[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Joshua West
Sent: Friday, January 18, 2008 4:06 PM
To: Keir Fraser
Cc: Kurt Hackel; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Migrate/Save of 32-bit domU Broken
on Xen 3.1.2
Dang, doesn't work in Xen 3.1.3-rc1 (like you said/expected), with or
without Kurt's patches.
Hmm... I thought 32-bit paravirtualized domU's on 64-bit dom0's were
supported in Xen 3.1.x? Or am I mistaken?
Perhaps standard features such as start/shutdown/pause of 32-bit PV
domU's on 64-bit dom0's are supported, but not the more advanced
management features like save and migrate - and I was just
And of course... the final question that all developers hate... when
s/could one _hope_ (not expect!) to see save/migrate functionality of
32-bit PV domU's on 64-bit dom0's? :-D
Our whole reason for moving to 64-bit dom0's was to utilize 32GB of
memory, instead of the 16GB limitation on 32-bit PAE dom0's. We can't
convert all of our virtual machines (100+) to 64-bit linux as its too
much work and some actually have to be 32-bit due to vendor supplied
software (Oracle, Zimbra, etc). I suppose we'll wait to move
until [live] migration is available, as its used quite
frequently in our
Thanks for all of your help Keir and Kurt.
Keir Fraser wrote:
Looking at the issues that need to be handled to support
this, it cannot be
expected to work.
On 18/1/08 22:13, "Joshua West" <jwest@xxxxxxxxxxxx> wrote:
Ahh. Well, I'm building xen-3.1.3-rc1 right now and I'll
see how that goes.
Keir, have you seen this issue before? Where one cannot
a 32-bit domU on a 64-bit dom0? Or is this expected to
work and just
doesn't go well for me?
Keir Fraser wrote:
On 18/1/08 22:05, "Joshua West" <jwest@xxxxxxxxxxxx> wrote:
Just to make sure the patches aren't the cause of this new error
message, I'm going to see what happens with Xen
3.1.3-rc1 w/o patches.
Kurt, Keir, everybody else... any ideas as to why "xm
save" (and thus
"xm migrate") of 32-bit domU's does not work on 64-bit
The extent of the patches that Kurt posted indicate its
anybody found this to be successful in the past?
pretty unlikely to
work without considerable code modification. I guess
those patches aren't
quite fully baked yet, unfortunately, or haven't been
written with your
precise case in mind.
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