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Re: [Xen-devel] pv_ops dom0 and kernel console output problem

To: "Pasi Kärkkäinen" <pasik@xxxxxx>
Subject: Re: [Xen-devel] pv_ops dom0 and kernel console output problem
From: "Todd Deshane" <deshantm@xxxxxxxxx>
Date: Mon, 29 Dec 2008 12:55:42 -0500
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Andrew Lyon <andrew.lyon@xxxxxxxxx>
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Reply-to: deshantm@xxxxxxxxx
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On Mon, Dec 29, 2008 at 12:49 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> On Mon, Dec 29, 2008 at 12:41:48PM -0500, Todd Deshane wrote:
>> > Actually I'm not using serial console at all.. I only have VGA console.
>> >
>> >> Adding the hvc console worked for me, if I recall correctly. We should 
>> >> add that
>> >> to the wiki as well (if it isn't there already).
>> >>
>> >
>> > So you could see the dom0 kernel boot messages on (VGA) console, after Xen
>> > messages?
>> >
>>
>> Actually no. I just tested now. The screen goes blank during the dom0 kernel
>> boot and then shows back up when I get a login: prompt.
>>
>
> Ok. Good to know.
>
>> I have done most of my testing over a serial console and with the serial
>> console it shows up.
>>
>
> So you get both the Xen and dom0 kernel messages on serial console?
>
> It would be nice if you could post your grub/xen/kernel settings.. just to
> have a working reference.
>

title           Xen 3.4-unstable DEBUG/ Ubuntu 8.10, kernel 2.6.28-rc7-tip
root            (hd0,0)
kernel          /boot/xen-3.4-unstable.gz loglvl=all guest_loglvl=all
com1=115200,8n1 console=com1
module          /boot/vmlinuz-2.6.28-rc7-tip root=/dev/sda1 ro
console=hvc0 earlyprintk=xen xencons=ttyS0,115200 pci=nomsi
module          /boot/initrd.img-2.6.28-rc7-tip

The rest of what I have found I have tried to post here:
http://wiki.xensource.com/xenwiki/XenParavirtOps

Hope that helps.

>> Jeremy: would you expect this to work? Were there recent patches that
>> we could be missing?
>>
>
> That would be nice to know too :)
>
> -- Pasi
>



-- 
Todd Deshane
http://todddeshane.net
http://runningxen.com

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