Re: [Xen-devel] Para-Virt DomU + HVM DomU with xen 4.1.1 & linux 3.0.6 locks up system

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Oct 14, 2011 at 10:00:30AM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Oct 14, 2011 at 02:35:13PM +0100, Anthony Wright wrote:
> > I have xen 4.1.1 running with a 3.0.6 linux kernel, both 32 bit.
> > 
> > If I run 2 x para-virtualized DomUs they run fine. If I run 2 x HVM
> > DomUs they run fine. If I run 1 x para-virtualized and 1 x HVM DomU (it
> > doesn't matter which one is run first & which second), the system locks
> > up just after I start the second DomU.
> 
> Locks up you say? When you launch the second guest, can you
> also run 'while (true); do; xl list; sleep 1; done' to see if the memory
> for Dom0 is going down to unreasonable amount?
> 

Also are you using dom0_mem= for Xen? and did you disable dom0 ballooning?

Try enabling serial console and capturing all the Xen+dom0 console output..
http://wiki.xen.org/xenwiki/XenSerialConsole

-- Pasi


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