linux KVM VM freezing on SMP kernel

Hi to all, i got a problem whit the linux guest machine later upgrade a proxmoxm 1.5
the pveversion -v is :
pve-manager: 1.5-10 (pve-manager/1.5/4822)
running kernel: 2.6.32-2-pve
proxmox-ve-2.6.32: 1.5-7
pve-kernel-2.6.32-2-pve: 2.6.32-7
pve-kernel-2.6.18-2-pve: 2.6.18-5
pve-kernel-2.6.24-8-pve: 2.6.24-16
qemu-server: 1.1-16
pve-firmware: 1.0-5
libpve-storage-perl: 1.0-13
vncterm: 0.9-2
vzctl: 3.0.23-1pve11
vzdump: 1.2-5
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.4-1
ksm-control-daemon: 1.0-3

I have try install a debian 5.0.5(lenny) last relase from a network install and the last stable relase of centos but bot installation is stop in a random point, now I try to install a Windows machine (2003-srv-ent) for see if got the same problem, some subgestion?

best regard