2.6.28 64-bit domU not booting

[Valtteri Kiviniemi <valtteri.kiviniemi@dataproof.fi>]

Hi,

Im using vanilla 2.6.28 kernel from kernel.org and when I try to boot my 
  domU with it, it just disappears without any error or warning.

I have double checked that I have all the necessary options enabled on 
my kernel config.

xend.log says following:

[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) 
XendDomainInfo.create(['vm', ['name', 'dataproof'], ['memory', '256'], 
['on_poweroff', 'destroy'], ['on_reboot', 'restart'], ['on_crash', 
'restart'], ['vcpus', '1'], ['on_xend_start', 'ignore'], 
['on_xend_stop', 'ignore'], ['image', ['linux', ['kernel', 
'/boot/vmlinux-2.6.28'], ['root', '/dev/xvda1 ro'], ['args', 
'xencons=hvc0 console=hvc0']]], ['device', ['vbd', ['uname', 
'phy:/dev/virtual/dataproof'], ['dev', 'xvda1'], ['mode', 'w']]], 
['device', ['vbd', ['uname', 'phy:/dev/virtual/dataproofswap'], ['dev', 
'xvda2'], ['mode', 'w']]], ['device', ['vif', ['bridge', 'xenbr0'], 
['mac', '00:16:3e:50:c7:43']]]])
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) 
XendDomainInfo.constructDomain
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) Balloon: 2949932 KiB 
free; need 2048; done.
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) Adding Domain: 58
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) 
XendDomainInfo.initDomain: 58 256
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) 
_initDomain:shadow_memory=0x0, memory_static_max=0x10000000, 
memory_static_min=0x0.
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) Balloon: 2949924 KiB 
free; need 263168; done.
[2009-01-05 13:16:31 8052] INFO (__init__:1072) buildDomain os=linux 
dom=58 vcpus=1
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) domid          = 58
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) memsize        = 256
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) image          = 
/boot/vmlinux-2.6.28
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) store_evtchn   = 1
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) console_evtchn = 2
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) cmdline        = 
root=/dev/xvda1 ro xencons=hvc0 console=hvc0
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) ramdisk        =
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) vcpus          = 1
[2009-01-05 13:16:31 8052] DEBUG (__init__:1072) features       =
[2009-01-05 13:16:32 8052] INFO (__init__:1072) createDevice: vbd : 
{'uuid': '24753641-db04-731b-adc1-ed1773bf956d', 'bootable': 1, 
'driver': 'paravirtualised', 'dev': 'xvda1', 'uname': 
'phy:/dev/virtual/dataproof', 'mode': 'w'}
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'virtual-device': '51713', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1', 'backend': 
'/local/domain/0/backend/vbd/58/51713'} to 
/local/domain/58/device/vbd/51713.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'domain': 'dataproof', 'frontend': '/local/domain/58/device/vbd/51713', 
'uuid': '24753641-db04-731b-adc1-ed1773bf956d', 'dev': 'xvda1', 'state': 
'1', 'params': '/dev/virtual/dataproof', 'mode': 'w', 'online': '1', 
'frontend-id': '58', 'type': 'phy'} to /local/domain/0/backend/vbd/58/51713.
[2009-01-05 13:16:32 8052] INFO (__init__:1072) createDevice: vbd : 
{'uuid': 'a8053c53-719a-e7a7-3389-92cd1610a1f8', 'bootable': 0, 
'driver': 'paravirtualised', 'dev': 'xvda2', 'uname': 
'phy:/dev/virtual/dataproofswap', 'mode': 'w'}
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'virtual-device': '51714', 'device-type': 'disk', 'protocol': 
'x86_64-abi', 'backend-id': '0', 'state': '1', 'backend': 
'/local/domain/0/backend/vbd/58/51714'} to 
/local/domain/58/device/vbd/51714.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'domain': 'dataproof', 'frontend': '/local/domain/58/device/vbd/51714', 
'uuid': 'a8053c53-719a-e7a7-3389-92cd1610a1f8', 'dev': 'xvda2', 'state': 
'1', 'params': '/dev/virtual/dataproofswap', 'mode': 'w', 'online': '1', 
'frontend-id': '58', 'type': 'phy'} to /local/domain/0/backend/vbd/58/51714.
[2009-01-05 13:16:32 8052] INFO (__init__:1072) createDevice: vif : 
{'bridge': 'xenbr0', 'mac': '00:16:3e:50:c7:43', 'uuid': 
'42ff0ad4-e5fb-4dc1-0436-05580093af2b'}
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'mac': '00:16:3e:50:c7:43', 'handle': '0', 'protocol': 'x86_64-abi', 
'backend-id': '0', 'state': '1', 'backend': 
'/local/domain/0/backend/vif/58/0'} to /local/domain/58/device/vif/0.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'bridge': 'xenbr0', 'domain': 'dataproof', 'handle': '0', 'uuid': 
'42ff0ad4-e5fb-4dc1-0436-05580093af2b', 'script': 
'/etc/xen/scripts/vif-bridge', 'mac': '00:16:3e:50:c7:43', 
'frontend-id': '58', 'state': '1', 'online': '1', 'frontend': 
'/local/domain/58/device/vif/0'} to /local/domain/0/backend/vif/58/0.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) Storing VM details: 
{'on_xend_stop': 'ignore', 'shadow_memory': '0', 'uuid': 
'd7774355-4b1e-18d5-7177-41dc019dbe9c', 'on_reboot': 'restart', 
'start_time': '1231154192.25', 'on_poweroff': 'destroy', 
'on_xend_start': 'ignore', 'on_crash': 'restart', 'xend/restart_count': 
'0', 'vcpus': '1', 'vcpu_avail': '1', 'image': "(linux (kernel 
/boot/vmlinux-2.6.28) (args 'root=/dev/xvda1 ro xencons=hvc0 
console=hvc0') (notes (HV_START_LOW 18446603336221196288) (FEATURES 
'!writable_page_tables|pae_pgdir_above_4gb') (VIRT_BASE 
18446744071562067968) (GUEST_VERSION 2.6) (PADDR_OFFSET 0) (GUEST_OS 
linux) (HYPERCALL_PAGE 18446744071564201984) (LOADER generic) 
(SUSPEND_CANCEL 1) (PAE_MODE yes) (ENTRY 18446744071568527872) 
(XEN_VERSION xen-3.0)))", 'name': 'dataproof'}
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) Storing domain details: 
{'console/ring-ref': '1934400', 'image/entry': '18446744071568527872', 
'console/port': '2', 'store/ring-ref': '1934401', 'image/loader': 
'generic', 'vm': '/vm/d7774355-4b1e-18d5-7177-41dc019dbe9c', 
'control/platform-feature-multiprocessor-suspend': '1', 
'image/hv-start-low': '18446603336221196288', 'image/guest-os': 'linux', 
'image/virt-base': '18446744071562067968', 'memory/target': '262144', 
'image/guest-version': '2.6', 'image/pae-mode': 'yes', 'console/limit': 
'1048576', 'image/paddr-offset': '0', 'image/hypercall-page': 
'18446744071564201984', 'image/suspend-cancel': '1', 
'cpu/0/availability': 'online', 'image/features/pae-pgdir-above-4gb': 
'1', 'image/features/writable-page-tables': '0', 'console/type': 
'xenconsoled', 'name': 'dataproof', 'domid': '58', 'image/xen-version': 
'xen-3.0', 'store/port': '1'}
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'protocol': 'x86_64-abi', 'state': '1', 'backend-id': '0', 'backend': 
'/local/domain/0/backend/console/58/0'} to 
/local/domain/58/device/console/0.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) DevController: writing 
{'domain': 'dataproof', 'frontend': '/local/domain/58/device/console/0', 
'uuid': '4ebfb3e4-79bf-27c3-0d58-acf2e0904e0f', 'frontend-id': '58', 
'state': '1', 'location': '2', 'online': '1', 'protocol': 'vt100'} to 
/local/domain/0/backend/console/58/0.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) 
XendDomainInfo.handleShutdownWatch
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) Waiting for devices vif.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) Waiting for 0.
[2009-01-05 13:16:32 8052] DEBUG (__init__:1072) hotplugStatusCallback 
/local/domain/0/backend/vif/58/0/hotplug-status.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) hotplugStatusCallback 
/local/domain/0/backend/vif/58/0/hotplug-status.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) hotplugStatusCallback 1.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) Waiting for devices vscsi.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) Waiting for devices vbd.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) Waiting for 51713.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) hotplugStatusCallback 
/local/domain/0/backend/vbd/58/51713/hotplug-status.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) hotplugStatusCallback 1.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) Waiting for 51714.
[2009-01-05 13:16:33 8052] DEBUG (__init__:1072) hotplugStatusCallback 
/local/domain/0/backend/vbd/58/51714/hotplug-status.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) hotplugStatusCallback 
/local/domain/0/backend/vbd/58/51714/hotplug-status.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) hotplugStatusCallback 1.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices irq.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices vkbd.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices vfb.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices 
console.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for 0.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices pci.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices 
ioports.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices tap.
[2009-01-05 13:16:34 8052] DEBUG (__init__:1072) Waiting for devices vtpm.
[2009-01-05 13:16:34 8052] INFO (__init__:1072) Domain dataproof (58) 
unpaused.
[2009-01-05 13:16:34 8052] WARNING (__init__:1072) Domain has crashed: 
name=dataproof id=58.

and then it loops for a while until:

[2009-01-05 13:16:35 8052] ERROR (__init__:1072) VM dataproof restarting 
too fast (1.637592 seconds since the last restart).  Refusing to restart 
to avoid loops.

Any suggestions?