[Xen-users] Not enough RAM for domain 0

[nhgxfjijdrcd@xxxxxxxxxxxxxx]

Hi xen users,

Just "yum"d Xen-3 with 2.6.13-1.1532_FC4xen0 kernel onto a Fedora Core 4 
box.
Non-xen boot into the following image works.

Grub stanza is as follows:

title Fedora Core (2.6.13-1.1532_FC4xen0)
        root (hd0,0)
        kernel /xen.gz dom0_mem=524288 noreboot
        module /vmlinuz-2.6.13-1.1532_FC4xen0 ro root=/dev/vg0/base
        module /initrd-2.6.13-1.1532_FC4xen0.img

Boot into xen fails.  I've tried adjusting dom0_mem up, down, not 
specifying it, specifying it with k/m/g, etc.  Each time the error 
reported is
  "Panic on CPU0"
  "Not enough RAM for domain 0 allocation."
  "Reboot in 5 seconds"

System is Dell Latitude 600 w/ 2G ram, and has run a xen3 setup before, 
so I'm pretty sure it's not a hardware problem.
Any hints on how to proceed?

All help greatly appreciated!

TIA,
Mike Wright

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