Re: merge bouyer-xenpvh to HEAD

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

I cc'd maxv about the problem; for the moment I am using the kernel
from before the merge on the machine running nvmm.

On Mon, 27 Apr 2020 at 12:01, Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:
>
> On Mon, Apr 27, 2020 at 11:51:23AM +0100, Chavdar Ivanov wrote:
> > There is one problem, though.
> >
> > The new GENERIC killed nvmm for me. You can load the module, but as
> > soon as you start an nvmm guest, the machine gridns to a halt, it
> > stops every disk access, although you can still switch between the
> > tmux sessions in my case or type on the console window; the commands
> > entered never return anything back. Interrupt into ddb shows again
> > only the idle loop.
> >
> > So in this shape GENERIC is probably not usable. Although one will
> > never run the same machine as a XEN giuest and qemu-nvmm host, the
> > kernel breaks the latter.
>
> I'm not sure why the Xen support would affect nvmm; it may be something
> else (there's been lots of changes HEAD in the last few days).
>
> You could try building a kernel without the Xen options and see if it makes
> things better for nvmm.
>
> --
> Manuel Bouyer <bouyer%antioche.eu.org@localhost>
>      NetBSD: 26 ans d'experience feront toujours la difference
> --



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