Re: [Xen-devel] netfront: rx->offset: 12, size: 4294967295

[Jacek Konieczny <jajcus@xxxxxxxxxx>]

On Fri, Jun 01, 2007 at 06:38:23PM +0100, Keir Fraser wrote:
> If your dom0 and domU kernel are both from 3.1.0 then you should not see
> 'grant transfer' messages. The transfer mechanism was replaced by copying
> several Xen versions ago. 

The transfer is the same thing as 'page flip'?

> So I think your dom0 and domU kernels are actually
> of dubious origin. Are you sure you really are running the kernels that you
> think you are?

How can I check what Xen version the kernel supports?

The kernels in both dom0 and domU are, according to `uname -a`, both
built today. Both 2.6.18 (Xen 3.0.4 was for 2.6.16, I have not do extra
patching to apply older xen to newer kerenel). 

DomU kernel has old xen compatibility options enabled (currently 3.0.4
and later):

# CONFIG_XEN_COMPAT_030002_AND_LATER is not set
CONFIG_XEN_COMPAT_030004_AND_LATER=y
# CONFIG_XEN_COMPAT_LATEST_ONLY is not set
CONFIG_XEN_COMPAT=0x030004

Dom0 also has compatibility options enabled (3.0.2 and later, as copied
from xen-provided configs):

CONFIG_XEN_COMPAT_030002_AND_LATER=y
# CONFIG_XEN_COMPAT_030004_AND_LATER is not set
# CONFIG_XEN_COMPAT_LATEST_ONLY is not set
CONFIG_XEN_COMPAT=0x030002

Greets,
        Jacek

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