After upgrading from kubuntu 12.10 to 13.04, plasma desktop started to fail periodically. The desktop, widgets and panels disappear, krunner still works and windows still function. No particular activity seems to trigger this behaviour, I was browsing in firefox with a kontact window open, and that's it. 

Reproducible: Always

Steps to Reproduce:
No particular steps, it seems to be related to uptime. Memory leak maybe?
Actual Results:  
Desktop, widgets and panel disappear. 


The generated backtrace:

Application: plasma-desktop (0.4)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.0-19-generic i686
Distribution: Ubuntu 13.04

-- Information about the crash:
<In detail, tell us what you were doing  when the application crashed.>

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xaf38db00 (LWP 3657))]

Thread 4 (Thread 0xabc6fb40 (LWP 3658)):
#0  0xb770d424 in __kernel_vsyscall ()
#1  0xb1f8484b in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb75bcd7c in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb2f800ed in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#4  0xb2f8011f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#5  0xb1820101 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#6  0x5c8b0824 in ?? ()
#7  0xbab80424 in ?? ()
#8  0x65000000 in ?? ()
#9  0x001015ff in ?? ()
#10 0xd3890000 in ?? ()
#11 0xfff0013d in ?? ()
#12 0xc30173ff in ?? ()
#13 0x0fe162e8 in ?? ()
#14 0x7bc18100 in ?? ()
#15 0x8b0017fb in ?? ()
#16 0xffff1889 in ?? ()
#17 0x65d8f7ff in ?? ()
#18 0x00000d03 in ?? ()
#19 0x01890000 in ?? ()
#20 0xc3ffc883 in ?? ()
#21 0x00acec81 in ?? ()
#22 0x9c890000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 3 (Thread 0xa4f1db40 (LWP 3659)):
#0  0xb770d424 in __kernel_vsyscall ()
#1  0xb759fdcb in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb1e802db in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1e716d0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1e71831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5facc3f in QEventDispatcherGlib::processEvents (this=0xa4600488, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb5f793ec in QEventLoop::processEvents (this=this@entry=0xa4f1d178, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5f796e1 in QEventLoop::exec (this=this@entry=0xa4f1d178, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5e64fec in QThread::exec (this=this@entry=0x97890c8) at thread/qthread.cpp:542
#9  0xb5f58f2d in QInotifyFileSystemWatcherEngine::run (this=0x97890c8) at io/qfilesystemwatcher_inotify.cpp:256
#10 0xb5e67b18 in QThreadPrivate::start (arg=0x97890c8) at thread/qthread_unix.cpp:338
#11 0xb1820101 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#12 0x5c8b0824 in ?? ()
#13 0xbab80424 in ?? ()
#14 0x65000000 in ?? ()
#15 0x001015ff in ?? ()
#16 0xd3890000 in ?? ()
#17 0xfff0013d in ?? ()
#18 0xc30173ff in ?? ()
#19 0x0fe162e8 in ?? ()
#20 0x7bc18100 in ?? ()
#21 0x8b0017fb in ?? ()
#22 0xffff1889 in ?? ()
#23 0x65d8f7ff in ?? ()
#24 0x00000d03 in ?? ()
#25 0x01890000 in ?? ()
#26 0xc3ffc883 in ?? ()
#27 0x00acec81 in ?? ()
#28 0x9c890000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xa33ffb40 (LWP 3662)):
#0  0xb1eb4a4a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb1eb4d68 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb1e70726 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb1e71578 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb1e71831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5facc3f in QEventDispatcherGlib::processEvents (this=0xa2a00488, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb5f793ec in QEventLoop::processEvents (this=this@entry=0xa33ff178, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5f796e1 in QEventLoop::exec (this=this@entry=0xa33ff178, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5e64fec in QThread::exec (this=this@entry=0x99ff880) at thread/qthread.cpp:542
#9  0xb5f58f2d in QInotifyFileSystemWatcherEngine::run (this=0x99ff880) at io/qfilesystemwatcher_inotify.cpp:256
#10 0xb5e67b18 in QThreadPrivate::start (arg=0x99ff880) at thread/qthread_unix.cpp:338
#11 0xb1820101 in ?? () from /usr/lib/nvidia-304/libGL.so.1
#12 0x5c8b0824 in ?? ()
#13 0xbab80424 in ?? ()
#14 0x65000000 in ?? ()
#15 0x001015ff in ?? ()
#16 0xd3890000 in ?? ()
#17 0xfff0013d in ?? ()
#18 0xc30173ff in ?? ()
#19 0x0fe162e8 in ?? ()
#20 0x7bc18100 in ?? ()
#21 0x8b0017fb in ?? ()
#22 0xffff1889 in ?? ()
#23 0x65d8f7ff in ?? ()
#24 0x00000d03 in ?? ()
#25 0x01890000 in ?? ()
#26 0xc3ffc883 in ?? ()
#27 0x00acec81 in ?? ()
#28 0x9c890000 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xaf38db00 (LWP 3657)):
[KCrash Handler]
#7  0xb5f8ff2c in QMetaObject::addGuard (ptr=ptr@entry=0xbf87c43c) at kernel/qobject.cpp:400
#8  0xb6b68c35 in QPointer (p=..., this=0xbf87c43c) at ../../include/QtCore/../../src/corelib/kernel/qpointer.h:62
#9  takeAt (i=6, this=0xa34fb64) at ../../include/QtCore/../../src/corelib/tools/qlist.h:486
#10 QDeclarativeRepeater::itemsRemoved (this=this@entry=0xa34f988, index=6, count=<optimized out>) at graphicsitems/qdeclarativerepeater.cpp:407
#11 0xb6cc88b2 in qt_static_metacall (_a=0xbf87c554, _id=6, _o=0xa34f988, _c=<optimized out>) at .moc/release-shared/moc_qdeclarativerepeater_p.cpp:106
#12 QDeclarativeRepeater::qt_static_metacall (_o=0xa34f988, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbf87c554) at .moc/release-shared/moc_qdeclarativerepeater_p.cpp:94
#13 0xb5f90b56 in QMetaObject::activate (sender=sender@entry=0xa34ff00, m=m@entry=0xb6db6900 <QDeclarativeVisualModel::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0xbf87c554) at kernel/qobject.cpp:3539
#14 0xb6ccc7fd in QDeclarativeVisualModel::itemsRemoved (this=0xa34ff00, _t1=6, _t2=1) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:161
#15 0xb6b82538 in QDeclarativeVisualDataModel::_q_itemsRemoved (this=0xa34ff00, index=6, count=1) at graphicsitems/qdeclarativevisualitemmodel.cpp:1314
#16 0xb6cccec6 in QDeclarativeVisualDataModel::qt_static_metacall (_o=0xa34ff00, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbf87c704) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:401
#17 0xb5f90b56 in QMetaObject::activate (sender=sender@entry=0x9f7bd98, m=m@entry=0xb6db3e48 <QListModelInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0xbf87c704) at kernel/qobject.cpp:3539
#18 0xb6cbc94d in QListModelInterface::itemsRemoved (this=this@entry=0x9f7bd98, _t1=_t1@entry=6, _t2=_t2@entry=1) at .moc/release-shared/moc_qlistmodelinterface_p.cpp:114
#19 0xb6adfacf in QDeclarativeListModel::remove (this=this@entry=0x9f7bd98, index=6) at util/qdeclarativelistmodel.cpp:402
#20 0xb6cbad45 in QDeclarativeListModel::qt_static_metacall (_o=_o@entry=0x9f7bd98, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=2, _a=_a@entry=0xbf87c8e0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:76
#21 0xb6cbaf44 in QDeclarativeListModel::qt_metacall (this=0x9f7bd98, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbf87c8e0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:123
#22 0xb5f81a55 in metacall (argv=0xbf87c8e0, idx=10, cl=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#23 QMetaObject::metacall (object=0x9f7bd98, cl=QMetaObject::InvokeMetaMethod, idx=10, argv=0xbf87c8e0) at kernel/qmetaobject.cpp:240
#24 0xb6c5d3ab in QDeclarativeObjectMethodScriptClass::callMethod (this=0x9b3a568, object=0x9f7bd98, index=10, returnType=-1081620184, argCount=1, argTypes=0xbf87ca74, ctxt=0xa1ce02a8) at qml/qdeclarativeobjectscriptclass.cpp:970
#25 0xb6c5f001 in QDeclarativeObjectMethodScriptClass::callPrecise (this=0x9b3a568, object=0x9f7bd98, data=..., ctxt=0xa1ce02a8) at qml/qdeclarativeobjectscriptclass.cpp:944
#26 0xb6c5f922 in QDeclarativeObjectMethodScriptClass::call (this=0x9b3a568, o=0xa3595b0, ctxt=0xa1ce02a8) at qml/qdeclarativeobjectscriptclass.cpp:917
#27 0xb30004b3 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#28 0xb2ee9171 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#29 0xb2ec26f7 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#30 0xa9e615c7 in ?? ()
#31 0xb2e7e01d in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#32 0xb2f17053 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#33 0xb2ee91d1 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#34 0xb2fdd2cb in QScriptValue::call(QScriptValue const&, QList<QScriptValue> const&) () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#35 0xb6bbcbb2 in QDeclarativeQtScriptExpression::eval (this=0xab4cac4, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:518
#36 0xb6bbf282 in QDeclarativeQtScriptExpression::scriptValue (this=0xab4cac4, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:470
#37 0xb6bbf577 in QDeclarativeExpressionPrivate::scriptValue (this=0xab4cac4, secondaryScope=0xb30005e0, isUndefined=0xb30005e0) at qml/qdeclarativeexpression.cpp:653
#38 0xb6bbf6e4 in QDeclarativeExpressionPrivate::value (this=0xab4ca78, secondaryScope=0x0, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:667
#39 0xb6bfafcc in QDeclarativeBoundSignal::qt_metacall (this=0xab4c470, c=QMetaObject::InvokeMetaMethod, id=5, a=0xbf87d0dc) at qml/qdeclarativeboundsignal.cpp:199
#40 0xb5f81a55 in metacall (argv=argv@entry=0xbf87d0dc, idx=idx@entry=5, cl=cl@entry=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#41 QMetaObject::metacall (object=object@entry=0xab4c470, cl=cl@entry=QMetaObject::InvokeMetaMethod, idx=idx@entry=5, argv=argv@entry=0xbf87d0dc) at kernel/qmetaobject.cpp:240
#42 0xb5f90d72 in QMetaObject::activate (sender=sender@entry=0x9fc6b20, m=m@entry=0xb6db3b78 <QDeclarativeTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3558
#43 0xb6cbb3d5 in QDeclarativeTimer::triggered (this=this@entry=0x9fc6b20) at .moc/release-shared/moc_qdeclarativetimer_p.cpp:176
#44 0xb6aeb058 in QDeclarativeTimer::finished (this=0x9fc6b20) at util/qdeclarativetimer.cpp:318
#45 0xb6cbb51d in QDeclarativeTimer::qt_static_metacall (_o=0xb30005e0, _id=150449680, _a=<optimized out>, _c=<optimized out>) at .moc/release-shared/moc_qdeclarativetimer_p.cpp:89
#46 0xb5f90b56 in QMetaObject::activate (sender=sender@entry=0xa38ac78, m=m@entry=0xb60e2778 <QAbstractAnimation::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#47 0xb5e47f25 in QAbstractAnimation::finished (this=this@entry=0xa38ac78) at .moc/release-shared/moc_qabstractanimation.cpp:190
#48 0xb5e48830 in QAbstractAnimationPrivate::setState (this=0xabff788, newState=newState@entry=QAbstractAnimation::Stopped) at animation/qabstractanimation.cpp:604
#49 0xb5e48991 in QAbstractAnimation::stop (this=this@entry=0xa38ac78) at animation/qabstractanimation.cpp:958
#50 0xb5e48ac4 in QAbstractAnimation::setCurrentTime (this=this@entry=0xa38ac78, msecs=<optimized out>, msecs@entry=600008) at animation/qabstractanimation.cpp:912
#51 0xb5e48c6f in updateAnimationsTime (this=0x913d928) at animation/qabstractanimation.cpp:235
#52 QUnifiedTimer::updateAnimationsTime (this=0x913d928) at animation/qabstractanimation.cpp:207
#53 0xb5e485dd in QUnifiedTimer::ensureTimerUpdate () at animation/qabstractanimation.cpp:204
#54 0xb5e48744 in QAbstractAnimationPrivate::setState (this=0xadd9688, newState=QAbstractAnimation::Running) at animation/qabstractanimation.cpp:588
#55 0xb5e48d38 in QAbstractAnimation::start (this=0xadd9688, this@entry=0xad4bdd0, policy=(unknown: 2), policy@entry=QAbstractAnimation::KeepWhenStopped) at animation/qabstractanimation.cpp:938
#56 0xb6aeabf6 in QDeclarativeTimer::update (this=this@entry=0xace3508) at util/qdeclarativetimer.cpp:279
#57 0xb6aeaf82 in QDeclarativeTimer::componentComplete (this=0xace3508) at util/qdeclarativetimer.cpp:297
#58 0xb6bca1c9 in QDeclarativeComponentPrivate::complete (enginePriv=0x9b758d0, state=state@entry=0xa34fe64) at qml/qdeclarativecomponent.cpp:962
#59 0xb6bca7a4 in completeCreate (this=0xa34fdf8) at qml/qdeclarativecomponent.cpp:1043
#60 QDeclarativeComponentPrivate::completeCreate (this=0xa34fdf8) at qml/qdeclarativecomponent.cpp:1039
#61 0xb6b82ee6 in QDeclarativeVisualDataModel::item (this=0xa34ff00, index=0, viewId=..., complete=complete@entry=true) at graphicsitems/qdeclarativevisualitemmodel.cpp:1069
#62 0xb6b83582 in QDeclarativeVisualDataModel::item (this=0xa34ff00, index=0, complete=true) at graphicsitems/qdeclarativevisualitemmodel.cpp:958
#63 0xb6b68a07 in QDeclarativeRepeater::itemsInserted (this=this@entry=0xa34f988, index=0, count=1) at graphicsitems/qdeclarativerepeater.cpp:386
#64 0xb6cc88d2 in qt_static_metacall (_a=0xbf87d724, _id=5, _o=0xa34f988, _c=<optimized out>) at .moc/release-shared/moc_qdeclarativerepeater_p.cpp:105
#65 QDeclarativeRepeater::qt_static_metacall (_o=0xa34f988, _c=QMetaObject::InvokeMetaMethod, _id=5, _a=0xbf87d724) at .moc/release-shared/moc_qdeclarativerepeater_p.cpp:94
#66 0xb5f90b56 in QMetaObject::activate (sender=sender@entry=0xa34ff00, m=m@entry=0xb6db6900 <QDeclarativeVisualModel::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0xbf87d724) at kernel/qobject.cpp:3539
#67 0xb6ccc79d in QDeclarativeVisualModel::itemsInserted (this=0xa34ff00, _t1=0, _t2=1) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:154
#68 0xb6b81fa8 in QDeclarativeVisualDataModel::_q_itemsInserted (this=0xa34ff00, index=0, count=1) at graphicsitems/qdeclarativevisualitemmodel.cpp:1282
#69 0xb6ccce9e in QDeclarativeVisualDataModel::qt_static_metacall (_o=0xa34ff00, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf87d8c4) at .moc/release-shared/moc_qdeclarativevisualitemmodel_p.cpp:400
#70 0xb5f90b56 in QMetaObject::activate (sender=sender@entry=0x9f7bd98, m=m@entry=0xb6db3e48 <QListModelInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0xbf87d8c4) at kernel/qobject.cpp:3539
#71 0xb6cbc8ed in QListModelInterface::itemsInserted (this=this@entry=0x9f7bd98, _t1=_t1@entry=0, _t2=_t2@entry=1) at .moc/release-shared/moc_qlistmodelinterface_p.cpp:107
#72 0xb6ade1bb in QDeclarativeListModel::insert (this=this@entry=0x9f7bd98, index=0, valuemap=...) at util/qdeclarativelistmodel.cpp:436
#73 0xb6cbad0c in QDeclarativeListModel::qt_static_metacall (_o=_o@entry=0x9f7bd98, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=4, _a=_a@entry=0xbf87daa0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:78
#74 0xb6cbaf44 in QDeclarativeListModel::qt_metacall (this=0x9f7bd98, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf87daa0) at .moc/release-shared/moc_qdeclarativelistmodel_p.cpp:123
#75 0xb5f81a55 in metacall (argv=0xbf87daa0, idx=12, cl=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#76 QMetaObject::metacall (object=0x9f7bd98, cl=QMetaObject::InvokeMetaMethod, idx=12, argv=0xbf87daa0) at kernel/qmetaobject.cpp:240
#77 0xb6c5d3ab in QDeclarativeObjectMethodScriptClass::callMethod (this=0x9b3a568, object=0x9f7bd98, index=12, returnType=-1081615620, argCount=2, argTypes=0xbf87dc34, ctxt=0xa1ce0208) at qml/qdeclarativeobjectscriptclass.cpp:970
#78 0xb6c5f001 in QDeclarativeObjectMethodScriptClass::callPrecise (this=0x9b3a568, object=0x9f7bd98, data=..., ctxt=0xa1ce0208) at qml/qdeclarativeobjectscriptclass.cpp:944
#79 0xb6c5f922 in QDeclarativeObjectMethodScriptClass::call (this=0x9b3a568, o=0xacf2960, ctxt=0xa1ce0208) at qml/qdeclarativeobjectscriptclass.cpp:917
#80 0xb30004b3 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#81 0xb2ee9171 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#82 0xb2ec26f7 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#83 0xaa0fd0c5 in ?? ()
#84 0xb2e7e01d in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#85 0xb2f17053 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#86 0xb2ee91d1 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#87 0xb2fdd2cb in QScriptValue::call(QScriptValue const&, QList<QScriptValue> const&) () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#88 0xb6bbcbb2 in QDeclarativeQtScriptExpression::eval (this=0x9f7beec, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:518
#89 0xb6bbf282 in QDeclarativeQtScriptExpression::scriptValue (this=0x9f7beec, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:470
#90 0xb6bbf577 in QDeclarativeExpressionPrivate::scriptValue (this=0x9f7beec, secondaryScope=0xb30005e0, isUndefined=0xb30005e0) at qml/qdeclarativeexpression.cpp:653
#91 0xb6bbf6e4 in QDeclarativeExpressionPrivate::value (this=0x9f7bea0, secondaryScope=0x98dbf48, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:667
#92 0xb6bfafcc in QDeclarativeBoundSignal::qt_metacall (this=0x9f7c420, c=QMetaObject::InvokeMetaMethod, id=5, a=0xbf87e2f4) at qml/qdeclarativeboundsignal.cpp:199
#93 0xb5f81a55 in metacall (argv=argv@entry=0xbf87e2f4, idx=idx@entry=5, cl=cl@entry=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#94 QMetaObject::metacall (object=object@entry=0x9f7c420, cl=cl@entry=QMetaObject::InvokeMetaMethod, idx=idx@entry=5, argv=argv@entry=0xbf87e2f4) at kernel/qmetaobject.cpp:240
#95 0xb5f90d72 in QMetaObject::activate (sender=sender@entry=0x9f7cb88, m=m@entry=0xaaebe6f8 <Plasma::DataSource::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0xbf87e2f4) at kernel/qobject.cpp:3558
#96 0xaaea3bad in Plasma::DataSource::newData (this=this@entry=0x9f7cb88, _t1=..., _t2=...) at ./datasource.moc:204
#97 0xaaea4102 in Plasma::DataSource::dataUpdated (this=0x9f7cb88, sourceName=..., data=...) at ../../../../plasma/declarativeimports/core/datasource.cpp:146
#98 0xb5f837ad in QMetaMethod::invoke (this=0xbf87e574, object=0x9f7cb88, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#99 0xb5f85e29 in QMetaObject::invokeMethod (obj=obj@entry=0x9f7cb88, member=member@entry=0xb74359d6 "dataUpdated", type=type@entry=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#100 0xb72ac9ca in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., member=0xb74359d6 "dataUpdated", obj=0x9f7cb88) at /usr/include/qt4/QtCore/qobjectdefs.h:434
#101 Plasma::DataEnginePrivate::connectSource (this=0xa2e5088, s=0xa8ac638, visualization=visualization@entry=0x9f7cb88, pollingInterval=<optimized out>, pollingInterval@entry=0, align=align@entry=Plasma::NoAlignment, immediateCall=<optimized out>) at ../../plasma/dataengine.cpp:674
#102 0xb72ae014 in Plasma::DataEngine::connectSource (this=0x9f7e7d0, source=..., visualization=visualization@entry=0x9f7cb88, pollingInterval=0, intervalAlignment=intervalAlignment@entry=Plasma::NoAlignment) at ../../plasma/dataengine.cpp:106
#103 0xaaea3ec1 in Plasma::DataSource::connectSource (this=0x9f7cb88, source=...) at ../../../../plasma/declarativeimports/core/datasource.cpp:193
#104 0xaaea513c in Plasma::DataSource::qt_metacall (this=0x9f7cb88, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbf87ea60) at ./datasource.moc:158
#105 0xb5f81a55 in metacall (argv=0xbf87ea60, idx=18, cl=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#106 QMetaObject::metacall (object=0x9f7cb88, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0xbf87ea60) at kernel/qmetaobject.cpp:240
#107 0xb6c5d3ab in QDeclarativeObjectMethodScriptClass::callMethod (this=0x9b3a568, object=0x9f7cb88, index=18, returnType=-1081611608, argCount=1, argTypes=0xbf87ebf4, ctxt=0xa1ce00a0) at qml/qdeclarativeobjectscriptclass.cpp:970
#108 0xb6c5f001 in QDeclarativeObjectMethodScriptClass::callPrecise (this=0x9b3a568, object=0x9f7cb88, data=..., ctxt=0xa1ce00a0) at qml/qdeclarativeobjectscriptclass.cpp:944
#109 0xb6c5f922 in QDeclarativeObjectMethodScriptClass::call (this=0x9b3a568, o=0xaaea0c8, ctxt=0xa1ce00a0) at qml/qdeclarativeobjectscriptclass.cpp:917
#110 0xb30004b3 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#111 0xb2ee9171 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#112 0xb2ec26f7 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#113 0xaa3e2a39 in ?? ()
#114 0xb2e7e01d in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#115 0xb2f17053 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#116 0xb2ee91d1 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#117 0xb2fdd2cb in QScriptValue::call(QScriptValue const&, QList<QScriptValue> const&) () from /usr/lib/i386-linux-gnu/libQtScript.so.4
#118 0xb6bbcbb2 in QDeclarativeQtScriptExpression::eval (this=0x9b69fb4, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:518
#119 0xb6bbf282 in QDeclarativeQtScriptExpression::scriptValue (this=0x9b69fb4, secondaryScope=0xb30005e0, isUndefined=0x0) at qml/qdeclarativeexpression.cpp:470
#120 0xb6bbf577 in QDeclarativeExpressionPrivate::scriptValue (this=0x9b69fb4, secondaryScope=0xb30005e0, isUndefined=0xb30005e0) at qml/qdeclarativeexpression.cpp:653
#121 0xb6bbf6e4 in QDeclarativeExpressionPrivate::value (this=0x9b69f68, secondaryScope=0x9b71738, isUndefined=isUndefined@entry=0x0) at qml/qdeclarativeexpression.cpp:667
#122 0xb6bfafcc in QDeclarativeBoundSignal::qt_metacall (this=0x9f3a9a8, c=QMetaObject::InvokeMetaMethod, id=5, a=0xbf87f2b8) at qml/qdeclarativeboundsignal.cpp:199
#123 0xb5f81a55 in metacall (argv=argv@entry=0xbf87f2b8, idx=idx@entry=5, cl=cl@entry=QMetaObject::InvokeMetaMethod, object=0x8f7ae10) at kernel/qmetaobject.cpp:245
#124 QMetaObject::metacall (object=object@entry=0x9f3a9a8, cl=cl@entry=QMetaObject::InvokeMetaMethod, idx=idx@entry=5, argv=argv@entry=0xbf87f2b8) at kernel/qmetaobject.cpp:240
#125 0xb5f90d72 in QMetaObject::activate (sender=sender@entry=0x9f7cb88, m=m@entry=0xaaebe6f8 <Plasma::DataSource::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0xbf87f2b8) at kernel/qobject.cpp:3558
#126 0xaaea3c05 in Plasma::DataSource::sourceAdded (this=0x9f7cb88, _t1=...) at ./datasource.moc:211
#127 0xb5f8cb4a in QMetaCallEvent::placeMetaCall (this=0xa550288, object=0x9f7cb88) at kernel/qobject.cpp:524
#128 0xb5f9648b in QObject::event (this=0x9f7cb88, e=0xa550288) at kernel/qobject.cpp:1194
#129 0xb5468c7c in QApplicationPrivate::notify_helper (this=0x8f209b8, receiver=0x9f7cb88, e=0xa550288) at kernel/qapplication.cpp:4567
#130 0xb546bb94 in QApplication::notify (this=0xa550288, receiver=0x9f7cb88, e=0xa550288) at kernel/qapplication.cpp:3949
#131 0xb6613d01 in KApplication::notify (this=0x8eec798, receiver=0x9f7cb88, event=0xa550288) at ../../kdeui/kernel/kapplication.cpp:311
#132 0xb5f7a90e in QCoreApplication::notifyInternal (this=0x8eec798, receiver=0x9f7cb88, event=0xa550288) at kernel/qcoreapplication.cpp:946
#133 0xb5f7e721 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#134 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8e56130) at kernel/qcoreapplication.cpp:1570
#135 0xb5f7ea8c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#136 0xb5facaa4 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#137 postEventSourceDispatch (s=0x8f29590) at kernel/qeventdispatcher_glib.cpp:279
#138 0xb1e713b3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#139 0xb1e71750 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#140 0xb1e71831 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#141 0xb5facc21 in QEventDispatcherGlib::processEvents (this=this@entry=0x8e56ea0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#142 0xb551fa5a in QGuiEventDispatcherGlib::processEvents (this=0x8e56ea0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#143 0xb5f793ec in QEventLoop::processEvents (this=this@entry=0xbf87f9f8, flags=...) at kernel/qeventloop.cpp:149
#144 0xb5f796e1 in QEventLoop::exec (this=this@entry=0xbf87f9f8, flags=...) at kernel/qeventloop.cpp:204
#145 0xb5f7f3fa in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#146 0xb5466fc4 in QApplication::exec () at kernel/qapplication.cpp:3828
#147 0xb76c7e32 in kdemain (argc=1, argv=0xbf87fbb4) at ../../../../plasma/desktop/shell/main.cpp:126
#148 0x0804855b in main (argc=1, argv=0xbf87fbb4) at plasma-desktop_dummy.cpp:3

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