Application: amarok (2.3.0)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-17-generic i686
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
launching the program from the terminal I have this result:

rmalinux@kappaLucid:~$ amarok
amarok(1497)/kdecore (KSycoca) KSycocaPrivate::openDatabase: Trying to open ksycoca from  "/var/tmp/kdecache-karmalinux/ksycoca4"
Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
amarok(1497)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
amarok(1497)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
amarok(1497)/kdecore (KConfigSkeleton) KCoreConfigSkeleton::writeConfig:
Calling appendChild() on a null node does nothing.
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: Nessun file o directory
QFileSystemWatcher: failed to add paths: /home/karmalinux/.config/ibus/bus
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
amarok(1497)/libplasma Plasma::ThemePrivate::config: using theme for app "amarok"
QGraphicsLinearLayout::removeAt: invalid index 1
<unknown program name>(1496)/: Communication problem with  "amarok" , it probably crashed.
Error message was:  "org.freedesktop.DBus.Error.ServiceUnknown" : " "The name org.kde.amarok was not provided by any .service files" "

karmalinux@kappaLucid:~$ KCrash: Application 'amarok' crashing...
sock_file=/home/karmalinux/.kde/socket-kappaLucid/kdeinit4__0
QSocketNotifier: Invalid socket 24 and type 'Read', disabling...

The crash can be reproduced every time.

 -- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0xb60db9b0 (LWP 1860))]

Thread 11 (Thread 0xb3f23b70 (LWP 1861)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e342 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d9c4 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0x07e34ce7 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 10 (Thread 0xb3722b70 (LWP 1862)):
#0  0x08ef9e16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x009c368b in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0x009c87b5 in QTimerInfoList::updateCurrentTime (this=0x995498c) at kernel/qeventdispatcher_unix.cpp:340
#3  0x009c87fa in QTimerInfoList::timerWait (this=0x995498c, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0x009c67a8 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xb372204c) at kernel/qeventdispatcher_glib.cpp:136
#5  0x019b2b2a in g_main_context_prepare () from /lib/libglib-2.0.so.0
#6  0x019b2f49 in ?? () from /lib/libglib-2.0.so.0
#7  0x019b3518 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#8  0x009c659f in QEventDispatcherGlib::processEvents (this=0x9a6fe98, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#9  0x00998ff9 in QEventLoop::processEvents (this=0xb3722210, flags=) at kernel/qeventloop.cpp:149
#10 0x0099944a in QEventLoop::exec (this=0xb3722210, flags=...) at kernel/qeventloop.cpp:201
#11 0x008955a8 in QThread::exec (this=0x99c5540) at thread/qthread.cpp:487
#12 0x05ed7a5a in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#13 0x0089832e in QThreadPrivate::start (arg=0x99c5540) at thread/qthread_unix.cpp:248
#14 0x00c5996e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#15 0x02e309de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 9 (Thread 0xb2dffb70 (LWP 1865)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x02e22b56 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0x05e24a8f in ?? () from /usr/lib/xine/plugins/1.27/xineplug_ao_out_alsa.so
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 8 (Thread 0xb25feb70 (LWP 1866)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d96d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x07e459ee in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 7 (Thread 0xb1bffb70 (LWP 1867)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d96d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x07e459ee in ?? () from /usr/lib/libxine.so.1
#4  0x00000000 in ?? ()

Thread 6 (Thread 0xb11ffb70 (LWP 1868)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d96d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x07e459ee in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 5 (Thread 0xb09feb70 (LWP 1869)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d96d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x07e459ee in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xa4ec0b70 (LWP 1870)):
#0  0x00c5bf6f in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#1  0x02e3db36 in pthread_mutex_lock () from /lib/tls/i686/cmov/libc.so.6
#2  0x019b1348 in g_main_context_acquire () from /lib/libglib-2.0.so.0
#3  0x019b2ebe in ?? () from /lib/libglib-2.0.so.0
#4  0x019b3518 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x009c659f in QEventDispatcherGlib::processEvents (this=0xa2b3378, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#6  0x00998ff9 in QEventLoop::processEvents (this=0xa4ec0220, flags=) at kernel/qeventloop.cpp:149
#7  0x0099944a in QEventLoop::exec (this=0xa4ec0220, flags=...) at kernel/qeventloop.cpp:201
#8  0x008955a8 in QThread::exec (this=0xa2c9508) at thread/qthread.cpp:487
#9  0x00978bcb in QInotifyFileSystemWatcherEngine::run (this=0xa2c9508) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0089832e in QThreadPrivate::start (arg=0xa2c9508) at thread/qthread_unix.cpp:248
#11 0x00c5996e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0x02e309de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xaf6a9b70 (LWP 1871)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x00c5e015 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x02e3d96d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x06e559d7 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x06e55a21 in ?? () from /usr/lib/libQtWebKit.so.4
#5  0x00c5996e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0x02e309de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xae975b70 (LWP 1872)):
#0  0x00c70422 in __kernel_vsyscall ()
#1  0x02e29941 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0x07e5e5cc in xine_usec_sleep () from /usr/lib/libxine.so.1
#3  0x00000000 in ?? ()

Thread 1 (Thread 0xb60db9b0 (LWP 1860)):
[KCrash Handler]
#6  0x042d2a52 in qt_closestItemFirst (item1=0xa3d2768, item2=0xa0795e0) at graphicsview/qgraphicsitem_p.h:681
#7  0x042d907f in QAlgorithmsPrivate::qSortHelper<QList<QGraphicsItem*>::iterator, QGraphicsItem*, bool (*)(QGraphicsItem const*, QGraphicsItem const*)> (start=..., end=..., t=@0xa3d2ad4, 
    lessThan=0x42d2980 <qt_closestItemFirst>) at ../../include/QtCore/../../src/corelib/tools/qalgorithms.h:351
#8  0x042d92b7 in qSort<QList<QGraphicsItem*>::iterator, bool (*)(QGraphicsItem const*, QGraphicsItem const*)> (start=..., end=..., lessThan=0x42d2980 <qt_closestItemFirst>)
    at ../../include/QtCore/../../src/corelib/tools/qalgorithms.h:187
#9  0x042d889e in QGraphicsSceneBspTreeIndexPrivate::sortItems (itemList=0xbf8f96bc, order=Qt::DescendingOrder, sortCacheEnabled=false, onlyTopLevelItems=false)
    at graphicsview/qgraphicsscenebsptreeindex.cpp:434
#10 0x042d8ab9 in QGraphicsSceneBspTreeIndex::items (this=0xa212618, order=Qt::DescendingOrder) at graphicsview/qgraphicsscenebsptreeindex.cpp:572
#11 0x042b1ec7 in QGraphicsScene::items (this=0xa227950) at graphicsview/qgraphicsscene.cpp:1900
#12 0x042b8719 in QGraphicsScene::itemsBoundingRect (this=0xa227950) at graphicsview/qgraphicsscene.cpp:1887
#13 0x042bf8fd in QGraphicsScene::sceneRect (this=0xa227950) at graphicsview/qgraphicsscene.cpp:1636
#14 0x042e273d in QGraphicsView::sceneRect (this=0xa26d4a0) at graphicsview/qgraphicsview.cpp:1625
#15 0x030ef669 in Plasma::viewFor (item=0xa3d2768) at ../../plasma/plasma.cpp:101
#16 0x031acba0 in Plasma::WebView::itemChange (this=0xa3d2760, change=QGraphicsItem::ItemSceneHasChanged, value=...) at ../../plasma/widgets/webview.cpp:492
#17 0x042c29e2 in QGraphicsScene::addItem (this=0xa227950, item=0xa3d2768) at graphicsview/qgraphicsscene.cpp:2621
#18 0x042c2947 in QGraphicsScene::addItem (this=0xa227950, item=0xa072ae8) at graphicsview/qgraphicsscene.cpp:2608
#19 0x04290fca in QGraphicsItemPrivate::setParentItemHelper (this=0xa80c020, newParent=0xa0795e0, newParentVariant=0xbf8f9bcc, thisPointerVariant=0xbf8f9bb4) at graphicsview/qgraphicsitem.cpp:1131
#20 0x0429164f in QGraphicsItem::setParentItem (this=0xa072ae8, newParent=0xa0795e0) at graphicsview/qgraphicsitem.cpp:1601
#21 0x030a9386 in Plasma::Containment::addApplet (this=0xa0795d8, applet=0xa072ae0, pos=..., delayInit=false) at ../../plasma/containment.cpp:941
#22 0x030a9b9d in Plasma::ContainmentPrivate::addApplet (this=0xa26d808, name=..., args=..., appletGeometry=..., id=0, delayInit=<value optimized out>) at ../../plasma/containment.cpp:2284
#23 0x030a9e19 in Plasma::Containment::addApplet (this=0xa0795d8, name=..., args=..., appletGeometry=...) at ../../plasma/containment.cpp:893
#24 0x033128db in Context::VerticalToolbarContainment::addApplet (this=0xa0795d8, pluginName=..., loc=-1) at ../../../../../src/context/containments/verticallayout/VerticalToolbarContainment.cpp:144
#25 0x03312e14 in Context::VerticalToolbarContainment::loadConfig (this=0xa0795d8, conf=...) at ../../../../../src/context/containments/verticallayout/VerticalToolbarContainment.cpp:110
#26 0x00db003b in Context::ContextView::loadConfig (this=0xa26d4a0) at ../../src/context/ContextView.cpp:224
#27 0x00db1811 in Context::ContextView::showHome (this=0xa26d4a0) at ../../src/context/ContextView.cpp:205
#28 0x011ffa6d in MainWindow::createContextView (this=0x98870e8, containment=0xa0795d8) at ../../src/MainWindow.cpp:408
#29 0x01201d26 in MainWindow::qt_metacall (this=0x98870e8, _c=QMetaObject::InvokeMetaMethod, _id=31, _a=0xbf8fa158) at ./MainWindow.moc:156
#30 0x0099fc3a in QMetaObject::metacall (object=0x98870e8, cl=168269280, idx=72, argv=0xbf8fa158) at kernel/qmetaobject.cpp:237
#31 0x009ae375 in QMetaObject::activate (sender=0xa227950, m=0x3260c44, local_signal_index=0, argv=0xbf8fa158) at kernel/qobject.cpp:3293
#32 0x030b9863 in Plasma::Corona::containmentAdded (this=0xa227950, _t1=0xa0795d8) at ./corona.moc:146
#33 0x030bebfd in Plasma::CoronaPrivate::addContainment (this=0xa227da0, name=..., args=..., id=0, delayedInit=false) at ../../plasma/corona.cpp:248
#34 0x030bbac2 in Plasma::Corona::addContainment (this=0xa227950, name=..., args=...) at ../../plasma/corona.cpp:468
#35 0x00daeadb in Context::ContextScene::loadDefaultSetup (this=0xa227950) at ../../src/context/ContextScene.cpp:45
#36 0x01202b0b in MainWindow::init (this=0x98870e8) at ../../src/MainWindow.cpp:303
#37 0x01204f7a in MainWindow (this=0x98870e8) at ../../src/MainWindow.cpp:182
#38 0x011cdac2 in App::continueInit (this=0xbf8fa858) at ../../src/App.cpp:681
#39 0x011d2349 in App (this=0xbf8fa858) at ../../src/App.cpp:212
#40 0x0804fffc in main (argc=1, argv=0xbf8fb0d4) at ../../src/main.cpp:235

Reported using DrKonqi