RE: [Xen-users] howto build xen from source with existing config?

["Philippe Trolliet" <p.trolliet@xxxxxxxxxxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Petersson,
> Mats
> Sent: Freitag, 25. Mai 2007 12:06
> To: Philippe Trolliet; Xen-Users
> Subject: RE: [Xen-users] howto build xen from source with existing
> config?
>
>
>
>
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> > Philippe Trolliet
> > Sent: 25 May 2007 09:09
> > To: Xen-Users
> > Subject: [Xen-users] howto build xen from source with existing config?
> >
> > hi,
> > i´m using fedora core 6 and want to build xen 3.1 from source
> > for the 2.6.20
> > kernel. how can i build xen with the existing kernel-config
> > from /boot (e.g.
> > config-2.6.20-1.2948.fc6xen) and an installed kernel-devel
> > (source) package?
> > is it good to use this config or should i create a new one?
>
> You should be able to use the config for another kernel, as long
> as the config is for the same base-level kernel (e.g. it may not
> work to use a 2.6.18 config to build a 2.6.20 kernel, and
> probably even worse the other way around).

ok. i want to use 2.6.20 config for a 2.6.20 kernel.
i would never use a 2.6.18 config for a 2.6.20 kernel or vice versa.
but how and where can i tell the compile process to use the config?
i searched the diferent makefiles...

>
>
> > i searched the net and haven´t found any howto to build xen
> > from source with
> > newer kernel versions and existing config files.
>
> As stated in a post yesterday, the best way to achieve this is to
> wait for one of the distributors to do the hard work of figuring
> out how to adopt the kernel patches from Xen into the next
> version of the kernel - because that's what you'll have to do.
>
> However, if you want to go with the current FC6 Dom0 kernel, and
> use the new 3.1 tools and Xen Hypervisor, that should work ok.

i want to change from the fedora core 6 xen 3.0.3 version to 3.1 because the
hypervisor crashed. first the domU crashed when i tried to compile postfix
in it. but not just when i was compiling. then the dom0 crashed and i had to
turn off the machine to restart it. i got the message: "BUG: soft lockup
detected on cpu#0" with a stack trace. i posted the error on bugzilla. i´m
not the only one with that problem.

do you mean that it´s better to use the standard way for xen? (download xen
source and just execute make world. then use the 2.6.18 kernel builded by
xen 3.1.)

i´ll just try that and let´s hope that it works... in case that it wouldn´t,
i have to change back to FC4.

regards
philippe

>
> --
> Mats
> > in the users documentation i found sth like make ARCH=xen
> > oldconfig but this
> > doesn´t work. the README couldn´t help me too.
> > please give detailed instructions.
> > thank you
> >
> > regards
> > philippe
> >
> >
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> >
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> >
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>
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