374479, bug 373885, bug 372578, bug 372237.

Reported using DrKonqi