Re: [Xen-devel] xen 2.0.1, 2.4.27, 2.6.9, non-bridge

[Derrik Pates <dpates@xxxxxxxxxx>]

Adam Heath wrote:
> For 2.0, the way the bridge is configured breaks the existing networking, upon
> which nfsroot is running.
I don't see how. The only thing I've run into is the fact that the 
included script that's supposed to configure up xen-br0 doesn't transfer 
the config properly to xen-br0 from eth0, and doesn't change eth0's IP 
to 0.0.0.0; I'm intending to just remove the script from my Xen systems, 
and just configure the bridge device the right way from the word go.
> However, with *both* 2.4.27 *and* 2.6.9, I am getting kernel panics.  I have
> not run the oops on 2.4 thru ksymoops.  The built in oops decode logic in
> 2.6.9 shows a null pointer in the arp_send routine.
Well, that's an interesting bug; while I'm not a developer, I'd suggest 
running the Oops text through ksymoops (with an appropriate System.map), 
and sending the decoded Oops to the list along with anything else relevant.
> As a side node, it'd be nice if the network backend allowed for a pointopoint
> topology, or the existing method.  Ie, I'd like it switchable.
Hack the script; there's nothing magical about the bridge setup, you can 
use traditional IP routing if you want. As pointed out in the 
documentation, the virtual network interfaces are simply like having 
NICs in between real systems, with a crossover cable interconnecting; 
you can do anything network-wise from there, the default assumption is 
simply that you'll want to start with bridging, because it's simple, and 
just like what most people are expecting.
--
Derrik Pates
dpates@xxxxxxxxxx


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