From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <jbeulich@novell.com>
Subject: RE: Re: [Xen-users] rebased openSUSE Xen dom0
	 Patches
Date: Wed, 21 Apr 2010 08:04:27 +0100
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>>> "Simon Graham"  04/20/10 6:08 PM >>>
>We now think we've found the problem which seems to be due to the
>following two calls in Linux within mark_rodata_ro():
>
>free_init_pages("unused kernel memory",
>(unsigned long)
>page_address(virt_to_page(text_end)),
>(unsigned long)
>page_address(virt_to_page(rodata_start)));
>free_init_pages("unused kernel memory",
>(unsigned long)
>page_address(virt_to_page(rodata_end)),
>(unsigned long)
>page_address(virt_to_page(data_start)));

This code is not present in 2.6.32.11, so your kernel source tree must =
have extra patches requiring proper Xen equivalents. In particular, our =
tree's version of that change has its Xen counterpart avoid the (pointless =
and perhaps wasteful) aligning to 2Mb boundaries in arch/x86/kernel/vmlinux=
.lds, thus yielding those two calls to free_init_pages() to be no-ops.

Jan