Re: [Xen-devel] current xen/stable 2.6.32.9 failed upgrade from 2.6.31.6

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sat, Mar 06, 2010 at 12:58:33PM +0100, Josip Rodin wrote:
> Hi,
> 
> I updated the hypervisor from 3.4.0 to 3.4.3rc3, which seemed to go well
> because it seems to behave as usual, but the dom0 kernel update from an
> earlier (pre-2009-11-30) xen/master snapshot based on 2.6.31.6 didn't -
> as soon as it starts, it just instantly reboots, or if noreboot is passed,
> it gets stuck, with absolutely nothing on the screen.
> 

So the 2009-11-30 xen/master 2.6.31.6 dom0 kernel works with Xen 3.4.3rc3 
hypervisor,
but when you update the dom0 kernel to current xen/master 2.6.31.6, it crashes? 

> I tried adding loglvl=all guest_loglvl=all sync_console console_to_ring
> to the hypervisor options, and console=hvc0 earlyprintk=xen initcall_debug
> to the kernel options, to no avail. The hypervisor showed the sync console
> warning, but the dom0 kernel didn't change its behaviour.
> 

You should set up a serial console so you can capture the boot/error logs,
and we can analyze them to troubleshoot the problem, see:

http://wiki.xensource.com/xenwiki/XenSerialConsole
http://wiki.xensource.com/xenwiki/XenParavirtOps

-- Pasi


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