Application: amarok (2.3-GIT)
KDE Platform Version: 4.4.4 (KDE 4.4.4)
Qt Version: 4.6.3
Operating System: Linux 2.6.33-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
1. Change phonon backend to phonon-vlc
2. Run amarok.
3. Swith back to phonon-xine.
4. Quit from Amarok.

The crash can be reproduced every time.

 -- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fac57f827a0 (LWP 339))]

Thread 10 (Thread 0x7fabf0616710 (LWP 340)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac447aae58 in Thread () from /usr/lib/libvlccore.so.5
#2  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#3  0x00007fac54d8378d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fabef072710 (LWP 343)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac561ffb4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fac51e7905e in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#3  0x00007fac51e7b373 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#4  0x00007fac51e7b38c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#5  0x00007fac51e7a26f in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#6  0x00007fac51e7a2f8 in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#9  0x00007fac54d8378d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fabe383a710 (LWP 344)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac561ffb4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fac51e7905e in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#3  0x00007fac51e7b373 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#4  0x00007fac51e7b38c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#5  0x00007fac51e7b38c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#6  0x00007fac51e7b38c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#7  0x00007fac51e7a26f in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#8  0x00007fac51e7a2f8 in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#9  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#10 0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#11 0x00007fac54d8378d in clone () from /lib/libc.so.6
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fabe3039710 (LWP 345)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac561ffb4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fac51e7905e in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#3  0x00007fac51e7b373 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#4  0x00007fac51e7b38c in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#5  0x00007fac51e7a26f in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#6  0x00007fac51e7a2f8 in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#7  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#9  0x00007fac54d8378d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fabe2838710 (LWP 346)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac561ffb4b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fac51e7905e in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned(ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#3  0x00007fac51e7b373 in ThreadWeaver::WorkingHardState::applyForWork(ThreadWeaver::Thread*, ThreadWeaver::Job*) () from /usr/lib/libthreadweaver.so.4
#4  0x00007fac51e7a26f in ThreadWeaver::ThreadRunHelper::run(ThreadWeaver::WeaverImpl*, ThreadWeaver::Thread*) () from /usr/lib/libthreadweaver.so.4
#5  0x00007fac51e7a2f8 in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#7  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#8  0x00007fac54d8378d in clone () from /lib/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fabe2037710 (LWP 348)):
#0  0x00007fac54d7d093 in select () from /lib/libc.so.6
#1  0x00007fac562c6e3d in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#3  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#4  0x00007fac54d8378d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fabdf81d710 (LWP 354)):
#0  0x00007fac54d54b5d in nanosleep () from /lib/libc.so.6
#1  0x00007fac54d549ef in sleep () from /lib/libc.so.6
#2  0x00007fac516cd4cf in ?? () from /usr/lib/libQtScript.so.4
#3  0x00007fac516cd579 in ?? () from /usr/lib/libQtScript.so.4
#4  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#5  0x00007fac54d8378d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fabdb63f710 (LWP 356)):
#0  0x00007fac534177a9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac561ffab2 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fac561f5ba0 in ?? () from /usr/lib/libQtCore.so.4
#3  0x00007fac561ff485 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#5  0x00007fac54d8378d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fabf0515710 (LWP 372)):
#0  0x00007fac5341743c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fac447aae58 in Thread () from /usr/lib/libvlccore.so.5
#2  0x00007fac53412cb0 in start_thread () from /lib/libpthread.so.0
#3  0x00007fac54d8378d in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fac57f827a0 (LWP 339)):
[KCrash Handler]
#5  0x00007fac44ca7f90 in QList<Phonon::VLC::SinkNode*>::removeAll(Phonon::VLC::SinkNode* const&) () from /usr/lib/kde4/plugins/phonon_backend/phonon_vlc.so
#6  0x00007fac44ca65da in Phonon::VLC::VLCMediaObject::removeSink(Phonon::VLC::SinkNode*) () from /usr/lib/kde4/plugins/phonon_backend/phonon_vlc.so
#7  0x00007fac44ca16c1 in Phonon::VLC::SinkNode::disconnectFromMediaObject(Phonon::VLC::VLCMediaObject*) () from /usr/lib/kde4/plugins/phonon_backend/phonon_vlc.so
#8  0x00007fac44c965b7 in Phonon::VLC::Backend::disconnectNodes(QObject*, QObject*) () from /usr/lib/kde4/plugins/phonon_backend/phonon_vlc.so
#9  0x00007fac5280905d in Phonon::PathPrivate::executeTransaction(QList<QPair<QObject*, QObject*> > const&, QList<QPair<QObject*, QObject*> > const&) () from /usr/lib/libphonon.so.4
#10 0x00007fac52809907 in Phonon::PathPrivate::phononObjectDestroyed(Phonon::MediaNodePrivate*) () from /usr/lib/libphonon.so.4
#11 0x00007fac5280850c in Phonon::MediaNodePrivate::~MediaNodePrivate() () from /usr/lib/libphonon.so.4
#12 0x00007fac5281ad1d in Phonon::VideoWidgetPrivate::~VideoWidgetPrivate() () from /usr/lib/libphonon.so.4
#13 0x00007fabe3e7c5e0 in CustomVideoWidget::~CustomVideoWidget() () from /usr/lib/kde4/amarok_context_applet_videoclip.so
#14 0x00007fac562f6a74 in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#15 0x00007fac55731a15 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#16 0x00007fac55731c69 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#17 0x00007fac562f6a74 in QObjectPrivate::deleteChildren() () from /usr/lib/libQtCore.so.4
#18 0x00007fac55731a15 in QWidget::~QWidget() () from /usr/lib/libQtGui.so.4
#19 0x00007fac55cdf975 in QGraphicsView::~QGraphicsView() () from /usr/lib/libQtGui.so.4
#20 0x00007fac56c4882d in Context::ContextView::~ContextView() () from /usr/lib/libamaroklib.so.1
#21 0x00007fac56c48e69 in Context::ContextView::~ContextView() () from /usr/lib/libamaroklib.so.1
#22 0x00007fac572abf27 in MainWindow::~MainWindow() () from /usr/lib/libamaroklib.so.1
#23 0x00007fac572ac309 in MainWindow::~MainWindow() () from /usr/lib/libamaroklib.so.1
#24 0x00007fac572740d2 in App::~App() () from /usr/lib/libamaroklib.so.1
#25 0x00000000004080bb in _start ()

Reported using DrKonqi