Crash when painting cover images

[Daniel Winter]

I added basic cover support to Nepomuk Collection and now Amarok crashes 
somewhere in Qt. 

Thread 1 (Thread 0xb38ff6f0 (LWP 32464)):                                                                                                 
#0  0xb7efc424 in __kernel_vsyscall ()                                                                                                    
#1  0xb7cfdacb in waitpid () from /lib/libpthread.so.0                                                                                    
#2  0xb783c3a5 in Amarok::Crash::crashHandler () at /home/kde-
devel/kdesvn/extragear/multimedia/amarok/src/CrashHandler.cpp:254           
#3  <signal handler called>
#4  0xb4fddbb1 in QPainter::isActive () from /usr/lib/libQtGui.so.4
#5  0xb4fe1675 in QPainter::clipPath () from /usr/lib/libQtGui.so.4
#6  0xb5078c1f in ?? () from /usr/lib/libQtGui.so.4
#7  0xbfa13bf8 in ?? ()
#8  0x0a2fe830 in ?? ()
#9  0xbfa13b90 in ?? ()

I think I am missing Qt debuging symbols. 

The pimaps are returned that way:

(in the image() function of the Albums)

QPixmap img( m_imagePath );
if ( !img.isNull() )
{
   return img.scaled( size, size, Qt::KeepAspectRatio, 
Qt::SmoothTransformation );
}

(yes i am doing no local caching in filesystem at the moment) 

Does someone know why it is crashing? 

Has it something to do with the Qt Pixmap cache which I am possible 
overwriting (with the image loading in the QPixmap constructor?) while the 
pixmap gets drawn?

DanielW