[Xen-devel] xen-unstable on HP dc7800 simply reboots

[John Byrne <john.l.byrne@xxxxxx>]

I am trying to boot xen-unstable 16157 x86_64 on a HP dc7800 with the 
E6750 CPUs and Xen simply reboots with no output of any kind after the 
grub loading info:
  Booting 'XEN'

root (hd0,5)
 Filesystem type is ext2fs, partition type 0x83
kernel /boot/xen.gz console=com1 com1=115200,8n1 loglvl=all
   [Multiboot-elf, <0x100000:0x101620:0x649e0>, shtab=0x266078, 
entry=0x100000]
module /boot/vmlinuz-xen 
root=/dev/disk/by-id/scsi-SATA_Hitachi_HDS7216_PVD301Z
9R3DSTK-part6 resume=/dev/sda5 splash=silent showopts
   [Multiboot-module @ 0x267000, 0x508170 bytes]
module /boot/initrd-xen
   [Multiboot-module @ 0x770000, 0x125e200 bytes]

SLES 10 SP1 Xen works fine on the box. I've tried disabling the VT/VT-d 
features of the box; serial console; and building a debug version of 
Xen, hoping it would output something before it died: no joy.
Does anyone know what is wrong or can tell me how to go about debugging 
this? The dmesg output from booting the Ubuntu 2.6.22-14-server kernel 
is attach in the hope that it will provide some useful information.
Thanks,

John Byrne

dmesg.txt
Description: Text document

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