Re: installing w/udma66

[xsdg <xsdg@softhome.net>]

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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