Fedora xen - Jun 2007 - 32 bit F7 HVM hangs under 64 bit F6 host

All my attempts to install a Fedora 7 HVM under the x86_64 Fedora 6
host I have have gone into 100% cpu use hangs during the install.

Today I tried something new - I installed Fedora Core 6 as an HVM,
then built a repo from the F7 dvd image and updated all the packages.

That actually ran, but it only works if I boot the old Fedora Core 6
kernel. Any attempt to boot any F7 kernel I''ve tried gets far enough
to print:

PCI: PIIX3: Enabling Passive Release on 0000:00:01.0

then it is hung in the same ol 100% cpu usage state.

Anyone know what is happening right there (or right after there)?
Any good kernel boot parameters to try?

On Tue, Jun 19, 2007 at 07:14:08PM +0000, Tom Horsley
wrote:
> All my attempts to install a Fedora 7 HVM under the x86_64 Fedora 6
> host I have have gone into 100% cpu use hangs during the install.
> 
> Today I tried something new - I installed Fedora Core 6 as an HVM,
> then built a repo from the F7 dvd image and updated all the packages.
> 
> That actually ran, but it only works if I boot the old Fedora Core 6
> kernel. Any attempt to boot any F7 kernel I''ve tried gets far
enough
> to print:
> 
> PCI: PIIX3: Enabling Passive Release on 0000:00:01.0
> 
> then it is hung in the same ol 100% cpu usage state.
> 
> Anyone know what is happening right there (or right after there)?
The GA  baremetal kernel was screwed up with last minute dynamic tick
patches which make it impossible to boot under Xen HVM. 
> Any good kernel boot parameters to try?
Use the paravirt kernel instead.

Dan.
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On Tue, 19 Jun 2007 20:27:41 +0100
"Daniel P. Berrange" <berrange@redhat.com> wrote:
> > kernel. Any attempt to boot any F7 kernel I''ve tried gets far
enough
> > to print:
> > 
> > PCI: PIIX3: Enabling Passive Release on 0000:00:01.0
> > 
> > then it is hung in the same ol 100% cpu usage state.
> > 
> > Anyone know what is happening right there (or right after there)?  
> 
> The GA  baremetal kernel was screwed up with last minute dynamic tick
> patches which make it impossible to boot under Xen HVM. 
> 
> > Any good kernel boot parameters to try?  
> 
> Use the paravirt kernel instead.
Does that mean just run the kernel-xen in the HVM? Or does it
mean do a paravirt install of F7? (The paravirt install is
kinda difficult with the FC6 host still being xen 3.0.3 and
64 bit 3.0.3 not knowing how to talk down to a 32 bit VM :-).

Though running the FC6 kernel seems to work OK for now. Eventually
I imagine a new kernel will show up on F7 that actually works,
so perhaps I''ll just wait for that.