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Re: [Xen-devel] The right way to get an actualxen-enabledkernel-source t

To: "Rustedt, Florian" <Florian.Rustedt@xxxxxxxxxxx>
Subject: Re: [Xen-devel] The right way to get an actualxen-enabledkernel-source tree?
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Fri, 6 Mar 2009 15:33:40 +0200
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On Fri, Mar 06, 2009 at 02:14:22PM +0100, Rustedt, Florian wrote:
> Thanks again ;)
> 
> Reason for 2.6.28 is, that i was told by xen-users that 2.6.27 from SLES is 
> buggy and after tests, i could approve that.
> Additionally, i was told that 2.6.28 with xen support is stable. 
> Unfortunately, nobody could tell me until now, where i could get that 
> mysterious 2.6.28-xen-kernel, so that's why i am asking now here..
> 
> As i am using gentoo, i would need a source-tree to compile the kernel for 
> me, prebuild binaries wont be from help.
> I didn't find any not sles-xen-kernel-source (src-rpm) in higher versions, 
> p.e. by redhat to "steel" this ;) 
> 
> I tried the "lenny"-way, but debian makes some strange things in the 
> kernel-source packages that i don't understand in result as non-debianist, so 
> i went back again to the roots and wanted to take the good old vanilla-source 
> and patch it ;)
> 
> What is your advice concerning the stability of jeremys pv_ops enabled 
> git-sources concerning stability?
> 
> An absolute no-go, or is it near stable, just waiting for some last checks?
>

pv_ops dom0 is still under development, and right now (as of yesterday)
starting to work.. for me :) 

If you need stable dom0 kernel right now you need to go for 2.6.18 based tree.. 

Or then just use for example RHEL5 or CentOS5, they contain stable Xen
packages/kernels based on 2.6.18 tree with latest drivers and bugfixes added.

-- Pasi
 
> Cheers, Florian
> 
> > -----Ursprüngliche Nachricht-----
> > Von: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag von 
> > Pasi Kärkkäinen
> > Gesendet: Freitag, 6. März 2009 14:03
> > An: Rustedt, Florian
> > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> > Betreff: Re: [Xen-devel] The right way to get an 
> > actualxen-enabledkernel-source tree?
> > 
> > On Fri, Mar 06, 2009 at 01:05:04PM +0100, Rustedt, Florian wrote:
> > > Thanks a lot for the fast answer and yes, i need it for dom0!
> > > 
> > > Does this "pv_ops"-way mean, that i would have to use an 
> > not productional usable kernel?
> > > So perhaps it would be better for me, to patch a kernel 
> > with the 2.6.18 patchset?
> > > 
> > 
> > Current pv_ops dom0 development is tracking 2.6.29 (and 
> > 2.6.30 later), so that's what's available atm.
> > 
> > There are no recommended dom0 patches for 2.6.28 that I'm aware of.
> > 
> > Other option is to use Xensource xenlinux patches for 2.6.18, 
> > or then forward-port of those to 2.6.27 by novell/sles/suse people. 
> > 
> > http://xenbits.xen.org/linux-2.6.18-xen.hg
> > http://xenbits.xen.org/ext/linux-2.6.27-xen.hg
> > 
> > I'd recommend you to use a distribution that already includes 
> > dom0 capable kernel out-of-the-box.
> > 
> > -- Pasi
> > 
> > > If it is usable:
> > > As i never used git before, could you please provide me the 
> > commandline to use it for a 2.6.28 kernel?
> > > 
> > > Is it like patching in that way:
> > > 1. download 2.6.28(.rcxx) vanilla-sources 2. untar and go to that 
> > > directory 3. do "git something" now?
> > > 
> > > Cheers, Florian
> > > 
> > > > -----Ursprüngliche Nachricht-----
> > > > Von: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> > > > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] Im Auftrag 
> > von Pasi 
> > > > Kärkkäinen
> > > > Gesendet: Freitag, 6. März 2009 12:47
> > > > An: Rustedt, Florian
> > > > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
> > > > Betreff: Re: [Xen-devel] The right way to get an actual 
> > > > xen-enabledkernel-source tree?
> > > > 
> > > > On Fri, Mar 06, 2009 at 12:22:12PM +0100, Rustedt, Florian wrote:
> > > > > Hello list,
> > > > > 
> > > > > I need a xen-kernel in version 2.6.28, but can't find any
> > > > hint, how i can come to this point?
> > > > > AFAIK the xensources stopped with 2.6.18?
> > > > > 
> > > > > So what'S actual the way to get a vanilla-kernel and patch
> > > > it with xen?
> > > > > 
> > > > 
> > > > Xen domU support has been in vanilla Linux kernels since
> > > > 2.6.23 (pv_ops domU). 
> > > > 
> > > > pv_ops based dom0 support is currently under development and it's 
> > > > planned to get merged to 2.6.30 vanilla kernel.
> > > > 
> > > > See: http://wiki.xensource.com/xenwiki/XenParavirtOps
> > > > 
> > > > latest development/unstable pv_ops Linux tree with dom0 patches:
> > > > http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=sho
> > > > rtlog;h=xen/dom0/hackery
> > > > 
> > > > -- Pasi
> > > > 
> > 

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