Re: [Xen-users] Black screen with 2.6.31 pv_ops

[Gémes Géza <geza@xxxxxxxxxxx>]

Christopher Schramm írta:
> Hi,
>
> I'm running Debian squeeze with a 2.6.31 kernel which I would like to
> use as dom0 in xen.
Have you got your kernel sources from
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git ?
The kernel.org sources don't work yet as Dom0.
(I do run 2.6.31 from Jeremy's git tree with xen-3.4.1 on a lenny test 
machine)
Geza
> The kernel is configured with
>
> CONFIG_PARAVIRT_GUEST=y
> CONFIG_PARAVIRT=y
> CONFIG_PARAVIRT_CLOCK=y
> CONFIG_XEN=y
> CONFIG_XEN_MAX_DOMAIN_MEMORY=32
> CONFIG_XEN_SAVE_RESTORE=y
> CONFIG_XEN_BLKDEV_FRONTEND=m
> CONFIG_NETXEN_NIC=m
> CONFIG_XEN_NETDEV_FRONTEND=m
> CONFIG_XEN_KBDDEV_FRONTEND=y
> CONFIG_HVC_DRIVER=y
> CONFIG_HVC_IRQ=y
> CONFIG_HVC_XEN=y
> CONFIG_XEN_FBDEV_FRONTEND=y
> CONFIG_XEN_BALLOON=y
> CONFIG_XEN_SCRUB_PAGES=y
> CONFIG_XEN_DEV_EVTCHN=y
> CONFIG_XENFS=m
> CONFIG_XEN_COMPAT_XENFS=y
> CONFIG_XEN_SYS_HYPERVISOR=y
>
> I've built xen.gz and xen-tools from current xen-unstable git version.
>
> Important part of grub entry looks like this:
>
> multiboot /boot/xen.gz
> module    /boot/vmlinuz-2.6.31.6
> root=UUID=64f4bee7-01c8-4db2-949e-1728524f35aa ro  quiet console=tty0
> module    /boot/initrd.img-2.6.31.6
>
> The problem: Xen starts up without problems but when dom0 should appear
> there's nothing but a black screen. I'm not sure, but it doesn't seem
> like the machine is working. Also it's not reachable via network.
>
> Since the motherboard hasn't got a serial port, I cannot use Xen's
> debugging. Well, I got a USB -> Serial adapter, but I wouldn't expect to
> get it running on Xen. Is it possible to not show the dom0 but keep
> getting Xen's output?
>
> Or am I missing something? Is my setup broken by design?
>
>
> Thanks for any hints
>
> Christopher Schramm
>
>
>
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