hi one of my program freeze the whole machine, but before that logtool say :

Exception 3 <Illegal Data Access at 73616434 DSISR 40000000, Load from a not existing Page>

What does it mean ?

It is reading from an illegal address.

thanks

If you want to understand more - henes made a nice guide about MorphOS debug -> http://www.biclodon.com/documentation/morphosdebug/