here is gdb out put.


Programe recived signal SIGSEGV, Segmentation fault.
0x408e2384 in QGraphicsScene::focusItem() const ()
from /usr/lib/libqtgui.so.4

0x408e2384 <_ZNK14QGraphicsScene9focusItemEv+8>;

ldrr4,[r0,#4]

(gdb) bt

#1 0x408e2384 in QGraphicsScene::focusItem( const () from /usr/lib/libqtGui.so.4

#2 0x4089c108 in ??() from /usr/lib/libqtGUI.so.4

#3 0x4089c108 in ?? from /usr/lib/libqtgui.so.4

Backtrace stopped: previous frame identical to this fram(currupt stack?)