Re: [Xen-devel] [Xen-4.0.0] domU screen corruption on switching consoles

[Arvind R <arvino55@xxxxxxxxx>]

On Mon, Apr 12, 2010 at 6:09 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> On Mon, Apr 12, 2010 at 05:09:29PM +0530, Arvind R wrote:
>> Hi,
>> Got a domU running 2.6.32.3 pvops kernel. This is perfectly fine on dom0
>> (2.6.32.10 pvops) witn xen-3.4rc3 hypervisor.
>>
>
> So the domU is PV (paravirtualized?
>
>> But with xen-4.0.0 hypervisor, the domU screen is unreadably corrupt
>> on switching
>> to xm-console (ctrl-alt-2) and back.
>
> Switching between what? Do you have X running on dom0?
Yes. Accelerated nouveau running fine.

domU has no X - just minimal console based debian-etch with
non-graphical browser and some utilities.

> It's not clear between what you're switching..
>
Switching between the domU VT-console to qemu console (focus on
domU console, ctrl-alt-2(for xm commands to eject, ...)) and back (ctrl-alt-1)
>From corrupt screen, ctrl-alt-2 goes back to xm-console fine as many times
as you want. Using sendkey ctrl-alt-F2 switches to corrupt login screen on
VT-2 of domU. On xen-3.4rc3, all of these work fine.

> Does the domU have pvfb (vfb) graphical framebuffer?
>
Yes. This is what gets corrupted.

>> Blind commands work - like
>> shutdown. The screen
>> remains static and corrupt. Can swicth to xm-console which is fine.
>> Nothing in logs.
>>
>
> -- Pasi
>
>

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