Re: [Xen-users] Xen + pv_ops + migration + hotadd vcpus

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Wed, Nov 23, 2011 at 10:11:45PM +0100, Tim Evers wrote:
> Hope I don't annoy you but I'm totally stuck.
> 

Hello,

I added xen-devel to CC list..

> Here is my question to all xen users:
> 
> Is there anyone who has a running pv_ops kernel (like 2.6.32.x or
> 2.6.35.x or 2.6.38.x or 3.x) which supports the following operations
> without a crash:
> 
> - boot with maxvcpus > vcpus
> - then migrate from one dom0 to another
> - raise the vcpus (via xm vcpu-set)
> - take the cpus online in the domu
> 
> either on xen 4.0.x or 4.1.x with pv_ops dom0 OR patch dom0 (like
> 2.6.26.x) with or without pv_spinlock enabled.
> 

Please be more exact about your kernel versions:
- What dom0 kernel version? 
- What domU kernel version? 
- And what Xen version? 

> While I've been doing this for more than a year now with a 2.6.26 kernel
> with xen patches without one single crash, I've not been able to do it
> in any way with newer pv_ops kernel.
> 
> Taking the cpus online crashes the domu whith "cpu stuck" messages and
> silly timestamps like 10,000s.
> 
> Anyone, please :)
> 
> Regards,
> 
> Tim
> 

-- Pasi


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