I received a brand new driver version directly from Highpoint support that is supposed to deal with the Marvel chipset/VT-d bug for RocketRaid HBAs. I do not know how to integrate this for even testing purposes, but support insists this driver was created specifically for this problem. Seems like a good idea to include this driver then. RR276x_Linux_Src_v1.2.2_17_08_07.tar.gz