Has anyone managed to get FreeBSD to work with a v5? I've had a vanilla FBSD 4.7 run just fine on ealier IOs, but on a v5 it gets to the end of the kernel device probes, where it reads disk geomtery just prior to mounting the filesystems, and I get a succession of errors - first it switches from DMA66 to DMA33, complaining that the drive or cable doesn't support DMA66, then I get read timeouts, then a kernel panic.
I've tried two drives and two cables with the same results, and these same drives/cables will boot and run WinXP just fine, so I don't think its faulty hardware. The same drive/cable plugged into a v1 or v3b boots FBSD just fine too, so it seems some hardware change has been made on v5's. Anyone know any more about this?