Re: [Xen-devel] Re: XEN boot hangs at ACPI: PCI Root Bridge [PCI0] (0000:00)

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Nov 26, 2010 at 11:45:56AM -0800, Neobiker wrote:
> 
> Hi,
> most kernels (32-bit) except the squeeze 64-bit kernel produce the following
> error:
> 
> Linux agpgart interface v0.103
> agpgart-intel 0000:00:00.0: Intel Q35 Chipset
> agpgart-intel 0000:00:00.0: can't get memory for scratch page

That looks oddly familiar, but I can't remember where I saw it.

> agpgart-intel 0000:00:00.0: agp_backend_initialize() failed
> agpgart-intel: probe of 0000:00:00.0 failed with error -12
> [drm:drm_fill_in_dev] *ERROR* Cannot initialize the agpgart module.
> 
> Above ist actually seen FC14 / XEN 4.0.1 with latest kernel from MA Young:
> 2.6.32.26-174.xendom0.fc12.i686.PAE

You are comparing oranges and bananses here. The MA Young vs Squeeze (unless
you are using the IanC set of kernels) have a different set of patches for the 
GART controller.

Wht happens if you run a 2.6.32.26-174.xendom0.fc12.x86_64 kernel?

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