Comment 2 for bug 71348

I placed myself in same config as Dmitriy Ivanov, I disabled my HyperThreading on my p4, and managed to run a 2nd domU, but more interesting I managed a third DomU successfully !!!!

Here is my domU config (generated with the xen-tools packages) :

kernel = '/boot/xen0-linux-2.6.17-6-generic-xen0'
ramdisk = '/boot/xen0-linux-2.6.17-6-generic-xen0.initrd.img'
memory = '256'
root = '/dev/sda1 ro'
disk = [ 'phy:data/xen2-disk,sda1,w',
            'phy:data/xen2-swap,sda2,w' ] # LVM on dom0
name = 'xen3'
vif = [ 'bridge=xenbr0' ]
vcpus = 1
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'

My dom0 uses the edgy xen packages + xen-tools + libc6-xen