Ive never had an issue with any other install than 9.10 with my softraid. 9.04 worked fine with it.
Ive never had an issue with any other install than 9.10 with my softraid. 9.04 worked fine with it.
Try reading anything on the raid drivers with the newer kernel. We use it with hardware raid controllers at work and no issues.
When I owned a desktop at home I had to do some juggling to get 8.10 to work with the software raid. I haven't really messed with it since I sold my PC.