.
Thread 3 (process 3824):
#0  0x00007f30ee8582e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f30f1e74939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f30f56304cc in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007f30f1e73952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f30ee8543ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f30f13d0fcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 2 (process 3825):
#0  0x00007f30ee8582e9 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007f30f1e74939 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#2  0x00007f30d8743d4e in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so
#3  0x00007f30f1e73952 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f30ee8543ba in start_thread () from /lib/libpthread.so.0
#5  0x00007f30f13d0fcd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 1 (process 3823):
#0  0x00007f30f4dd3cb9 in KPixmapCache::Private::mmapFile ()
   from /usr/lib/libkdeui.so.5
#1  0x00007f30f4dd547e in KPixmapCache::Private::mmapFiles ()
   from /usr/lib/libkdeui.so.5
#2  0x00007f30f4dd4837 in KPixmapCache::recreateCacheFiles ()
   from /usr/lib/libkdeui.so.5
#3  0x00007f30f4dd4c09 in KPixmapCache::Private::checkFileVersion ()
   from /usr/lib/libkdeui.so.5
#4  0x00007f30f4dd5150 in KPixmapCache::Private::init ()
   from /usr/lib/libkdeui.so.5
#5  0x00007f30f4dd88b5 in KPixmapCache::find () from /usr/lib/libkdeui.so.5
#6  0x00007f30f6398874 in Plasma::Theme::findInCache ()
   from /usr/lib/libplasma.so.3
#7  0x00007f30f6367f6d in ?? () from /usr/lib/libplasma.so.3
#8  0x00007f30f6369f1c in Plasma::FrameSvg::mask ()
   from /usr/lib/libplasma.so.3
#9  0x00007f30da9e10d6 in ?? () from /usr/lib/kde4/plasma_containment_panel.so
#10 0x00007f30f6332c48 in Plasma::Applet::paint ()
   from /usr/lib/libplasma.so.3
#11 0x00007f30f2c88d15 in ?? () from /usr/lib/libQtGui.so.4
#12 0x00007f30f2c8a408 in ?? () from /usr/lib/libQtGui.so.4
#13 0x00007f30f2c8c51e in QGraphicsScene::drawItems ()
   from /usr/lib/libQtGui.so.4
#14 0x00007f30f2cae260 in QGraphicsView::paintEvent ()
   from /usr/lib/libQtGui.so.4
#15 0x00007f30f66c4a96 in ?? () from /usr/lib/libkdeinit4_plasma.so
#16 0x00007f30f26f26e6 in QWidget::event () from /usr/lib/libQtGui.so.4
#17 0x00007f30f2a8c40b in QFrame::event () from /usr/lib/libQtGui.so.4
#18 0x00007f30f2ca8d1b in QGraphicsView::viewportEvent ()
   from /usr/lib/libQtGui.so.4
#19 0x00007f30f1f5ba68 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#20 0x00007f30f26a175c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#21 0x00007f30f26a997a in QApplication::notify () from /usr/lib/libQtGui.so.4
#22 0x00007f30f4d5e26b in KApplication::notify () from /usr/lib/libkdeui.so.5
#23 0x00007f30f1f5c75c in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#24 0x00007f30f26f99a5 in QWidgetPrivate::drawWidget ()
   from /usr/lib/libQtGui.so.4
#25 0x00007f30f26fa117 in QWidgetPrivate::paintSiblingsRecursive ()
   from /usr/lib/libQtGui.so.4
#26 0x00007f30f26fa026 in QWidgetPrivate::paintSiblingsRecursive ()
   from /usr/lib/libQtGui.so.4
#27 0x00007f30f26fa026 in QWidgetPrivate::paintSiblingsRecursive ()
   from /usr/lib/libQtGui.so.4
#28 0x00007f30f26f9617 in QWidgetPrivate::drawWidget ()
   from /usr/lib/libQtGui.so.4
#29 0x00007f30f289d362 in ?? () from /usr/lib/libQtGui.so.4
#30 0x00007f30f26eb050 in QWidgetPrivate::syncBackingStore ()
   from /usr/lib/libQtGui.so.4
#31 0x00007f30f26f257d in QWidget::event () from /usr/lib/libQtGui.so.4
#32 0x00007f30f2a8c40b in QFrame::event () from /usr/lib/libQtGui.so.4
#33 0x00007f30f2b1d949 in QAbstractScrollArea::event ()
   from /usr/lib/libQtGui.so.4
#34 0x00007f30f66c4390 in ?? () from /usr/lib/libkdeinit4_plasma.so
#35 0x00007f30f26a178d in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#36 0x00007f30f26a997a in QApplication::notify () from /usr/lib/libQtGui.so.4
#37 0x00007f30f4d5e26b in KApplication::notify () from /usr/lib/libkdeui.so.5
#38 0x00007f30f1f5c75c in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#39 0x00007f30f1f5d3ca in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#40 0x00007f30f1f861e3 in ?? () from /usr/lib/libQtCore.so.4
#41 0x00007f30ecc2420a in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#42 0x00007f30ecc278e0 in ?? () from /usr/lib/libglib-2.0.so.0
#43 0x00007f30ecc27a7c in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#44 0x00007f30f1f85e6f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#45 0x00007f30f2739bef in ?? () from /usr/lib/libQtGui.so.4
#46 0x00007f30f1f5b002 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#47 0x00007f30f1f5b3cd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#48 0x00007f30f1f5d694 in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#49 0x00007f30f66bd9bb in kdemain () from /usr/lib/libkdeinit4_plasma.so
#50 0x00007f30f13095a6 in __libc_start_main () from /lib/libc.so.6
#51 0x00000000004007c9 in _start ()