Xen users - Feb 2006 - Can''t suspend SMP guests without CONFIG_HOTPLUG_CPU

Hi at all!
I have a problem trying to migrate a DomU from a server to an other when
is defined vcpus = 2 or more in DomU.
I am using Xen 3.0.1 upon a AMD dual opteron with Debian distro.
In Dom0 I see 4 cpu, so I can assign more than one vcpu for every DomU.
But when I give the command to migrate, in the DomU I receive in console
the message:
Can''t suspend SMP guests without CONFIG_HOTPLUG_CPU

I also tryed to enable in .config the option CONFIG_HOTPLUG_CPU=y but
without success, the command "make linux-2.6-xen-config
CONFIGMODE=menuconfig" can''t enable the option.

Someone found a problem like this? 

Regards

      Marco Natali


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