Bug 361519

Summary: Plasmashell crashed after resume from suspend with connected external monitor
Product: [Plasma] plasmashell Reporter: Lukáš Karas <lukas.karas>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED FIXED    
Severity: crash CC: bshah, garystriplett, notmart, plasma-bugs-null, sebas
Priority: NOR Keywords: drkonqi
Version First Reported In: 5.6.2   
Target Milestone: 1.0   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Lukáš Karas 2016-04-08 09:13:17 UTC 
Application: plasmashell (5.6.2)
 (Compiled from sources)
Qt Version: 5.5.1
Frameworks Version: 5.21.0
Operating System: Linux 4.5.0 x86_64
Distribution: Ubuntu Xenial Xerus (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
Connect notebook to docker station with connected external monitor and resume it from sleep. 
My plasma-workspace git HEAD is 57aa4023f894e1ec2cab1ca5d2542a7821d19aea (compiled before few days ago)

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9773ab38c0 (LWP 2618))]

Thread 10 (Thread 0x7f975e8d4700 (LWP 2643)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f97721c4c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f97721c68d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9760a224a9 in QXcbEventReader::run (this=0x15a2a20) at qxcbconnection.cpp:1253
#4  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x15a2a20) at thread/qthread_unix.cpp:331
#5  0x00007f976d6b46fa in start_thread (arg=0x7f975e8d4700) at pthread_create.c:333
#6  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f9757bd1700 (LWP 2667)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f976ab4e32c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f97500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f9757bd0ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=this@entry=0x16909c0) at thread/qthread.cpp:503
#6  0x00007f9770fd03b5 in QQmlThreadPrivate::run (this=0x16909c0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x16909c0) at thread/qthread_unix.cpp:331
#8  0x00007f976d6b46fa in start_thread (arg=0x7f9757bd1700) at pthread_create.c:333
#9  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f974c614700 (LWP 2671)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f976ab4e32c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f97440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f974c613ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=this@entry=0x1a6aba0) at thread/qthread.cpp:503
#6  0x00007f9770fd03b5 in QQmlThreadPrivate::run (this=0x1a6aba0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x1a6aba0) at thread/qthread_unix.cpp:331
#8  0x00007f976d6b46fa in start_thread (arg=0x7f974c614700) at pthread_create.c:333
#9  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f974a752700 (LWP 2699)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f976ab4e32c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f973c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f974a751ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=this@entry=0x1b420b0) at thread/qthread.cpp:503
#6  0x00007f9770fd03b5 in QQmlThreadPrivate::run (this=0x1b420b0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x1b420b0) at thread/qthread_unix.cpp:331
#8  0x00007f976d6b46fa in start_thread (arg=0x7f974a752700) at pthread_create.c:333
#9  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f97489c0700 (LWP 2768)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f97734f8bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f97734f8c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f976d6b46fa in start_thread (arg=0x7f97489c0700) at pthread_create.c:333
#4  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f9741734700 (LWP 2811)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f976ab4e32c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f96b400bb40, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f9741733c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=this@entry=0x1cd4fa0) at thread/qthread.cpp:503
#6  0x00007f97719baed6 in QQuickPixmapReader::run (this=0x1cd4fa0) at util/qquickpixmapcache.cpp:817
#7  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x1cd4fa0) at thread/qthread_unix.cpp:331
#8  0x00007f976d6b46fa in start_thread (arg=0x7f9741734700) at pthread_create.c:333
#9  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f9740f33700 (LWP 2955)):
#0  0x00007f976ded25ad in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f976ab4e32c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f96b80031b0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f9740f32d00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x2328430) at thread/qthread_unix.cpp:331
#7  0x00007f976d6b46fa in start_thread (arg=0x7f9740f33700) at pthread_create.c:333
#8  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f9741f35700 (LWP 2957)):
#0  0x00007f976e5c0d7f in QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x1a71498: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  QGenericAtomicOps<QBasicAtomicOps<8> >::testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x1a71498: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  QBasicAtomicPointer<QMutexData>::testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x1a71498) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:278
#3  QBasicMutex::fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x1a71498) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x1a71498) at thread/qmutex.cpp:264
#5  0x00007f976e7ff011 in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  QThreadData::canWaitLocked (this=0x1a71470) at ../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:240
#8  postEventSourcePrepare (s=0x7f96b00010c0, timeout=0x7f9741f34b24) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f976ab4d8bd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f976ab4e25b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f96b0004060, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f9741f34ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f976e5c3854 in QThread::exec (this=this@entry=0x22b0910) at thread/qthread.cpp:503
#15 0x00007f96ad52c035 in QQuickXmlQueryEngine::run (this=0x22b0910) at qqmlxmllistmodel.cpp:317
#16 0x00007f976e5c87fe in QThreadPrivate::start (arg=0x22b0910) at thread/qthread_unix.cpp:331
#17 0x00007f976d6b46fa in start_thread (arg=0x7f9741f35700) at pthread_create.c:333
#18 0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f96a206f700 (LWP 3214)):
#0  0x00007f976ab4d842 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f976ab4e25b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f976e7ffa7b in QEventDispatcherGlib::processEvents (this=0x7f969c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7f96a206ecb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f976e5c3854 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f96a455283e in KCupsConnection::run (this=0x2b4ec20) at /media/karry/data/src/print-manager/libkcups/KCupsConnection.cpp:304
#7  0x00007f976e5c87fe in QThreadPrivate::start (arg=0x2b4ec20) at thread/qthread_unix.cpp:331
#8  0x00007f976d6b46fa in start_thread (arg=0x7f96a206f700) at pthread_create.c:333
#9  0x00007f976dede2dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f9773ab38c0 (LWP 2618)):
[KCrash Handler]
#6  0x00007f976de0c518 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f976de0e0ea in __GI_abort () at abort.c:89
#8  0x00007f976e5b5fb1 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578
#9  QMessageLogger::fatal (this=this@entry=0x7ffd90243ab0, msg=msg@entry=0x7f976e873000 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:781
#10 0x00007f976e5b111e in qt_assert (assertion=<optimized out>, file=<optimized out>, line=<optimized out>) at global/qglobal.cpp:2966
#11 0x000000000044b6b0 in ShellCorona::createContainmentForActivity (this=0x167c9f0, activity=..., screenNum=2) at /media/karry/data/src/plasma-workspace/shell/shellcorona.cpp:995
#12 0x000000000044ae6e in ShellCorona::addOutput (this=0x167c9f0, output=...) at /media/karry/data/src/plasma-workspace/shell/shellcorona.cpp:906
#13 0x000000000044a382 in ShellCorona::outputEnabledChanged (this=0x167c9f0) at /media/karry/data/src/plasma-workspace/shell/shellcorona.cpp:802
#14 0x0000000000464aea in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (ShellCorona::*)()>::call(void (ShellCorona::*)(), ShellCorona*, void**) (f=(void (ShellCorona::*)(ShellCorona * const)) 0x44a324 <ShellCorona::outputEnabledChanged()>, o=0x167c9f0, arg=0x7ffd90243e80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:501
#15 0x00000000004633f7 in QtPrivate::FunctionPointer<void (ShellCorona::*)()>::call<QtPrivate::List<>, void>(void (ShellCorona::*)(), ShellCorona*, void**) (f=(void (ShellCorona::*)(ShellCorona * const)) 0x44a324 <ShellCorona::outputEnabledChanged()>, o=0x167c9f0, arg=0x7ffd90243e80) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:520
#16 0x000000000045ffed in QtPrivate::QSlotObject<void (ShellCorona::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x1cc9160, r=0x167c9f0, a=0x7ffd90243e80, ret=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject_impl.h:143
#17 0x00007f976e7d7e2f in QtPrivate::QSlotObjectBase::call (a=0x7ffd90243e80, r=0x167c9f0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#18 QMetaObject::activate (sender=0x1aeb760, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#19 0x00007f9772c32c21 in KScreen::Output::isEnabledChanged (this=0x1aeb760) at /media/karry/data/src/libkscreen/myBuild/src/moc_output.cpp:452
#20 0x00007f9772c2c0ab in KScreen::Output::apply (this=0x1aeb760, other=...) at /media/karry/data/src/libkscreen/src/output.cpp:515
#21 0x00007f9772c16549 in KScreen::Config::apply (this=0x168e990, other=...) at /media/karry/data/src/libkscreen/src/config.cpp:354
#22 0x00007f9772c2023b in KScreen::ConfigMonitor::Private::updateConfigs (this=0x1cd8810, newConfig=...) at /media/karry/data/src/libkscreen/src/configmonitor.cpp:179
#23 0x00007f9772c1f7ff in KScreen::ConfigMonitor::Private::getConfigFinished (this=0x1cd8810, op=0x1993ae0) at /media/karry/data/src/libkscreen/src/configmonitor.cpp:106
#24 0x00007f9772c245f2 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<KScreen::ConfigOperation*>, void, void (KScreen::ConfigMonitor::Private::*)(KScreen::ConfigOperation*)>::call (f=(void (KScreen::ConfigMonitor::Private::*)(KScreen::ConfigMonitor::Private * const, KScreen::ConfigOperation *)) 0x7f9772c1f6b0 <KScreen::ConfigMonitor::Private::getConfigFinished(KScreen::ConfigOperation*)>, o=0x1cd8810, arg=0x7ffd90244380) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:501
#25 0x00007f9772c23dd8 in QtPrivate::FunctionPointer<void (KScreen::ConfigMonitor::Private::*)(KScreen::ConfigOperation*)>::call<QtPrivate::List<KScreen::ConfigOperation*>, void> (f=(void (KScreen::ConfigMonitor::Private::*)(KScreen::ConfigMonitor::Private * const, KScreen::ConfigOperation *)) 0x7f9772c1f6b0 <KScreen::ConfigMonitor::Private::getConfigFinished(KScreen::ConfigOperation*)>, o=0x1cd8810, arg=0x7ffd90244380) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:520
#26 0x00007f9772c2318f in QtPrivate::QSlotObject<void (KScreen::ConfigMonitor::Private::*)(KScreen::ConfigOperation*), QtPrivate::List<KScreen::ConfigOperation*>, void>::impl (which=1, this_=0x1a02ca0, r=0x1cd8810, a=0x7ffd90244380, ret=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject_impl.h:143
#27 0x00007f976e7d7e2f in QtPrivate::QSlotObjectBase::call (a=0x7ffd90244380, r=0x1cd8810, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#28 QMetaObject::activate (sender=0x1993ae0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3698
#29 0x00007f9772c315de in KScreen::ConfigOperation::finished (this=0x1993ae0, _t1=0x1993ae0) at /media/karry/data/src/libkscreen/myBuild/src/moc_configoperation.cpp:146
#30 0x00007f9772c19503 in KScreen::ConfigOperationPrivate::doEmitResult (this=0x4e354b0) at /media/karry/data/src/libkscreen/src/configoperation.cpp:61
#31 0x00007f9772c3162f in KScreen::ConfigOperationPrivate::qt_static_metacall (_o=0x4e354b0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x4b36450) at /media/karry/data/src/libkscreen/myBuild/src/moc_configoperation_p.cpp:70
#32 0x00007f976e7d8e81 in QObject::event (this=0x4e354b0, e=<optimized out>) at kernel/qobject.cpp:1239
#33 0x00007f976f09c05c in QApplicationPrivate::notify_helper (this=this@entry=0x158b5a0, receiver=receiver@entry=0x4e354b0, e=e@entry=0x52af9b0) at kernel/qapplication.cpp:3716
#34 0x00007f976f0a1516 in QApplication::notify (this=0x7ffd90244ac0, receiver=0x4e354b0, e=0x52af9b0) at kernel/qapplication.cpp:3499
#35 0x00007f976e7a95cb in QCoreApplication::notifyInternal (this=0x7ffd90244ac0, receiver=0x4e354b0, event=event@entry=0x52af9b0) at kernel/qcoreapplication.cpp:965
#36 0x00007f976e7ab9c6 in QCoreApplication::sendEvent (event=0x52af9b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1581600) at kernel/qcoreapplication.cpp:1593
#38 0x00007f976e7abea8 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#39 0x00007f976e7ff653 in postEventSourceDispatch (s=0x15c8b20) at kernel/qeventdispatcher_glib.cpp:271
#40 0x00007f976ab4e137 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f976ab4e390 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f976ab4e43c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f976e7ffa5f in QEventDispatcherGlib::processEvents (this=0x1581230, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#44 0x00007f976e7a6d8a in QEventLoop::exec (this=this@entry=0x7ffd90244940, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#45 0x00007f976e7aee2c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#46 0x0000000000421fb1 in main (argc=2, argv=0x7ffd90244c08) at /media/karry/data/src/plasma-workspace/shell/main.cpp:139

Possible duplicates by query: bug 360584, bug 360397, bug 358762, bug 356148, bug 355943.

Reported using DrKonqi
Comment 1 Marco Martin 2016-04-13 09:07:21 UTC 
can it be reproduced with console output as well? (to see what exactly is the assert being hit)
Comment 2 Sebastian Kügler 2016-05-04 01:20:31 UTC 
This should be fixed by https://git.reviewboard.kde.org/r/125451/ which is blocked by being able to depend on Qt 5.6.
Comment 3 Marco Martin 2016-05-04 11:05:41 UTC 
*** Bug 362123 has been marked as a duplicate of this bug. ***
Comment 4 David Edmundson 2016-07-04 13:50:06 UTC 
KScreen part is now merged so this particular crash won't happen.