tortoize test on s390x segfaults

Hi,

The new version of tortoize I just uploaded segfaults on s390x, just 
like the previous version. Apparently, something is broken. But apart 
from the log file, I have no information why this happens. I also don't 
have a spare s390x in my computer closet, so it would be really welcome 
if anyone here has an idea how to debug this.

regards, -maarten