Hi Ralph,
Can you provide an .atp file for the application that shows <UnknownKernelName>? You can generate an .atp file using "sprofile --hsatrace <application>"
In current profiler builds, kernel names are only shown if the applications calls certain HSA APIs. In future builds, this is simplified a bit and should work in most cases, but if you can send me your .atp file, I should be able to confirm that the new mechanism will work with your application.
Thanks,
Chris