Version:            (using KDE 4.3.0)
Installed from:    Gentoo Packages

I don't know if it same bug than other repported:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 9579)]

Thread 2 (Thread 0x7ff6f10fc910 (LWP 9582)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007ff70f63dc39 in QWaitCondition::wait (this=0x2090340, mutex=0x2090338, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007ff70e2585e4 in QHostInfoAgent::run (this=0x2090320) at kernel/qhostinfo.cpp:260
#3  0x00007ff70f63ce24 in QThreadPrivate::start (arg=0x2090320) at thread/qthread_unix.cpp:188
#4  0x00007ff70f3ca2f7 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007ff70bf299cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff70fbdb740 (LWP 9579)):
[KCrash Handler]
#5  0x0000000000000000 in ?? ()
#6  0x00007ff70cc9d784 in blend_src_generic<RegularSpans> (count=139, spans=0x7fffd07d4040, userData=<value optimized out>) at painting/qdrawhelper.cpp:3388
#7  0x00007ff70cc9eaae in blend_transformed_tiled_argb<RegularSpans> (count=-797123088, spans=0x7fffd07d1df0, userData=0x59d4040) at painting/qdrawhelper.cpp:6343
#8  0x00007ff70cc55a76 in QRasterizer::rasterize (this=0x26aa240, path=@0x7fffd07d49a0, fillRule=<value optimized out>) at painting/qrasterizer.cpp:105
#9  0x00007ff70cc7d827 in QRasterPaintEngine::fillPath (this=0x5a4a5b0, path=@0x7fffd07d4fd0, fillData=0x59d4040) at painting/qpaintengine_raster.cpp:1398
#10 0x00007ff70cc87b61 in QRasterPaintEngine::drawPath (this=0x5a4a5b0, path=@0x7fffd07d4fd0) at painting/qpaintengine_raster.cpp:1933
#11 0x00007ff70cc14f27 in QPainterPrivate::draw_helper (this=0x5c67c90, originalPath=@0x7fffd07d4fd0, op=<value optimized out>) at painting/qpainter.cpp:451
#12 0x00007ff70cc17d06 in QPainter::drawRects (this=<value optimized out>, rects=<value optimized out>, rectCount=1) at painting/qpainter.cpp:3355
#13 0x00007ff70cc19e8f in QPainter::drawPixmap (this=0x7fffd07d52d0, r=<value optimized out>, pm=@0x249ef58, sr=<value optimized out>) at ../../include/QtGui/../../src/gui/painting/qpainter.h:604
#14 0x00007ff706cac4e0 in Plasma::FrameSvg::paintFrame (this=0x249dcc0, painter=0x7fffd07d52d0, target=@0x7fffd07d52b0, source=@0x7fffd07d5290)
    at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/framesvg.cpp:370
#15 0x00007ff706c94a1f in Plasma::Dialog::paintEvent (this=0x204e7e0, e=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/dialog.cpp:293
#16 0x00007ff70cb505e8 in QWidget::event (this=0x204e7e0, event=0x7fffd07d59e0) at kernel/qwidget.cpp:7687
#17 0x00007ff706c94762 in Plasma::Dialog::event (this=0x204e7e0, event=0x7fffd07d59e0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/dialog.cpp:397
#18 0x00007ff70cafb8dd in QApplicationPrivate::notify_helper (this=0x1b3f030, receiver=0x204e7e0, e=0x7fffd07d59e0) at kernel/qapplication.cpp:4056
#19 0x00007ff70cb0451a in QApplication::notify (this=0x1b358c0, receiver=0x204e7e0, e=0x7fffd07d59e0) at kernel/qapplication.cpp:4021
#20 0x00007ff70db7caea in KApplication::notify (this=0x1b358c0, receiver=0x204e7e0, event=0x7fffd07d59e0)
    at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#21 0x00007ff70f71e22b in QCoreApplication::notifyInternal (this=0x1b358c0, receiver=0x204e7e0, event=0x7fffd07d59e0) at kernel/qcoreapplication.cpp:606
#22 0x00007ff70cb53407 in QWidgetPrivate::drawWidget (this=0x24cfd80, pdev=0x20a85d8, rgn=@0x7fffd07d5e50, offset=@0x24cecc4, flags=<value optimized out>, sharedPainter=0x0, backingStore=0x24cec80)
    at kernel/qwidget.cpp:5079
#23 0x00007ff70ccc392a in QWidgetBackingStore::sync (this=0x24cec80) at painting/qbackingstore.cpp:1269
#24 0x00007ff70cb45443 in QWidgetPrivate::syncBackingStore (this=0x24cfd80) at kernel/qwidget.cpp:1603
#25 0x00007ff70cb504ed in QWidget::event (this=0x204e7e0, event=0x3e66bc0) at kernel/qwidget.cpp:7827
#26 0x00007ff706c94762 in Plasma::Dialog::event (this=0x204e7e0, event=0x3e66bc0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/dialog.cpp:397
#27 0x00007ff70cafb8dd in QApplicationPrivate::notify_helper (this=0x1b3f030, receiver=0x204e7e0, e=0x3e66bc0) at kernel/qapplication.cpp:4056
#28 0x00007ff70cb0451a in QApplication::notify (this=0x1b358c0, receiver=0x204e7e0, e=0x3e66bc0) at kernel/qapplication.cpp:4021
#29 0x00007ff70db7caea in KApplication::notify (this=0x1b358c0, receiver=0x204e7e0, event=0x3e66bc0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#30 0x00007ff70f71e22b in QCoreApplication::notifyInternal (this=0x1b358c0, receiver=0x204e7e0, event=0x3e66bc0) at kernel/qcoreapplication.cpp:606
#31 0x00007ff70f71ebef in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1ae6de0) at kernel/qcoreapplication.h:213
#32 0x00007ff70f7466d3 in postEventSourceDispatch (s=<value optimized out>) at kernel/qcoreapplication.h:218
#33 0x00007ff70b584739 in IA__g_main_context_dispatch (context=0x1b41840) at gmain.c:2144
#34 0x00007ff70b5880ad in g_main_context_iterate (context=0x1b41840, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2778
#35 0x00007ff70b58825d in IA__g_main_context_iteration (context=0x1b41840, may_block=1) at gmain.c:2841
#36 0x00007ff70f7462cf in QEventDispatcherGlib::processEvents (this=0x1b3edb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#37 0x00007ff70cb8bce8 in QGuiEventDispatcherGlib::processEvents (this=0x7fffd07cddf0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#38 0x00007ff70f71c832 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -797087712}) at kernel/qeventloop.cpp:149
#39 0x00007ff70f71ca1c in QEventLoop::exec (this=0x7fffd07d6860, flags={i = -797087632}) at kernel/qeventloop.cpp:197
#40 0x00007ff70f71ee5c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0x00007ff7033dc2fb in kdemain (argc=1, argv=0x1ae96b0) at /var/tmp/portage/kde-base/plasma-workspace-4.3.0/work/plasma-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#42 0x000000000040792e in launch (argc=1, _name=0x1b21908 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x1b21928 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a823 "0") at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:676
#43 0x00000000004080db in handle_launcher_request (sock=8, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1168
#44 0x00000000004085b1 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1361
#45 0x0000000000408d22 in main (argc=2, argv=0x7fffd07d7708, envp=0x7fffd07d7720) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1788