On Thu, Apr 05, 2001 at 08:22:19AM +0200, Andreas Tille wrote:
::snip? snip!::
> ...
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> ^^^^^^^^^^^^^^
> PIIX4: IDE controller on PCI bus 00 dev 39
> PIIX4: chipset revision 1
> PIIX4: not 100% native mode: will probe irqs later
> ide0: BM-DMA at 0x1040-0x1047, BIOS settings: hda:DMA, hdb:pio
> ide1: BM-DMA at 0x1048-0x104f, BIOS settings: hdc:pio, hdd:pio
> hda: HITACHI_DK23BA-20, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
>
>
> What is limited here and why is 33MHz assumed if I have UDMA 66MHz?
33MHz is the bus speed. You do not have UDMA66(MHz), but rather, have
UDMA66(MBps). I am not sure if this is the correct answer, but I have
noticed that many recent mobos use PCI bus-mastering controllers
(Windows reports "Via BusMaster PCI IDE Controller"), and the
non-overclocked PCI bus speed is 33MHz.
> These kernel messages are new since kernel 2.4.2 (which are reported
> by logcheck.
>
> Kind regards
>
> Andreas.
--xsdg
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