From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@novell.com>
Subject: RE: Xen-unstable panic: FATAL PAGE FAULT
Date: Wed, 01 Sep 2010 09:05:50 +0100
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To: MaoXiaoyun <tinnycloud@hotmail.com>
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>>> On 01.09.10 at 09:17, MaoXiaoyun <tinnycloud@hotmail.com> wrote:

> As I go through the chunk merge code in free_heap_pages, one thing I'd =
like=20
>=20
> to mention is, previously, I printted out all domain pages when =
allocated,
>=20
> and I found the order in assgin_pages in=20
> /xen-4.0.0/xen/common/page_alloc.c:1087,
>=20
> the order either be 0, or 9, and later I know that is because domain =
U=20
> populate physmap
>=20
> 2M Bytes everytime.
>=20
> =20
>=20
> And here in the while statement,  the order is compare with MAX_ORDER, =
which=20
> is 20.

Are you sure it's 20? MAX_ORDER should be 18 for x86 afaict.

Jan