Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-22-generic x86_64
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
Every so often plasma-desktop begins to hog the cpu, causing my laptop to overheat. 

To get it to cool off again I run [killall plasma-desktop] in krunner, then if it doesn't restart itself, I'll run [plasma-desktop]. What usually happens is expected: plasma-desktop is killed. Though sometimes it will continue to run for awhile (10 - 120 seconds, rarely more but it has happened). It seems closing an app or two will get it to die. I haven't found any application correlations yet except that it isn't any one app in particular.

In regards to why plasma-desktop begins to hog the cpu after awhile, I haven't a clue, though it's a different bug report.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f41aa47f7a0 (LWP 25035))]

Thread 4 (Thread 0x7f417cdc8710 (LWP 25037)):
#0  0x00007f41a9e92f53 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f419ff574a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f419ff578fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007f41a6712566 in QEventDispatcherGlib::processEvents (this=0x2371310, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007f41a66e7992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007f41a66e7d6c in QEventLoop::exec (this=0x7f417cdc7d70, flags=) at kernel/qeventloop.cpp:201
#6  0x00007f41a65f1d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007f41a66c8178 in QInotifyFileSystemWatcherEngine::run (this=0x2374bb0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f41a65f4775 in QThreadPrivate::start (arg=0x2374bb0) at thread/qthread_unix.cpp:248
#9  0x00007f41a63649ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007f41a9e9f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f4170742710 (LWP 25040)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f41a65f572b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x22dcb40, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x22dcb40, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f41897181d3 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#4  0x00007f418a36c030 in call_function (f=
    Frame 0x3a40630, for file /home/adam/.kde/share/apps/plasma/wallpapers/clock/contents/code/wallpaperrenderer.py, line 73, in run (self=<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ef0>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32f58>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute52.png'], method=<ResizeMethod at remote 0x2f48128>, size=<QSize at remote 0x2c328d8>) at remote 0x2f4e200>, abort=False, mutex=<QMutex at remote 0x2c1a940>, restart=False, condition=<QWaitCondition at remote 0x2c1ad50>) at remote 0x2c396b0>, job=None), throwflag=<value optimized out>) at ../Python/ceval.c:3750
#5  PyEval_EvalFrameEx (f=
    Frame 0x3a40630, for file /home/adam/.kde/share/apps/plasma/wallpapers/clock/contents/code/wallpaperrenderer.py, line 73, in run (self=<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ef0>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32f58>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute52.png'], method=<ResizeMethod at remote 0x2f48128>, size=<QSize at remote 0x2c328d8>) at remote 0x2f4e200>, abort=False, mutex=<QMutex at remote 0x2c1a940>, restart=False, condition=<QWaitCondition at remote 0x2c1ad50>) at remote 0x2c396b0>, job=None), throwflag=<value optimized out>) at ../Python/ceval.c:2412
#6  0x00007f418a36dd60 in PyEval_EvalCodeEx (co=0x2c3e918, globals=<value optimized out>, locals=<value optimized out>, args=0x1, argcount=<value optimized out>, kws=<value optimized out>, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#7  0x00007f418a2f3d60 in function_call (func=<function at remote 0x2c41758>, arg=
    (<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ef0>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32f58>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute52.png'], method=<ResizeMethod at remote 0x2f48128>, size=<QSize at remote 0x2c328d8>) at remote 0x2f4e200>, abort=False, mutex=<QMutex at remote 0x2c1a940>, restart=False, condition=<QWaitCondition at remote 0x2c1ad50>) at remote 0x2c396b0>,), kw=0x0) at ../Objects/funcobject.c:524
#8  0x00007f418a2c62e3 in PyObject_Call (func=<function at remote 0x2c41758>, arg=<unknown at remote 0x80>, kw=<unknown at remote 0x69>) at ../Objects/abstract.c:2492
#9  0x00007f418a2d7cef in instancemethod_call (func=<function at remote 0x2c41758>, arg=
    (<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ef0>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32f58>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute52.png'], method=<ResizeMethod at remote 0x2f48128>, size=<QSize at remote 0x2c328d8>) at remote 0x2f4e200>, abort=False, mutex=<QMutex at remote 0x2c1a940>, restart=False, condition=<QWaitCondition at remote 0x2c1ad50>) at remote 0x2c396b0>,), kw=0x0) at ../Objects/classobject.c:2579
#10 0x00007f418a2c62e3 in PyObject_Call (func=<instancemethod at remote 0x1720870>, arg=<unknown at remote 0x80>, kw=<unknown at remote 0x69>) at ../Objects/abstract.c:2492
#11 0x00007f418a366193 in PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x1720870>, arg=(), kw=<unknown at remote 0x69>) at ../Python/ceval.c:3619
#12 0x00007f418945fd3b in ?? () from /usr/lib/pymodules/python2.6/sip.so
#13 0x00007f4189707468 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#14 0x00007f4189737630 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#15 0x00007f41a65f4775 in QThreadPrivate::start (arg=0x2ef94f0) at thread/qthread_unix.cpp:248
#16 0x00007f41a63649ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#17 0x00007f41a9e9f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f417e587710 (LWP 25046)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f41a65f572b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x4a14860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x4a14860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f41897181d3 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#4  0x00007f418a36c030 in call_function (f=
    Frame 0x3a40810, for file /home/adam/.kde/share/apps/plasma/wallpapers/clock/contents/code/wallpaperrenderer.py, line 73, in run (self=<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ce8>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32c18>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute5.png'], method=<ResizeMethod at remote 0x2f4e0e0>, size=<QSize at remote 0x2c32c80>) at remote 0x2f5b878>, abort=False, mutex=<QMutex at remote 0x2c1ace8>, restart=False, condition=<QWaitCondition at remote 0x2c32db8>) at remote 0x2c39af0>, job=None), throwflag=<value optimized out>) at ../Python/ceval.c:3750
#5  PyEval_EvalFrameEx (f=
    Frame 0x3a40810, for file /home/adam/.kde/share/apps/plasma/wallpapers/clock/contents/code/wallpaperrenderer.py, line 73, in run (self=<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ce8>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32c18>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute5.png'], method=<ResizeMethod at remote 0x2f4e0e0>, size=<QSize at remote 0x2c32c80>) at remote 0x2f5b878>, abort=False, mutex=<QMutex at remote 0x2c1ace8>, restart=False, condition=<QWaitCondition at remote 0x2c32db8>) at remote 0x2c39af0>, job=None), throwflag=<value optimized out>) at ../Python/ceval.c:2412
#6  0x00007f418a36dd60 in PyEval_EvalCodeEx (co=0x2c3e918, globals=<value optimized out>, locals=<value optimized out>, args=0x1, argcount=<value optimized out>, kws=<value optimized out>, 
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:3000
#7  0x00007f418a2f3d60 in function_call (func=<function at remote 0x2c41758>, arg=
    (<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ce8>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32c18>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute5.png'], method=<ResizeMethod at remote 0x2f4e0e0>, size=<QSize at remote 0x2c32c80>) at remote 0x2f5b878>, abort=False, mutex=<QMutex at remote 0x2c1ace8>, restart=False, condition=<QWaitCondition at remote 0x2c32db8>) at remote 0x2c39af0>,), kw=0x0) at ../Objects/funcobject.c:524
#8  0x00007f418a2c62e3 in PyObject_Call (func=<function at remote 0x2c41758>, arg=<unknown at remote 0x80>, kw=<unknown at remote 0x5>) at ../Objects/abstract.c:2492
#9  0x00007f418a2d7cef in instancemethod_call (func=<function at remote 0x2c41758>, arg=
    (<WallpaperRenderer(job=<StackJob(color=<QColor at remote 0x2c32ce8>, renderThread=None, jobId=1, images=[<QImage at remote 0x2c32c18>, u'/home/adam/.kde/share/apps/plasma/clockwallpapers/plasma-desktophQ1691/minute5.png'], method=<ResizeMethod at remote 0x2f4e0e0>, size=<QSize at remote 0x2c32c80>) at remote 0x2f5b878>, abort=False, mutex=<QMutex at remote 0x2c1ace8>, restart=False, condition=<QWaitCondition at remote 0x2c32db8>) at remote 0x2c39af0>,), kw=0x0) at ../Objects/classobject.c:2579
#10 0x00007f418a2c62e3 in PyObject_Call (func=<instancemethod at remote 0x16ffcd0>, arg=<unknown at remote 0x80>, kw=<unknown at remote 0x5>) at ../Objects/abstract.c:2492
#11 0x00007f418a366193 in PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x16ffcd0>, arg=(), kw=<unknown at remote 0x5>) at ../Python/ceval.c:3619
#12 0x00007f418945fd3b in ?? () from /usr/lib/pymodules/python2.6/sip.so
#13 0x00007f4189707468 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#14 0x00007f4189737630 in ?? () from /usr/lib/pymodules/python2.6/PyQt4/QtCore.so
#15 0x00007f41a65f4775 in QThreadPrivate::start (arg=0x4a17840) at thread/qthread_unix.cpp:248
#16 0x00007f41a63649ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#17 0x00007f41a9e9f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f41aa47f7a0 (LWP 25035)):
[KCrash Handler]
#5  0x00007f41847f619d in jump_tag_but_local_jump (state=6, val=4) at eval.c:1853
#6  0x00007f41847f3272 in rb_call0 (klass=0, recv=0, id=0, oid=<value optimized out>, argc=0, argv=0x0, body=0x1e70be8, flags=0) at eval.c:6107
#7  0x00007f41847f3853 in rb_call (klass=31164000, recv=31165760, mid=13321, argc=1, argv=0x7fff62f786a0, scope=1, self=6) at eval.c:6176
#8  0x00007f41847f4508 in vafuncall (recv=<value optimized out>, mid=<value optimized out>, n=1, ar=<value optimized out>) at eval.c:6253
#9  0x00007f41847f47b5 in rb_funcall (recv=6, mid=4, n=-2069133832) at eval.c:6270
#10 0x00007f4184130d69 in set_obj_info (className=0x1fd10f8 "Qt::Painter", o=<value optimized out>) at ../../../../ruby/qtruby/src/Qt.cpp:1117
#11 0x00007f418415424b in marshall_to_ruby<SmokeClassWrapper> (m=0x7fff62f78b40) at ../../../../ruby/qtruby/src/marshall_basetypes.h:159
#12 marshall_it<SmokeClassWrapper> (m=0x7fff62f78b40) at ../../../../ruby/qtruby/src/handlers.cpp:812
#13 marshall_basetype (m=0x7fff62f78b40) at ../../../../ruby/qtruby/src/handlers.cpp:875
#14 0x00007f418416674e in QtRuby::MethodCallBase::next (this=0x7fff62f78b40) at ../../../../ruby/qtruby/src/marshall_types.cpp:463
#15 0x00007f4184131d65 in QtRuby::Binding::callMethod (this=<value optimized out>, method=<value optimized out>, ptr=<value optimized out>, args=<value optimized out>)
    at ../../../../ruby/qtruby/src/Qt.cpp:277
#16 0x00007f4183e7434b in __smokeplasma::x_Plasma__AppletScript::paintInterface (this=0x2042870, x1=0x7fff62f790f0, x2=0xfbe4a8, x3=...) at x_2.cpp:235
#17 0x00007f41a99cc30f in Plasma::Applet::paint (this=0x1db05f0, painter=0x7fff62f790f0, option=0xfbe4a8, widget=0x0) at ../../plasma/applet.cpp:1372
#18 0x00007f41a744181a in _q_paintItem (item=<value optimized out>, painter=0x7fff62f790f0, option=0xfbe4a8, widget=0x0, useWindowOpacity=<value optimized out>, 
    painterStateProtection=<value optimized out>) at graphicsview/qgraphicsscene.cpp:4243
#19 0x00007f41a7441aac in _q_paintIntoCache (pix=0x7fff62f79780, item=<value optimized out>, pixmapExposed=..., itemToPixmap=<value optimized out>, renderHints=)
    at graphicsview/qgraphicsscene.cpp:4281
#20 0x00007f41a7455d33 in QGraphicsScenePrivate::drawItemHelper (this=<value optimized out>, item=0x1db0600, painter=0x7fff62f7aa70, option=0xfbe4a8, widget=<value optimized out>, 
    painterStateProtection=<value optimized out>) at graphicsview/qgraphicsscene.cpp:4574
#21 0x00007f41a7456625 in QGraphicsScenePrivate::draw (this=<value optimized out>, item=0x1db0600, painter=0x7fff62f7aa70, viewTransform=<value optimized out>, transformPtr=<value optimized out>, 
    exposedRegion=<value optimized out>, widget=0x239c180, opacity=<value optimized out>, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true)
    at graphicsview/qgraphicsscene.cpp:4827
#22 0x00007f41a7457272 in QGraphicsScenePrivate::drawSubtreeRecursive (this=<value optimized out>, item=0x1db0600, painter=0x7fff62f7aa70, viewTransform=0x0, exposedRegion=0x2cb9430, widget=
    0x239c180, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#23 0x00007f41a74566c0 in QGraphicsScenePrivate::draw (this=<value optimized out>, item=0x1cf5140, painter=0x7fff62f7aa70, viewTransform=<value optimized out>, transformPtr=<value optimized out>, 
    exposedRegion=<value optimized out>, widget=0x239c180, opacity=<value optimized out>, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true)
    at graphicsview/qgraphicsscene.cpp:4841
#24 0x00007f41a7457272 in QGraphicsScenePrivate::drawSubtreeRecursive (this=<value optimized out>, item=0x1cf5140, painter=0x7fff62f7aa70, viewTransform=0x0, exposedRegion=0x2cb9430, widget=
    0x239c180, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#25 0x00007f41a7457c34 in QGraphicsScenePrivate::drawItems (this=0xfbe250, painter=0x7fff62f7aa70, viewTransform=0x0, exposedRegion=0x2cb9430, widget=0x239c180)
    at graphicsview/qgraphicsscene.cpp:4619
#26 0x00007f41a7477465 in QGraphicsView::paintEvent (this=0x2cb1fe0, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3393
#27 0x00007f41a6e8b162 in QWidget::event (this=0x2cb1fe0, event=0x7fff62f7b3a0) at kernel/qwidget.cpp:8144
#28 0x00007f41a72324e6 in QFrame::event (this=0x2cb1fe0, e=0x7fff62f7b3a0) at widgets/qframe.cpp:557
#29 0x00007f41a7473f0b in QGraphicsView::viewportEvent (this=0x2cb1fe0, event=0x7fff62f7b3a0) at graphicsview/qgraphicsview.cpp:2787
#30 0x00007f41a66e8487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x239c180, event=0x7fff62f7b3a0) at kernel/qcoreapplication.cpp:819
#31 0x00007f41a6e351fc in QApplicationPrivate::notify_helper (this=0xfc9fd0, receiver=0x239c180, e=0x7fff62f7b3a0) at kernel/qapplication.cpp:4296
#32 0x00007f41a6e3b6fb in QApplication::notify (this=0xfb3a20, receiver=0x239c180, e=0x7fff62f7b3a0) at kernel/qapplication.cpp:4183
#33 0x00007f41a7fe1526 in KApplication::notify (this=0xfb3a20, receiver=0x239c180, event=0x7fff62f7b3a0) at ../../kdeui/kernel/kapplication.cpp:302
#34 0x00007f41a66e906c in QCoreApplication::notifyInternal (this=0xfb3a20, receiver=0x239c180, event=0x7fff62f7b3a0) at kernel/qcoreapplication.cpp:704
#35 0x00007f41a6e937dd in QCoreApplication::sendSpontaneousEvent (this=0x239c240, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x2cbd320) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#36 QWidgetPrivate::drawWidget (this=0x239c240, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, backingStore=0x2cbd320)
    at kernel/qwidget.cpp:5339
#37 0x00007f41a704d866 in QWidgetBackingStore::sync (this=0x2cbd320) at painting/qbackingstore.cpp:1283
#38 0x00007f41a6e84b60 in QWidgetPrivate::syncBackingStore (this=0x2cb8f70) at kernel/qwidget.cpp:1672
#39 0x00007f41a6e8b865 in QWidget::event (this=0x2cb1fe0, event=0x39aed20) at kernel/qwidget.cpp:8291
#40 0x00007f41a72324e6 in QFrame::event (this=0x2cb1fe0, e=0x39aed20) at widgets/qframe.cpp:557
#41 0x00007f41a72bd8ab in QAbstractScrollArea::event (this=0x2cb1fe0, e=0x39aed20) at widgets/qabstractscrollarea.cpp:989
#42 0x00007f41a6e3522c in QApplicationPrivate::notify_helper (this=0xfc9fd0, receiver=0x2cb1fe0, e=0x39aed20) at kernel/qapplication.cpp:4300
#43 0x00007f41a6e3b6fb in QApplication::notify (this=0xfb3a20, receiver=0x2cb1fe0, e=0x39aed20) at kernel/qapplication.cpp:4183
#44 0x00007f41a7fe1526 in KApplication::notify (this=0xfb3a20, receiver=0x2cb1fe0, event=0x39aed20) at ../../kdeui/kernel/kapplication.cpp:302
#45 0x00007f41a66e906c in QCoreApplication::notifyInternal (this=0xfb3a20, receiver=0x2cb1fe0, event=0x39aed20) at kernel/qcoreapplication.cpp:704
#46 0x00007f41a66eb7e7 in QCoreApplication::sendEvent (receiver=0x2cb1fe0, event_type=<value optimized out>, data=0xf99cf0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#47 QCoreApplicationPrivate::sendPostedEvents (receiver=0x2cb1fe0, event_type=<value optimized out>, data=0xf99cf0) at kernel/qcoreapplication.cpp:1345
#48 0x00007f41a745eb7a in QGraphicsViewPrivate::dispatchPendingUpdateRequests (this=0xfbe250) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:184
#49 QGraphicsScenePrivate::_q_processDirtyItems (this=0xfbe250) at graphicsview/qgraphicsscene.cpp:509
#50 0x00007f41a745f102 in QGraphicsScene::qt_metacall (this=0x10e9ae0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x22a3350) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#51 0x00007f41a99f4b65 in Plasma::Corona::qt_metacall (this=0x6, _c=QMetaObject::QueryPropertyDesignable, _id=-2069133832, _a=0x7fff62f780c8) at ./corona.moc:107
#52 0x00007f41aa16fbd3 in DesktopCorona::qt_metacall (this=0x6, _c=QMetaObject::QueryPropertyDesignable, _id=-2069133832, _a=0x7fff62f780c8) at ./desktopcorona.moc:86
#53 0x00007f41a66f8d49 in QObject::event (this=0x10e9ae0, e=0x3a9a580) at kernel/qobject.cpp:1248
#54 0x00007f41a745ad80 in QGraphicsScene::event (this=0x10e9ae0, event=0x3a9a580) at graphicsview/qgraphicsscene.cpp:3500
#55 0x00007f41a6e3522c in QApplicationPrivate::notify_helper (this=0xfc9fd0, receiver=0x10e9ae0, e=0x3a9a580) at kernel/qapplication.cpp:4300
#56 0x00007f41a6e3b6fb in QApplication::notify (this=0xfb3a20, receiver=0x10e9ae0, e=0x3a9a580) at kernel/qapplication.cpp:4183
#57 0x00007f41a7fe1526 in KApplication::notify (this=0xfb3a20, receiver=0x10e9ae0, event=0x3a9a580) at ../../kdeui/kernel/kapplication.cpp:302
#58 0x00007f41a66e906c in QCoreApplication::notifyInternal (this=0xfb3a20, receiver=0x10e9ae0, event=0x3a9a580) at kernel/qcoreapplication.cpp:704
#59 0x00007f41a66eb7e7 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0xf99cf0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#60 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0xf99cf0) at kernel/qcoreapplication.cpp:1345
#61 0x00007f41a67129d3 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#62 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#63 0x00007f419ff538c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#64 0x00007f419ff57748 in ?? () from /lib/libglib-2.0.so.0
#65 0x00007f419ff578fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#66 0x00007f41a6712513 in QEventDispatcherGlib::processEvents (this=0xf99440, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#67 0x00007f41a6ee546e in QGuiEventDispatcherGlib::processEvents (this=0x6, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#68 0x00007f41a66e7992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#69 0x00007f41a66e7d6c in QEventLoop::exec (this=0x7fff62f7d000, flags=) at kernel/qeventloop.cpp:201
#70 0x00007f41a66ebaab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#71 0x00007f41aa176fb2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:112
#72 0x00007f41a9dd7c4d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fff62f7d388) at libc-start.c:226
#73 0x00000000004006c9 in _start ()

Reported using DrKonqi