Re: Running OpenBSD/amd64 as HVM domU.

[Anders Magnusson <ragge%ltu.se@localhost>]

Manuel Bouyer wrote:
> On Sat, Jul 11, 2009 at 09:57:07AM +0200, Anders Magnusson wrote:
>   
>> I just did a test with Ubuntu as a HVM domU, and I got the same result
>> except for that the rtl8139 emulation worked
>> and seems to run just fine :-)
>> So it seems as there is a deeper problem when it comes to the ne driver
>> (and probably the others).
>>
>> Is this something in NetBSD or is it xen only?
>>     
>
> I don't think it's related to NetBSD, unless there's NetBSD-specific
> patches in this area (I didn't check). The Xen 3.1.4 rtl8139 emulation
> worked just fine with a NetBSD kernel for me (and does for a windows
> guest too), good enough to do a network install. I've not done much
> tests with Xen 3.3 yet.
>   
I have just realized that it only occurs when routing via dom0, not when
going directly
to the dom0 itself.  Scenario:

OpenBSD HVM DOMU -> em0 (emulated) -> bridge0 -> routed/natted in dom0
-> tlp0 ->  internet -> NBSD.

If I go directly to dom0 or have a ssh tunnel dom0 -> NBSD and goes via
that tunnel everything works fine,
but if I go directly OpenBSD -> NBSD it fails.

I have another physical interface on bridge0 and other machines
connected there which has no problem
with the routing/natting, so there are no errors in that setup.

Any clues?

-- Ragge