I'm trying to create an x86 64 bit guest machine on an old Debian Lenny x86 64 bit hypervisor using HVM. The physical CPU is a first generation Intel i7 with VT-x support. Xen recognizes the VT-x support with the line (XEN) HVM: VMX enabled when running xm dmesg.
The Xen version according to xm info is 3.2.
I tried with newest installer ISO images of Debian Squeeze (6.0) and Ubuntu Oneiric Ocelot (11.10). The x86 64 bit version freezes the guest system shortly after starting, if I mount the x86 32 bit installer image, everything runs fine.
How can I fix this?
IRC user krt in ##xen on irc.freenode.net recommended setting acpi = 0 in the guest configuration file. This did not solve this problem.
Here is the guest configuration file I'm currently using:
arch = 'amd64' device_model = '/usr/lib/xen-default/bin/qemu-dm' # # Kernel + memory size # kernel = '/usr/lib/xen-default/boot/hvmloader' builder = 'hvm' acpi = 0 #xen_platform_pci = 0 memory = 1024 shadow_memory = 8 # # Disk device(s). # #root = '/dev/sda2 ro' disk = [ 'file:/var/lib/libvirt/images/ubuntu-11.10-desktop-amd64.iso,xvdc:cdrom,r', 'phy:/dev/system/fraumann-root,xvda,w', ] # boot on floppy (a), hard disk (c) or CD-ROM (d) # default: hard disk, cd-rom, floppy boot = 'dc' # # Hostname # name = 'fraumann' # # Networking # vif = [ 'ip=126.96.36.199,mac=00:16:3E:9F:3C:31' ] # IP changed for the public sdl = 0 vnc = 1 vnclisten = 'localhost' vncconsole = 1 stdvga = 0 serial = 'pty' usbdevice = 'tablet' # # Behaviour # on_poweroff = 'destroy' on_reboot = 'restart' on_crash = 'restart' vcpus = 4 extra = 'xencons=tty1'