As someone suggested, i upgraded to kernel 2.6.17-xen and also these two packages below which fixed it for me :
xen-hypervisor-3.0-unstable-1-i386 3.0-unstable+hg11292-2 xen-utils-3.0-unstable-1 3.0-unstable+hg11292-2 Steph -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]