Pkg xen devel - Oct 2009 - oldschool xen kernel on sid

Hello!

In an attempt to finally get a recent Xen dom0 kernel booted on this
pesky amd64 system (see
<http://lists.xensource.com/archives/html/xen-users/2009-10/msg00485.html>
for the (short) story), I wanted to give this one one a try:

Marco Nenciarini <mnencia at prato.linux.it>
wrote:
> I've applied latest forward ported patches from
> 
> http://code.google.com/p/gentoo-xen-kernel/downloads/list
> 
> to the 2.6.31 experimental package.
> The resulting kernel works well for me (at least on amd64 arch).
> 
> Fell free to reuse my little work
> http://www.prato.linux.it/~mnencia/xen/oldschool-xen-2.6.31-5.patch.bz2
I applied the patch, built the kernel, but it'll crash / reset the system
in the middle of the booting process.  The last thing I can see are some
``NET:'' messages.  How to help debugging this?  Marco, should I perhaps
give your binary packages a try?


Bastian, is any of your Xen dom0 work available somewhere?


Regards,
 Thomas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL:
<http://lists.alioth.debian.org/pipermail/pkg-xen-devel/attachments/20091027/6e99d855/attachment.pgp>

On Tue, Oct 27, 2009 at 10:05:45PM +0100, Thomas Schwinge
wrote:
> Bastian, is any of your Xen dom0 work available somewhere?
Yes. http://hermes.jura.uni-tuebingen.de/~blank/debian/xen-test.

3650d42842e0f19362134299a66c3e95159989676d1a721dbdfbddf3746dcd31 
linux-image-2.6.31-1-xen-686_2.6.31-1_i386.deb
3b51d61f3e21783f02f71d45fc57bd1a33660f05ccc7987bbd1ebd9dd2aeea12 
linux-image-2.6.31-1-xen-amd64_2.6.31-1_amd64.deb
bbf4de60b7e1eb9fa684da282e929b46b5420fc5fc42e70e7f335d63409b52e5 
xen-pvops.patch

Bastian

-- 
Change is the essential process of all existence.
		-- Spock, "Let That Be Your Last Battlefield", stardate 5730.2
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL:
<http://lists.alioth.debian.org/pipermail/pkg-xen-devel/attachments/20091027/284c74f3/attachment.pgp>

Hello!

Low-res pictures are on <http://www.thomas.schwinge.homeip.net/tmp/xen/>.
Sorry, I don't have anything better at the moment, but I'll explain them
below.

On Tue, Oct 27, 2009 at 11:55:33PM +0100, Bastian Blank
wrote:
> On Tue, Oct 27, 2009 at 11:15:13PM +0100, Thomas Schwinge wrote:
> > At this point, nothing is mounted on /root -- it's supposed to be
an ext3
> > filesystem based on a LVM LV.  And the very strange thing is that
> > /dev/mapper/ does contain only one LV device, and that is the swap LV
> > (254,0), but not the root filessystem one.
> 
> Please provide the complete log and the bootloader config.
GRUB2:

menuentry "Xen 3.4, Debian GNU/Linux, Linux 2.6.31-1-xen-amd64" {
	insmod lvm
	insmod ext2
	set root=(vg0-boole-root)
	search --no-floppy --fs-uuid --set 54ccee0d-3455-43dc-af2e-e2bb3940776a
	multiboot /boot/xen-3.4-amd64.gz noreboot
	module /boot/vmlinuz-2.6.31-1-xen-amd64 root=/dev/mapper/vg0-boole--root ro
	module /boot/initrd.img-2.6.31-1-xen-amd64
}

03.jpg, 07.jpg: Dropped into the BusyBox shell.

08.jpg, 09.jpg: mount output (nothing on /root); ls -l /dev/mapper/ (only
control and vg0-boole--swap (254,0)); lvm vgchange -ay; ls -l
/dev/mapper/ (control, vg0-boole--data (254,2), vg0-boole--root (254,1),
vg0-boole--swap (254,0).
> >                                             If I manually run ``lvm
> > vgchange -ay'' the missing LVs appear, root (254,1) and data
(254,2).
> > How would I manually resume the booting process from here?
> 
> mount $dev /root
> CTRL-D
> 
> should do it.
10.jpg: fstype vg0-boole-root (ext3); mount /dev/mapper/vg0-boole--root
/root (failed -- no such file or directory?!).
> > The exactly same arrangement boots without any problems with a non-Xen
> > kernel.  This is a up-to-date Debian testing, by the way.  Help?
> 
> I doubt that.
11.jpg: successful boot without Xen; here the device number are
different: vg0-boole--data (254,2), vg0-boole--root (254,0),
vg0-boole--swap (254,1) -- root has minor zero instead of one, and swap
vice versa?!


Regards,
 Thomas
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 197 bytes
Desc: Digital signature
URL:
<http://lists.alioth.debian.org/pipermail/pkg-xen-devel/attachments/20091028/155d76f8/attachment.pgp>