Hi, i had the same problem and found a bug report on https://bugzilla.redhat.com/show_bug.cgi?id=250299 . My solution for Debian 4.0, for others who hit this problem:
apt-get source grub apt-get build-dep grub cd grub-0.97/ cp -a stage2/common.c stage2/common.c.original vi stage2/common.c diff stage2/common.c.original stage2/common.c 145c145,146 < unsigned long cont, memtmp, addr; --- > unsigned long memtmp, addr; > volatile unsigned long cont; debian/rules binary dpkg -i ../grub_0.97-27_i386.deb grub-install /dev/sda grub-install /dev/sdb After reboot all memory is seen by the xen hypervisor. -- greetings eMHa
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