Qt 4.6.2 with tslib - Seg Fault

Hi I have a custom application (its a modified fancybrowser) which runs on
a Qt 4.6.2 installation successfully when the QWS_MOUSE_PROTO variable is
set to use the mouse event. When I change it to capture the touchscreen
event, then the same application gives a seg fault. The tslib files are
properly placed on mini2440's nand and environment varibales are set. The
ts_calibrate runs fine and so does the ts_test. Just to add, I have put my
Qt 4.2 libs over the Qtopia 2.2 installation and modified the env properly.
Any Help would be appreciated.

Do you have the binaries with debug information available? If yes, you
could run the 'catchsegv' tool. It will show you the source code line where
the segfault happens at runtime. This could give you a hint where the bug
is and how to fix it.

Try this.

echo 2 > /proc/cpu/alignment