Re: NetBSD DomU in Xen 4 challenges

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Sep 15, 2011 at 12:22:02PM -0400, metalliqaz%fastmail.fm@localhost 
wrote:
> I'm running Debian 6.0 (Squeeze) Dom0 on a dual-Xeon machine (4 cores
> total, VT-x).  Xen is version 4.0.  I'm running NetBSD 5.1 in a DomU.
> 
> First, I had the NetBSD/Xen4 ethernet problem.  I couldn't get any
> network connectivity whatsoever.  Installing the netbsd-XEN3_DOMU kernel
> from -current (I'm at 5.99.55) fixed it.  Traces of this issue can be
> found all over the 'net if you google for it, usually without
> explanation or workarounds being found.  This should REALLY be added to
> the NetBSD Xen FAQ.

No, in should be understood why a recent netbsd-5 kernel didn't work
(and it's probably not a xen4 issue, it's a dom0 issue).

> 
> Next, I am unable to use more than one vcpu in PV mode.  I haven't tried
> HVM mode because I'd prefer PV for NetBSD.  I found something that
> proposed a (SoC?) project for adding this capability, so I assume that
> I'm observing a feature and not a bug.  My question is, has there been
> any progress towards supporting this?  What is the current state of
> multi-proc on DomU?  This is something that really surprised me, because
> I thought that NetBSD offered full Xen support.

Look for posts from Cherry G. Mathew about this; he's working on it.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--