[Fedora-xen] 4.2.0-rc2 available to test

[Konrad Rzeszutek Wilk]

On Fri, Aug 17, 2012 at 12:24:16PM -0400, Konrad Rzeszutek Wilk wrote:
> On Fri, Aug 17, 2012 at 06:48:04PM +0300, Pasi Kärkkäinen wrote:
> > On Fri, Aug 17, 2012 at 09:44:56AM -0500, W. Michael Petullo wrote:
> > > >> I have done a temporary build of 4.2.0-rc2 for testing which is at
> > > >> http://koji.fedoraproject.org/koji/taskinfo?taskID=4386920
> > > >> This also adds the efi hypervisor back in for x86_64.
> > >  
> > > > Note to other people: fedora kernels still don't have xen dom0 EFI patches included,
> > > > mainly because dom0 EFI patches are not yet ported to pvops or merged to upstream Linux.
> > > > 
> > > > So actually testing xen.efi hypervisor on UEFI systems is a bit tricky atm..
> > > > (you need to manually build a kernel based on the suse xenlinux sles11sp2 or opensuse patches).
> > > 
> > > I have tried the 4.2.0-rc packages on three machines: one with an AMD Athlon X2,
> > > one with an AMD FX 4170 [1], and a MacBook with a Core 2 Duo.
> > > 
> > > The first machine works fine.
> > > 
> > > The FX 4170 and MacBook are unable to load Dom0. I see Xen print its
> > > boot messages, but the machines spontaneously reboot before Dom0 prints
> > > any output.
> 
> Is the dom0 different? The 3.5 has an issue where on certain machines it crashes
> (3.5.3 should have the proper fix).

Pfff.. Found the issue. If you boot with 'xsave=off' on the hypervisor line it boots.

It looks to be a Fedora kernel issue thought - when I booted a mainline kernel
I did not hit this.