Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-21-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
plasma desktop crashes every time it's started since the 2010-04-20 Lucid update

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Aborted
[Current thread is 1 (Thread 0x7fac593ed7a0 (LWP 3437))]

Thread 6 (Thread 0x7fac2db77710 (LWP 3442)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
#1  0x00007fac55565692 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x20ecf10, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x20ecf10, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007fac5555aa79 in QThreadPoolThread::run (this=0x20e1940) at concurrent/qthreadpool.cpp:140
#4  0x00007fac55564775 in QThreadPrivate::start (arg=0x20e1940) at thread/qthread_unix.cpp:248
#5  0x00007fac552d49ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fac58e0f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fac2b294710 (LWP 3443)):
#0  0x00007fac58e02f53 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fac4eec84a9 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fac4eec88fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#3  0x00007fac55682566 in QEventDispatcherGlib::processEvents (this=0x21072e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:414
#4  0x00007fac55657992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#5  0x00007fac55657d6c in QEventLoop::exec (this=0x7fac2b293d70, flags=) at kernel/qeventloop.cpp:201
#6  0x00007fac55561d59 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#7  0x00007fac55638178 in QInotifyFileSystemWatcherEngine::run (this=0x2106830) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fac55564775 in QThreadPrivate::start (arg=0x2106830) at thread/qthread_unix.cpp:248
#9  0x00007fac552d49ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007fac58e0f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fac2a46f710 (LWP 3444)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fac53d87ca6 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x00007fac53d87ce9 in ?? () from /usr/lib/libQtWebKit.so.4
#3  0x00007fac552d49ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007fac58e0f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fac279c3710 (LWP 3445)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fac57e732a6 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fac58151220) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007fac57e732e9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fac5815f2ec) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007fac552d49ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007fac58e0f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fac1e4ba710 (LWP 3446)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
#1  0x00007fac55565692 in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x2339280, time=30000) at thread/qwaitcondition_unix.cpp:85
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x2339280, time=30000) at thread/qwaitcondition_unix.cpp:159
#3  0x00007fac5555aa79 in QThreadPoolThread::run (this=0x2069e40) at concurrent/qthreadpool.cpp:140
#4  0x00007fac55564775 in QThreadPrivate::start (arg=0x2069e40) at thread/qthread_unix.cpp:248
#5  0x00007fac552d49ca in start_thread (arg=<value optimized out>) at pthread_create.c:300
#6  0x00007fac58e0f69d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fac593ed7a0 (LWP 3437)):
[KCrash Handler]
#5  0x00007fac58d5ca75 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007fac58d605c0 in *__GI_abort () at abort.c:92
#7  0x00007fac58d964fb in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#8  0x00007fac58da05b6 in malloc_printerr (action=3, str=0x7fac58e724b8 "munmap_chunk(): invalid pointer", ptr=<value optimized out>) at malloc.c:6264
#9  0x00007fac593f8a6b in ?? () from /usr/lib/nvidia-current/tls/libnvidia-tls.so.1
#10 0x00007fac55e6da75 in ~QImageData (this=0x2857370, __in_chrg=<value optimized out>) at image/qimage.cpp:259
#11 0x00007fac55e6e343 in ~QImage (this=0x2328940, __in_chrg=<value optimized out>) at image/qimage.cpp:1302
#12 0x00007fac56f1997c in KIconLoader::loadIcon (this=0x142e510, _name=..., group=<value optimized out>, size=<value optimized out>, state=<value optimized out>, overlays=..., path_store=0x0, 
    canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1269
#13 0x00007fac56f1152c in KIconEngine::actualSize (this=<value optimized out>, size=<value optimized out>, mode=<value optimized out>, state=<value optimized out>)
    at ../../kdeui/icons/kiconengine.cpp:80
#14 0x00007fac55e5726c in QIcon::actualSize (this=<value optimized out>, size=..., mode=6, state=4294967295) at image/qicon.cpp:700
#15 0x00007fac58a14497 in Plasma::IconWidgetPrivate::decoration (this=0x17f42c0, option=<value optimized out>, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:701
#16 0x00007fac58a15afc in Plasma::IconWidget::paint (this=0x18955f0, painter=0x7fff8d14aa70, option=0x141f9c8, widget=<value optimized out>) at ../../plasma/widgets/iconwidget.cpp:1013
#17 0x00007fac563b181a in _q_paintItem (item=<value optimized out>, painter=0x7fff8d14aa70, option=0x141f9c8, widget=0x0, useWindowOpacity=<value optimized out>, 
    painterStateProtection=<value optimized out>) at graphicsview/qgraphicsscene.cpp:4243
#18 0x00007fac563b1aac in _q_paintIntoCache (pix=0x7fff8d14b100, item=<value optimized out>, pixmapExposed=..., itemToPixmap=<value optimized out>, renderHints=)
    at graphicsview/qgraphicsscene.cpp:4281
#19 0x00007fac563c5d33 in QGraphicsScenePrivate::drawItemHelper (this=<value optimized out>, item=0x1895600, painter=0x7fff8d14ca30, option=0x141f9c8, widget=<value optimized out>, 
    painterStateProtection=<value optimized out>) at graphicsview/qgraphicsscene.cpp:4574
#20 0x00007fac563c6625 in QGraphicsScenePrivate::draw (this=<value optimized out>, item=0x1895600, painter=0x7fff8d14ca30, viewTransform=<value optimized out>, transformPtr=<value optimized out>, 
    exposedRegion=<value optimized out>, widget=0x2739260, opacity=<value optimized out>, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true)
    at graphicsview/qgraphicsscene.cpp:4827
#21 0x00007fac563c7272 in QGraphicsScenePrivate::drawSubtreeRecursive (this=<value optimized out>, item=0x1895600, painter=0x7fff8d14ca30, viewTransform=0x7fff8d14c7e0, exposedRegion=0x2735a00, 
    widget=0x2739260, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#22 0x00007fac563c66c0 in QGraphicsScenePrivate::draw (this=<value optimized out>, item=0x189f6c0, painter=0x7fff8d14ca30, viewTransform=<value optimized out>, transformPtr=<value optimized out>, 
    exposedRegion=<value optimized out>, widget=0x2739260, opacity=<value optimized out>, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true)
    at graphicsview/qgraphicsscene.cpp:4841
#23 0x00007fac563c7272 in QGraphicsScenePrivate::drawSubtreeRecursive (this=<value optimized out>, item=0x189f6c0, painter=0x7fff8d14ca30, viewTransform=0x7fff8d14c7e0, exposedRegion=0x2735a00, 
    widget=0x2739260, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#24 0x00007fac563c66c0 in QGraphicsScenePrivate::draw (this=<value optimized out>, item=0x171c1c0, painter=0x7fff8d14ca30, viewTransform=<value optimized out>, transformPtr=<value optimized out>, 
    exposedRegion=<value optimized out>, widget=0x2739260, opacity=<value optimized out>, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true)
    at graphicsview/qgraphicsscene.cpp:4841
#25 0x00007fac563c7272 in QGraphicsScenePrivate::drawSubtreeRecursive (this=<value optimized out>, item=0x171c1c0, painter=0x7fff8d14ca30, viewTransform=0x7fff8d14c7e0, exposedRegion=0x2735a00, 
    widget=0x2739260, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4749
#26 0x00007fac563c7c34 in QGraphicsScenePrivate::drawItems (this=0x141f770, painter=0x7fff8d14ca30, viewTransform=0x7fff8d14c7e0, exposedRegion=0x2735a00, widget=0x2739260)
    at graphicsview/qgraphicsscene.cpp:4619
#27 0x00007fac563e7465 in QGraphicsView::paintEvent (this=0x2735040, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3393
#28 0x00007fac55dfb162 in QWidget::event (this=0x2735040, event=0x7fff8d14d360) at kernel/qwidget.cpp:8144
#29 0x00007fac561a24e6 in QFrame::event (this=0x2735040, e=0x7fff8d14d360) at widgets/qframe.cpp:557
#30 0x00007fac563e3f0b in QGraphicsView::viewportEvent (this=0x2735040, event=0x7fff8d14d360) at graphicsview/qgraphicsview.cpp:2787
#31 0x00007fac55658487 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2739260, event=0x7fff8d14d360) at kernel/qcoreapplication.cpp:819
#32 0x00007fac55da51fc in QApplicationPrivate::notify_helper (this=0x142e6e0, receiver=0x2739260, e=0x7fff8d14d360) at kernel/qapplication.cpp:4296
#33 0x00007fac55dab6fb in QApplication::notify (this=0x1410a20, receiver=0x2739260, e=0x7fff8d14d360) at kernel/qapplication.cpp:4183
#34 0x00007fac56f51526 in KApplication::notify (this=0x1410a20, receiver=0x2739260, event=0x7fff8d14d360) at ../../kdeui/kernel/kapplication.cpp:302
#35 0x00007fac5565906c in QCoreApplication::notifyInternal (this=0x1410a20, receiver=0x2739260, event=0x7fff8d14d360) at kernel/qcoreapplication.cpp:704
#36 0x00007fac55e037dd in QCoreApplication::sendSpontaneousEvent (this=0x2739320, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x20d1fa0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#37 QWidgetPrivate::drawWidget (this=0x2739320, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, backingStore=0x20d1fa0)
    at kernel/qwidget.cpp:5339
#38 0x00007fac55e04478 in QWidgetPrivate::paintSiblingsRecursive (this=<value optimized out>, pdev=<value optimized out>, siblings=..., index=2, rgn=<value optimized out>, 
    offset=<value optimized out>, flags=4, sharedPainter=0x0, backingStore=0x20d1fa0) at kernel/qwidget.cpp:5452
#39 0x00007fac55e0353a in QWidgetPrivate::drawWidget (this=0x2735540, pdev=<value optimized out>, rgn=..., offset=<value optimized out>, flags=<value optimized out>, sharedPainter=0x0, 
    backingStore=0x20d1fa0) at kernel/qwidget.cpp:5388
#40 0x00007fac55fbd8c5 in QWidgetBackingStore::sync (this=0x20d1fa0) at painting/qbackingstore.cpp:1291
#41 0x00007fac55fbdc19 in QWidgetBackingStore::sync (this=0x20d1fa0, exposedWidget=0x2735040, exposedRegion=...) at painting/qbackingstore.cpp:1096
#42 0x00007fac55e1e60a in QETWidget::translatePaintEvent (this=0x2735040, event=<value optimized out>) at kernel/qapplication_x11.cpp:5078
#43 0x00007fac55e29c8b in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff8d14e580) at kernel/qapplication_x11.cpp:3401
#44 0x00007fac55e55882 in x11EventSourceDispatch (s=0x1431e30, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#45 0x00007fac4eec48c2 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#46 0x00007fac4eec8748 in ?? () from /lib/libglib-2.0.so.0
#47 0x00007fac4eec88fc in g_main_context_iteration () from /lib/libglib-2.0.so.0
#48 0x00007fac55682513 in QEventDispatcherGlib::processEvents (this=0x13f6440, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#49 0x00007fac55e5546e in QGuiEventDispatcherGlib::processEvents (this=0xd6d, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007fac55657992 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#51 0x00007fac55657d6c in QEventLoop::exec (this=0x7fff8d14e8b0, flags=) at kernel/qeventloop.cpp:201
#52 0x00007fac5565baab in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#53 0x00007fac590e6fb2 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../../../plasma/desktop/shell/main.cpp:112
#54 0x00007fac58d47c4d 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=0x7fff8d14ec38) at libc-start.c:226
#55 0x00000000004006c9 in _start ()

Reported using DrKonqi