I have an aligment trap in combination with Declarative Component. But have tested with a more simple test program.

1.) I compiled Qt with this configuration.
./configure -prefix /opt/omap/target/qte471 -embedded arm -platform qws/linux-x86-g++ -xplatform qws/linux-omap-g++ -release -fast -depths 16 -no-cups -no-largefile -no-accessibility -no-openssl -qt-mouse-pc -qt-mouse-linuxtp -qt-mouse-linuxinput -plugin-mouse-linuxtp -plugin-mouse-pc -fast -qt-gfx-linuxfb -qt-kbd-tty -qt-mouse-tslib -no-exceptions -no-svg -no-xmlpatterns -no-feature-cursor -nomake examples -nomake demos -declarative -no-declarative-debug -no-webkit -no-phonon -no-qt3support -no-mmx -no-3dnow -no-sse -no-sse2 -no-glib -no-cups -no-largefile -no-openssl -no-gtkstyle -no-audio-backend -no-multimedia -no-decoration-styled -no-decoration-default -no-decoration-windows -v

2.) Compilersettings are Code Sourcery standard but with -Os

3.) Very simple Testprogram
#include <QtGui/QApplication>
#include <QPushButton>

int main(int argc, char *argv[])
{
QApplication app (argc, argv);

QPushButton b;
b.show();

return app.exec();
}

4.) Backtrace is attached

Cya Max