Subject: Re: xen3-dom0 crashed by using NFS mounted image file for domU
To: Manuel Bouyer <bouyer@antioche.eu.org>
From: Jonathan A. Kollasch <jakllsch@kollasch.net>
List: port-xen
Date: 11/13/2006 21:23:56
--St7VIuEGZ6dlpu13
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Sat, Nov 11, 2006 at 04:31:43PM +0100, Manuel Bouyer wrote:
> On Sat, Nov 11, 2006 at 05:41:55PM +0900, Kazushi Marukawa wrote:
> > Hi there,
> >=20
> > When I tried to run netbsd image on NFS mounted as xen3
> > domU, the xen3 dom0 netbsd was crashed.  I'm using 10/30
> > version of current 4.99.3.  This happens often when I try to
> > use NFS mounted image as domU.
> >=20
> > It is not so bad if this happens only if I use NFS mounted
> > images.  However, similar things happen rarely on a dom0
> > netbsd working as NFS and domU server but not using NFS
> > mounted images.  So, I reall want to get this problem fixed.
> >=20
> > Is there anything that I should try?  Or should I just do
> > send-pr?  Thanks.
>=20
> Please try a newer kernel; this may have been fixed since 10/30. If the
> problem persists, send-pr it.

If my recollection serves me, file-backed xbd(4)s are done through
vnd(4)s in the dom0.  vnd(4) (almost) explicitly states that
images on NFS are not supported.  (And aren't a real good idea to
start with, IMHO.)

Has this changed?

	Jonathan Kollasch

--St7VIuEGZ6dlpu13
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (NetBSD)

iD8DBQFFWTbMOjx1ye3hmokRAj73AKCmVlF6ufkOJl2O5WLot140xbAdbgCfflU9
z88n1clE8ziGV1bbYqRXgjM=
=BVvi
-----END PGP SIGNATURE-----

--St7VIuEGZ6dlpu13--