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Re: SOLVED: Re: [Xen-devel] Issue with pv_ops Kernel 2.6.31.6 and Xen [yinghai@xxxxxxxxxx: [PATCH 01/35] x86: fix sci on ioapic 1]



On 02/17/2010 12:33 AM, Pasi Kärkkäinen wrote:
On Tue, Feb 16, 2010 at 01:51:05PM -0800, Jeremy Fitzhardinge wrote:

Question: Is it known when this piece of code will be introduced in the
"pv_ops Kernel tree"?

Hmm.. Jeremy's plans are to re-base the pvops changes that went in
2.6.31.6 onto 2.6.32. The reason being that 2.6.32 has been choosen by
many distributions as their next vehicle for release. The patches being
mostly, if possible, related only to Xen.

The patch I forwarded to you is targetted for 2.6.33 so it would not appear
normally in 2.6.32 tree unles Greg KH choose to back-port it in. Greg is
the maintainer of the 2.6.32 stable tree.

I would recommend you e-mail Greg KH with this e-mail, explain your
situation  and ask him if he wouldn't mind merging the patch in.
Thought you might need to do some of the work yourself
(as in, merge the patch in an earlier kernel) - it seems you already
have done this so hopefully that shouldn't be a problem.

Try it that way, as this way also the distributions will pick up the fix
and you would be able to load any new distro on your box without having
to manually recompile the kernel and such.

Is that one change enough to fix the reported problem?  Can we just
cherry-pick it over?  Or does it need a lot of supporting patches?

Then when Jeremy revs up the xen/next tree to next stable rev (I think
he will do this, not sure?), it will automatically be picked up (if Greg picks 
it up in his tree).

Yes.  At the moment xen/next is based on plain 2.6.32 because that is
also an ancestor version of mainline git development.  Once the 2.6.32
tree basically works (which should be close), then I can merge all the
stable branch changes onto it and call it "xen/stable" or something.

So that means I should try xen/next now? :)

Give it a go. It boots OK for me, and I can start xend. But I get domains hanging in pvgrub; I'm not sure blkback is working properly. Or it could be a tools issue...

    J

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