Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

Using kde4.2 RC from kde overlay (4.1.96).

Plasma ocassionally crahses when working with taskbar.
Will try to figure out some pattern, but no more info for now.


Backrace:
Programma: Plasma darbvirsma (plasma), signāls SIGSEGV
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 0 (LWP 5059)]

Thread 3 (Thread 0xa7ebdb90 (LWP 5060)):
#0  0xb7f75424 in __kernel_vsyscall ()
#1  0xb7073576 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb710053b in QWaitCondition::wait (this=0x9479cb8, mutex=0x9479cb4, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#3  0xb798ca8d in QHostInfoAgent::run (this=0x9479ca8) at kernel/qhostinfo.cpp:247
#4  0xb70ff5ee in QThreadPrivate::start (arg=0x9479ca8) at thread/qthread_unix.cpp:191
#5  0xb706f18b in start_thread (arg=0xa7ebdb90) at pthread_create.c:296
#6  0xb645f09e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa76a5b90 (LWP 5063)):
#0  0xb7f75424 in __kernel_vsyscall ()
#1  0xb7073576 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb710053b in QWaitCondition::wait (this=0x9256200, mutex=0x92561fc, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#3  0xa94814d6 in RenderThread::run (this=0x92561f4) at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-plasma-workspace-4.1.96/work/plasma-workspace-4.1.96/plasma/wallpapers/image/renderthread.cpp:91
#4  0xb70ff5ee in QThreadPrivate::start (arg=0x92561f4) at thread/qthread_unix.cpp:191
#5  0xb706f18b in start_thread (arg=0xa76a5b90) at pthread_create.c:296
#6  0xb645f09e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb46486f0 (LWP 5059)):
[KCrash Handler]
#6  0xa90b8712 in WindowTaskItem::setAdditionalMimeData (this=0x985e790, mimeData=0x98613b0)
    at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-plasma-workspace-4.1.96/work/plasma-workspace-4.1.96/plasma/applets/tasks/windowtaskitem.cpp:309
#7  0xa90c12fc in AbstractTaskItem::mouseMoveEvent (this=0x985e790, event=0xbfd8d5c0)
    at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-plasma-workspace-4.1.96/work/plasma-workspace-4.1.96/plasma/applets/tasks/abstracttaskitem.cpp:287
#8  0xb6dda212 in QGraphicsItem::sceneEvent (this=0x985e798, event=0xbfd8d5c0) at graphicsview/qgraphicsitem.cpp:4001
#9  0xb6e1c1ef in QGraphicsWidget::sceneEvent (this=0x985e790, event=0xbfd8d5c0) at graphicsview/qgraphicswidget.cpp:1017
#10 0xb6df2d62 in QGraphicsScenePrivate::sendEvent (this=0x9142390, item=0x985e798, event=0xbfd8d5c0) at graphicsview/qgraphicsscene.cpp:1036
#11 0xb6df4190 in QGraphicsScenePrivate::sendMouseEvent (this=0x9142390, mouseEvent=0xbfd8d5c0) at graphicsview/qgraphicsscene.cpp:1107
#12 0xb6e00e04 in QGraphicsScene::mouseMoveEvent (this=0x91a1d18, mouseEvent=0xbfd8d5c0) at graphicsview/qgraphicsscene.cpp:3577
#13 0xb6e01192 in QGraphicsScene::event (this=0x91a1d18, event=0xbfd8d5c0) at graphicsview/qgraphicsscene.cpp:2966
#14 0xb6868cbf in QApplicationPrivate::notify_helper (this=0x9146410, receiver=0x91a1d18, e=0xbfd8d5c0) at kernel/qapplication.cpp:3809
#15 0xb686d669 in QApplication::notify (this=0x913a338, receiver=0x91a1d18, e=0xbfd8d5c0) at kernel/qapplication.cpp:3399
#16 0xb771ebaa in KApplication::notify (this=0x913a338, receiver=0x91a1d18, event=0xbfd8d5c0)
    at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-kdelibs-4.1.96/work/kdelibs-4.1.96/kdeui/kernel/kapplication.cpp:307
#17 0xb71ec9d6 in QCoreApplication::notifyInternal (this=0x913a338, receiver=0x91a1d18, event=0xbfd8d5c0) at kernel/qcoreapplication.cpp:593
#18 0xb6e111f9 in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x9524a08, event=0xbfd8dd70) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 0xb6e12ae4 in QGraphicsView::mouseMoveEvent (this=0x9524970, event=0xbfd8dd70) at graphicsview/qgraphicsview.cpp:2754
#20 0xb68c0ddf in QWidget::event (this=0x9524970, event=0xbfd8dd70) at kernel/qwidget.cpp:7154
#21 0xb6bf3c23 in QFrame::event (this=0x9524970, e=0xbfd8dd70) at widgets/qframe.cpp:657
#22 0xb6c88b8c in QAbstractScrollArea::viewportEvent (this=0x9862298, e=0x0) at widgets/qabstractscrollarea.cpp:949
#23 0xb6e10668 in QGraphicsView::viewportEvent (this=0x9524970, event=0xbfd8dd70) at graphicsview/qgraphicsview.cpp:2343
#24 0xb6c89fa5 in QAbstractScrollAreaFilter::eventFilter (this=0x9526040, o=0x9525808, e=0xbfd8dd70) at widgets/qabstractscrollarea_p.h:102
#25 0xb71ecdb2 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9146410, receiver=0x9525808, event=0xbfd8dd70) at kernel/qcoreapplication.cpp:700
#26 0xb6868c98 in QApplicationPrivate::notify_helper (this=0x9146410, receiver=0x9525808, e=0xbfd8dd70) at kernel/qapplication.cpp:3805
#27 0xb686d8e2 in QApplication::notify (this=0x913a338, receiver=0x9525808, e=0xbfd8dd70) at kernel/qapplication.cpp:3534
#28 0xb771ebaa in KApplication::notify (this=0x913a338, receiver=0x9525808, event=0xbfd8dd70)
    at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-kdelibs-4.1.96/work/kdelibs-4.1.96/kdeui/kernel/kapplication.cpp:307
#29 0xb71ec9d6 in QCoreApplication::notifyInternal (this=0x913a338, receiver=0x9525808, event=0xbfd8dd70) at kernel/qcoreapplication.cpp:593
#30 0xb686b428 in QApplicationPrivate::sendMouseEvent (receiver=0x9525808, event=0xbfd8dd70, alienWidget=0x9525808, nativeWidget=0x9524970, buttonDown=0xb701ac30, lastMouseReceiver=@0xb701ac34)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#31 0xb68d332e in QETWidget::translateMouseEvent (this=0x9524970, event=0xbfd8e158) at kernel/qapplication_x11.cpp:4048
#32 0xb68d1d4c in QApplication::x11ProcessEvent (this=0x913a338, event=0xbfd8e158) at kernel/qapplication_x11.cpp:3044
#33 0xb68f8101 in QEventDispatcherX11::processEvents (this=0x91448a8, flags=@0xbfd8e248) at kernel/qeventdispatcher_x11.cpp:134
#34 0xb71ebbcd in QEventLoop::processEvents (this=0xbfd8e2c0, flags=@0xbfd8e288) at kernel/qeventloop.cpp:149
#35 0xb71ebd5d in QEventLoop::exec (this=0xbfd8e2c0, flags=@0xbfd8e2c8) at kernel/qeventloop.cpp:200
#36 0xb71edec6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:851
#37 0xb68685b7 in QApplication::exec () at kernel/qapplication.cpp:3337
#38 0xb7f3aa6b in kdemain (argc=1, argv=0xbfd8e474) at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-plasma-workspace-4.1.96/work/plasma-workspace-4.1.96/plasma/shells/desktop/main.cpp:54
#39 0x08048842 in main (argc=-1221781520, argv=0x98613b0)
    at /mnt/temp/gentoo-temp/var-tmp/paludis/kde-base-plasma-workspace-4.1.96/work/plasma-workspace_build/plasma/shells/desktop/plasma_qgv_dummy.cpp:3
#40 0xb63b3fdc in __libc_start_main (main=0x8048820 <main>, argc=1, ubp_av=0xbfd8e474, init=0x8048870 <__libc_csu_init>, fini=0x8048860 <__libc_csu_fini>, rtld_fini=0xb7f84050 <_dl_fini>, 
    stack_end=0xbfd8e46c) at libc-start.c:229
#41 0x08048791 in _start ()