Unknown Southbridge (was: Disk-I/O and kupdated@99.9% system (2.4.18-pre9))

[Florian Hars <florian@hars.de>]

I wrote:
> Whenever I do some heavy disk-I/O (like untaring an archive with 13000
> files that amount to 5GB), the CPU-state repeatedly goes to 99.9%
> system

Part of the problem could be alleviated by unmasking the interrupts,
but now some part of the IDE system is crying for its master:

Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller on PCI bus 00 dev 89
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: Unknown VIA SouthBridge, contact Vojtech Pavlik <vojtech@suse.cz>

I use a Gigabyte GA-7VTXE with a VIA KT266A chipset and a Southbridge
called VT8233A, which does not look like one of the "FUTURE_BRIDGES"
that are ifdefed out in the driver (or is it the same as the
{ "vt8233c",    PCI_DEVICE_ID_VIA_8233C,    0x00, 0x2f, VIA_UDMA_100 } ?).

Yours, Florian Hars.