Re: 2.6.17-rc5-mm2 -- PCI: Bus #03 (-#06) is hidden behind transparent bridge #02 (-#02) (try 'pci=assign-busses')

From: Greg KH
Date: Thu Jun 01 2006 - 17:09:21 EST


On Thu, Jun 01, 2006 at 09:53:35AM -0700, Andrew Morton wrote:
> On Thu, 1 Jun 2006 10:52:26 -0400
> "Miles Lane" <miles.lane@xxxxxxxxx> wrote:
>
> > ACPI: setting ELCR to 0200 (from 0c38)
> > PM: Adding info for No Bus:platform
> > NET: Registered protocol family 16
> > ACPI: bus type pci registered
> > PCI: PCI BIOS revision 2.10 entry at 0xfd9c2, last bus=2
> > Setting up standard PCI resources
> > ACPI: Subsystem revision 20060310
> > ACPI: Interpreter enabled
> > ACPI: Using PIC for interrupt routing
> > PM: Adding info for acpi:acpi
> > ACPI: PCI Root Bridge [PCI0] (0000:00)
> > PCI: Probing PCI hardware (bus 00)
> > PM: Adding info for No Bus:pci0000:00
> > Boot video device is 0000:00:02.0
> > PCI quirk: region 1000-107f claimed by ICH4 ACPI/GPIO/TCO
> > PCI quirk: region 1180-11bf claimed by ICH4 GPIO
> > PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
> > PCI: Transparent bridge - 0000:00:1e.0
> > PCI: Bus #03 (-#06) is hidden behind transparent bridge #02 (-#02)
> > (try 'pci=assign-busses')
> > Please report the result to linux-kernel to fix this permanently
>
> I guess you're supposed to try 'pci=assign-busses'.
>
> Does the machine work OK without pci=assign-busses?
>
> Does the machine work OK with pci=assign-busses?
>
> Greg, what are we supposed to be doing here? Grab the PCI IDs and add a
> quirk somewhere?

Not quite sure. Bernhard, this was caused by your patch. Any thoughts
as to what should be done?

thanks,

greg k-h
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