Immediately after logon (from KDM) Plasma crashes with the following backtrace:

Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6e7f00a8c0 (LWP 2446))]

Thread 9 (Thread 0x7f6e66ba6700 (LWP 2448)):
#0  0x00007f6e7864b26d in poll () from /lib64/libc.so.6
#1  0x00007f6e7d478432 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f6e7d47a007 in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f6e6973f7f9 in ?? () from /usr/lib64/qt5/plugins/platforms/libqxcb.so
#4  0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x11ff4a0) at thread/qthread_unix.cpp:337
#5  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f6e5fdfa700 (LWP 2450)):
#0  0x00007f6e7864724d in read () from /lib64/libc.so.6
#1  0x00007f6e7050ef75 in ?? () from /usr/lib64/nvidia/tls/libnvidia-tls.so.352.30
#2  0x00007f6e74da5850 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f6e74d629c4 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f6e74d62e38 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f6e74d62f9c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f6e78f5b20b in QEventDispatcherGlib::processEvents (this=0x7f6e580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f6e78f045ea in QEventLoop::exec (this=this@entry=0x7f6e5fdf9cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f6e78d3213c in QThread::exec (this=this@entry=0x12e9f40) at thread/qthread.cpp:503
#9  0x00007f6e7bf5bce5 in QQmlThreadPrivate::run (this=0x12e9f40) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x12e9f40) at thread/qthread_unix.cpp:337
#11 0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f6e536a9700 (LWP 2466)):
#0  0x00007f6e7864724d in read () from /lib64/libc.so.6
#1  0x00007f6e7050ef75 in ?? () from /usr/lib64/nvidia/tls/libnvidia-tls.so.352.30
#2  0x00007f6e74da5850 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f6e74d629c4 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f6e74d62e38 in ?? () from /usr/lib64/libglib-2.0.so.0
#5  0x00007f6e74d62f9c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#6  0x00007f6e78f5b20b in QEventDispatcherGlib::processEvents (this=0x7f6e4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007f6e78f045ea in QEventLoop::exec (this=this@entry=0x7f6e536a8cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f6e78d3213c in QThread::exec (this=this@entry=0x16fdb60) at thread/qthread.cpp:503
#9  0x00007f6e7bf5bce5 in QQmlThreadPrivate::run (this=0x16fdb60) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#10 0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x16fdb60) at thread/qthread_unix.cpp:337
#11 0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f6e513c4700 (LWP 2470)):
#0  0x00007f6e74da6b54 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f6e74d62540 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f6e74d62dc3 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f6e74d62f9c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f6e78f5b20b in QEventDispatcherGlib::processEvents (this=0x7f6e480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f6e78f045ea in QEventLoop::exec (this=this@entry=0x7f6e513c3cf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6e78d3213c in QThread::exec (this=this@entry=0x14ad5b0) at thread/qthread.cpp:503
#7  0x00007f6e7bf5bce5 in QQmlThreadPrivate::run (this=0x14ad5b0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/ftw/qqmlthread.cpp:141
#8  0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x14ad5b0) at thread/qthread_unix.cpp:337
#9  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f6e439c4700 (LWP 2471)):
#0  0x00007f6e77e5907f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6e7e6ea7f4 in ?? () from /usr/lib64/libQt5Script.so.5
#2  0x00007f6e7e6ea839 in ?? () from /usr/lib64/libQt5Script.so.5
#3  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f6dc0e2a700 (LWP 2472)):
#0  0x00007f6e7864b26d in poll () from /lib64/libc.so.6
#1  0x00007f6e74d62e94 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f6e74d62f9c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f6e78f5b20b in QEventDispatcherGlib::processEvents (this=0x7f6dbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f6e78f045ea in QEventLoop::exec (this=this@entry=0x7f6dc0e29cb0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6e78d3213c in QThread::exec (this=this@entry=0x1506150) at thread/qthread.cpp:503
#6  0x00007f6e7cad5ae2 in QQuickPixmapReader::run (this=0x1506150) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/util/qquickpixmapcache.cpp:714
#7  0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x1506150) at thread/qthread_unix.cpp:337
#8  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f6dbb02b700 (LWP 2474)):
#0  0x00007f6e77e5907f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6e78d3801b in wait (time=18446744073709551615, this=0x15c1430) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x1be2a18, mutex=mutex@entry=0x1be2a10, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f6e7cb44a2e in takeEvent (wait=true, this=0x1be2a08) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:232
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1be2990) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:643
#5  0x00007f6e7cb45273 in QSGRenderThread::run (this=0x1be2990) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:672
#6  0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x1be2990) at thread/qthread_unix.cpp:337
#7  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f6db3fff700 (LWP 2476)):
#0  0x00007f6e77e5907f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f6e78d3801b in wait (time=18446744073709551615, this=0x1c3b070) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=this@entry=0x1c37108, mutex=mutex@entry=0x1c37100, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f6e7cb44a2e in takeEvent (wait=true, this=0x1c370f8) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:232
#4  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x1c37080) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:643
#5  0x00007f6e7cb45273 in QSGRenderThread::run (this=0x1c37080) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/quick/scenegraph/qsgthreadedrenderloop.cpp:672
#6  0x00007f6e78d36eaf in QThreadPrivate::start (arg=0x1c37080) at thread/qthread_unix.cpp:337
#7  0x00007f6e77e534a4 in start_thread () from /lib64/libpthread.so.0
#8  0x00007f6e78653bfd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f6e7f00a8c0 (LWP 2446)):
[KCrash Handler]
#6  inUse (this=0x1) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4managed_p.h:342
#7  QV4::MemoryManager::collectFromJSStack (this=this@entry=0x12e8af0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm.cpp:581
#8  0x00007f6e7be482c3 in QV4::MemoryManager::mark (this=this@entry=0x12e8af0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm.cpp:295
#9  0x00007f6e7be48cb8 in QV4::MemoryManager::runGC (this=this@entry=0x12e8af0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm.cpp:458
#10 0x00007f6e7be49b43 in QV4::MemoryManager::allocData (this=0x12e8af0, size=size@entry=112) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm.cpp:211
#11 0x00007f6e7be7375b in allocManaged (size=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm_p.h:94
#12 QV4::Members::ensureIndex (this=this@entry=0x7f6db802e720, e=0x152ebd0, idx=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4memberdata.cpp:54
#13 0x00007f6e7be75c11 in QV4::Object::ensureMemberIndex (this=this@entry=0x7f6db802e710, idx=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4object.cpp:205
#14 0x00007f6e7be75c55 in QV4::Object::insertMember (this=0x7f6db802e710, s=<optimized out>, p=..., attributes=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4object.cpp:214
#15 0x00007f6e7be67c3f in QV4::SimpleScriptFunction::Data::Data (this=this@entry=0x7f6db802e710, scope=scope@entry=0x7f6db0016690, function=function@entry=0x177dac0, createProto=createProto@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4functionobject.cpp:439
#16 0x00007f6e7be67d42 in Data (function=0x177dac0, scope=0x7f6db0016690, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4functionobject.cpp:355
#17 alloc<QV4::ScriptFunction, QV4::ExecutionContext*, QV4::Function*> (arg2=0x177dac0, arg1=0x7f6db0016690, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4mm_p.h:118
#18 QV4::FunctionObject::createScriptFunction (scope=scope@entry=0x7f6db0016690, function=0x177dac0, createProto=createProto@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4functionobject.cpp:174
#19 0x00007f6e7beb4f8f in QV4::Runtime::closure (ctx=0x7f6db0016690, functionId=2) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4runtime.cpp:263
#20 0x00007f6e5c000374 in ?? ()
#21 0x00007f6daa7e9ce0 in ?? ()
#22 0x00007f6e503c5908 in ?? ()
#23 0x00007f6e50384000 in ?? ()
#24 0x00007f6e7be3e5df in QV4::ExecutionContext::newQmlContext (this=0x7f6e503c59f0, f=0x152ebd0, qml=0x7ffcfde95ff0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4context.cpp:97
#25 0x00007f6e503c5950 in ?? ()
#26 0x00007f6db0074b00 in ?? ()
#27 0x00007f6e7be89bac in QV4::QmlBindingWrapper::call (that=0x7f6db0074b00) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4script.cpp:108
#28 0x00007f6e7be8b572 in call (d=<optimized out>, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4object_p.h:278
#29 QV4::Script::run (this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4script.cpp:300
#30 0x00007f6e7befbe37 in QQmlScriptData::scriptValueForContext (this=0x7f6e480619c0, parentCtxt=0x247ba10) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmltypeloader.cpp:2646
#31 0x00007f6e7bf585ab in QQmlObjectCreator::create (this=this@entry=0x7ffcfde96290, subComponentIndex=subComponentIndex@entry=-1, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:216
#32 0x00007f6e7bf579ee in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde97400, index=10, parent=0x24786b0, isContextObject=isContextObject@entry=false) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1091
#33 0x00007f6e7bf598d2 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffcfde97400, property=property@entry=0x7f6e4802c668, binding=binding@entry=0x7f6e486397dc) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:774
#34 0x00007f6e7bf59c6b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffcfde97400, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:733
#35 0x00007f6e7bf564cd in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffcfde97400, index=9, instance=0x2478680, instance@entry=0x24786b0, bindingTarget=0x2478680, bindingTarget@entry=0x24786b0, valueTypeProperty=valueTypeProperty@entry=0x0, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1348
#36 0x00007f6e7bf56e91 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde97400, index=9, parent=<optimized out>, isContextObject=isContextObject@entry=false) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1184
#37 0x00007f6e7bf598d2 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffcfde97400, property=property@entry=0x7f6e4802c668, binding=binding@entry=0x7f6e48639618) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:774
#38 0x00007f6e7bf59c6b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffcfde97400, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:733
#39 0x00007f6e7bf564cd in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffcfde97400, index=7, instance=0x24771f0, instance@entry=0x2478680, bindingTarget=0x24771f0, bindingTarget@entry=0x2478680, valueTypeProperty=valueTypeProperty@entry=0x0, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1348
#40 0x00007f6e7bf56e91 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde97400, index=7, parent=<optimized out>, isContextObject=isContextObject@entry=false) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1184
#41 0x00007f6e7bf598d2 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffcfde97400, property=property@entry=0x7f6e4802c668, binding=binding@entry=0x7f6e486391bc) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:774
#42 0x00007f6e7bf59c6b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffcfde97400, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:733
#43 0x00007f6e7bf564cd in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffcfde97400, index=0, instance=0x0, instance@entry=0x24771f0, bindingTarget=0x2472800, bindingTarget@entry=0x24771f0, valueTypeProperty=valueTypeProperty@entry=0x0, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1348
#44 0x00007f6e7bf56e91 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde97400, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1184
#45 0x00007f6e7bf57f84 in QQmlObjectCreator::create (this=this@entry=0x7ffcfde97400, subComponentIndex=subComponentIndex@entry=-1, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:222
#46 0x00007f6e7bf579ee in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde98080, index=8, parent=0x2472a30, isContextObject=isContextObject@entry=false) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1091
#47 0x00007f6e7bf598d2 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffcfde98080, property=property@entry=0x7f6e4802c668, binding=binding@entry=0x7f6e485c667c) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:774
#48 0x00007f6e7bf59c6b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffcfde98080, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:733
#49 0x00007f6e7bf564cd in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffcfde98080, index=4, instance=0x2453290, instance@entry=0x2472a30, bindingTarget=0x2453290, bindingTarget@entry=0x2472a30, valueTypeProperty=valueTypeProperty@entry=0x0, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1348
#50 0x00007f6e7bf56e91 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde98080, index=4, parent=<optimized out>, isContextObject=isContextObject@entry=false) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1184
#51 0x00007f6e7bf598d2 in QQmlObjectCreator::setPropertyBinding (this=this@entry=0x7ffcfde98080, property=property@entry=0x7f6e480885b8, binding=binding@entry=0x7f6e485c640c) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:774
#52 0x00007f6e7bf59c6b in QQmlObjectCreator::setupBindings (this=this@entry=0x7ffcfde98080, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:733
#53 0x00007f6e7bf564cd in QQmlObjectCreator::populateInstance (this=this@entry=0x7ffcfde98080, index=0, instance=0x0, instance@entry=0x2453290, bindingTarget=0x0, bindingTarget@entry=0x2453290, valueTypeProperty=valueTypeProperty@entry=0x0, bindingsToSkip=...) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1348
#54 0x00007f6e7bf56e91 in QQmlObjectCreator::createInstance (this=this@entry=0x7ffcfde98080, index=index@entry=0, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1184
#55 0x00007f6e7bf57f84 in QQmlObjectCreator::create (this=this@entry=0x7ffcfde98080, subComponentIndex=subComponentIndex@entry=-1, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:222
#56 0x00007f6e7bf579ee in QQmlObjectCreator::createInstance (this=this@entry=0x2455c30, index=index@entry=4, parent=parent@entry=0x0, isContextObject=isContextObject@entry=true) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:1091
#57 0x00007f6e7bf57f84 in QQmlObjectCreator::create (this=0x2455c30, subComponentIndex=3, parent=parent@entry=0x0, interrupt=interrupt@entry=0x0) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlobjectcreator.cpp:222
#58 0x00007f6e7bee37f5 in QQmlComponentPrivate::beginCreate (this=0x24ef340, context=0x24ed000) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlcomponent.cpp:880
#59 0x00007f6e7bee1e88 in QQmlComponent::createObject (this=0x24ed0c0, args=0x7ffcfde98540) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/qml/qqmlcomponent.cpp:1222
#60 0x00007f6e7bfbe8cc in QQmlComponent::qt_static_metacall (_o=_o@entry=0x24ed0c0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=6, _a=_a@entry=0x7ffcfde98510) at .moc/moc_qqmlcomponent.cpp:146
#61 0x00007f6e7bfbea45 in QQmlComponent::qt_metacall (this=0x24ed0c0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7ffcfde98510) at .moc/moc_qqmlcomponent.cpp:205
#62 0x00007f6e7bea5c6c in QV4::QObjectMethod::callInternal (this=<optimized out>, callData=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4qobjectwrapper.cpp:1882
#63 0x00007f6e7beb31a9 in call (d=0x7f6e503c4080, this=<optimized out>) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4object_p.h:278
#64 QV4::Runtime::callProperty (context=0x7ffcfde98730, name=0x7f6e502fc220, callData=0x7f6e503c4080) at /usr/src/debug/qtdeclarative-opensource-src-5.4.2/src/qml/jsruntime/qv4runtime.cpp:930
#65 0x00007f6da56282d5 in ?? ()
#66 0x0000000002456090 in ?? ()
#67 0x0000000002462940 in ?? ()
#68 0x0003000000000001 in ?? ()
#69 0x00007f6e7d20eb55 in Plasma::DataEnginePrivate::requestSource (this=0x7f6e503c40c0, sourceName=..., newSource=0x7ffcfde986d0) at /usr/src/debug/plasma-framework-5.14.0/src/plasma/dataengine.cpp:603
#70 0x00007f6e7d20ebb2 in Plasma::DataEngine::connectSource (this=0x7f6db802c970, source=..., visualization=0x7f6e7be69736 <QV4::SimpleScriptFunction::call(QV4::Managed*, QV4::CallData*)+438>, pollingInterval=1345863680, intervalAlignment=(unknown: 22211536)) at /usr/src/debug/plasma-framework-5.14.0/src/plasma/dataengine.cpp:124
#71 0x00007f6e50384000 in ?? ()
#72 0x00007f6db0015ac0 in ?? ()
#73 0x0000000000000000 in ?? ()

This usually repeats some times, after some restarts of Plasma all is fine.

Reproducible: Sometimes

Steps to Reproduce:
1. Logon in KDM
2.
3.

Actual Results:  
Repeated crashes of Plasma

Expected Results:  
Clean startup

openSUSE Tumbleweed 20150924
KDE Plasma Version: 5.4.1
Qt Version: 5.4.2
Kernel Version: 4.1.6-3
OS Type: 64-bit