Version:           4.0.81 (using Devel)
Installed from:    Compiled sources
Compiler:          gcc 4.3 x86_64
OS:                Linux

When I login in KDE4 (4.0.80/4.0.81), I get a knotify4 crash pop-up dialog more than once a second, rendering my whole system unusable. I'm using Mandriva Linux Cooker x86_64.This is the stack trace:

Application: KNotify (knotify4), signal SIGABRT
Using host libthread_db library "/lib64/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 140402340501248 (LWP 4963)]
[New Thread 1102383440 (LWP 4965)]
[New Thread 1092196688 (LWP 4964)]
[KCrash handler]
#5  0x00007fb1f266b945 in raise () from /lib64/libc.so.6
#6  0x00007fb1f266d173 in abort () from /lib64/libc.so.6
#7  0x00007fb1f6e12405 in qt_message_output () from /usr/lib64/libQtCore.so.4
#8  0x00007fb1f6e1252d in qFatal () from /usr/lib64/libQtCore.so.4
#9  0x00007fb1ed985b7a in Phonon::Xine::XineEngine::nullPort ()
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/xineengine.cpp:256
#10 0x00007fb1ed98b479 in Phonon::Xine::XineStream::createStream (
    this=0x1567970)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/xinestream.cpp:379
#11 0x00007fb1ed98dd61 in Phonon::Xine::XineStream::event (this=0x1567970, 
    ev=0x15763f0)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/xinestream.cpp:959
#12 0x00007fb1f50fe1cd in QApplicationPrivate::notify_helper ()
   from /usr/lib64/libQtGui.so.4
#13 0x00007fb1f51054fe in QApplication::notify ()
   from /usr/lib64/libQtGui.so.4
#14 0x00007fb1f3bea23e in KApplication::notify (this=0x7fffffa41bc0, 
    receiver=0x1567970, event=0x15763f0)
    at /usr/src/debug/kdelibs-4.0.81/kdeui/kernel/kapplication.cpp:311
#15 0x00007fb1f6ef9e0c in QCoreApplication::notifyInternal ()
   from /usr/lib64/libQtCore.so.4
#16 0x00007fb1f6efd684 in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib64/libQtCore.so.4
#17 0x00007fb1f6f23300 in QEventDispatcherUNIX::processEvents ()
   from /usr/lib64/libQtCore.so.4
#18 0x00007fb1f6ef8a32 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#19 0x00007fb1f6ef8bc5 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#20 0x00007fb1f6e176dc in QThread::exec () from /usr/lib64/libQtCore.so.4
#21 0x00007fb1ed982f9f in Phonon::Xine::XineThread::run (this=0x1506150)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/xinethread.cpp:111
#22 0x00007fb1f6e1a9e4 in QThreadPrivate::start ()
   from /usr/lib64/libQtCore.so.4
#23 0x00007fb1f6ba22a3 in start_thread () from /lib64/libpthread.so.0
#24 0x00007fb1f2716e9d in clone () from /lib64/libc.so.6

Thread 1 (Thread 140402340501248 (LWP 4963)):
#0  0x00007fb1f6ba5f59 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib64/libpthread.so.0
#1  0x00007fb1f6e19d2b in QMutexPrivate::wait ()
   from /usr/lib64/libQtCore.so.4
#2  0x00007fb1f6e151ab in QMutex::lock () from /usr/lib64/libQtCore.so.4
#3  0x00007fb1ed98a9f7 in Phonon::Xine::XineStream::closeBlocking (
    this=0x1567970)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/xinestream.cpp:1242
#4  0x00007fb1ed998a5c in ~MediaObject (this=0x1565770)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/phonon/xine/mediaobject.cpp:120
#5  0x00007fb1f37c067b in Phonon::MediaNodePrivate::deleteBackendObject ()
   from /usr/lib64/libphonon.so.4
#6  0x00007fb1f37d34c2 in Phonon::FactoryPrivate::~FactoryPrivate$delete ()
   from /usr/lib64/libphonon.so.4
#7  0x00007fb1f37d24b4 in QObject::disconnectNotify ()
   from /usr/lib64/libphonon.so.4
#8  0x00007fb1f37b7acd in Phonon::CleanUpGlobalStatic::~CleanUpGlobalStatic ()
   from /usr/lib64/libphonon.so.4
#9  0x00007fb1f266e82d in exit () from /lib64/libc.so.6
#10 0x00007fb1f5155b18 in qt_xio_errhandler () from /usr/lib64/libQtGui.so.4
#11 0x00007fb1f3be8dd0 in KApplication::xioErrhandler (this=0x7fffffa41bc0, 
    dpy=0x1445890)
    at /usr/src/debug/kdelibs-4.0.81/kdeui/kernel/kapplication.cpp:418
#12 0x00007fb1f6486e83 in _XIOError () from /usr/lib64/libX11.so.6
#13 0x00007fb1f6490471 in QObject::disconnectNotify ()
   from /usr/lib64/libX11.so.6
#14 0x00007fb1f649055a in _XEventsQueued () from /usr/lib64/libX11.so.6
#15 0x00007fb1f646f20e in XEventsQueued () from /usr/lib64/libX11.so.6
#16 0x00007fb1f5186a77 in QEventDispatcherX11::processEvents ()
   from /usr/lib64/libQtGui.so.4
#17 0x00007fb1f6ef8a32 in QEventLoop::processEvents ()
   from /usr/lib64/libQtCore.so.4
#18 0x00007fb1f6ef8bc5 in QEventLoop::exec () from /usr/lib64/libQtCore.so.4
#19 0x00007fb1f6efd937 in QCoreApplication::exec ()
   from /usr/lib64/libQtCore.so.4
#20 0x000000000040653b in main (argc=1, argv=0x7fffffa41f68)
    at /usr/src/debug/kdebase-runtime-4.0.81/runtime/knotify/main.cpp:72
#21 0x00007fb1f265832a in __libc_start_main () from /lib64/libc.so.6
#22 0x0000000000405ed9 in _start ()
#0  0x00007fb1f6ba5f59 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib64/libpthread.so.0