SiL3112 SATA (RAID) Controller drives aren't working at all.

[Gabriel Ambuehl]

The drivers in 28.9.JPSNAP of current will allow you to install
FreeBSD on a SATA disk connected to a Silicon Image 3112 SATA RAID
controller but not much more. Shortly after booting, the system will
start getting UDMA timeouts and basically just freezes. Furthermore,
the disks connected to the controller will ALWAYS show up as
individual disks in the setup, no matter if they are alone, in a
stripe set or a real RAID 1 array.

Seeing that this probably belongs in Soren's domain, is there any
possibility to add some function to atacontrol to allow rebuilding
without having hotswap on HPT/Promise chipsets? (I know the Windows
drivers of both can do so, so imagine the feature has to be
somewhere).