Re: [Xen-devel] Unable to boot dom0 with 2.6.16-rc1 and xen-3.0-testing

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

Try booting the kernel as uni-processor only; I would suspect the problem of 
booting SMP kernels (version 2.6.14 and
later, cpu_possible_map getting set up too late) still hasn't been addressed 
... Jan

>>> Travis Cross <travis@xxxxxxxxxxxxxxxxx> 05.02.06 20:11:18 >>>
> linux-2.6-xen.hg tracks xen-unstable, so it's newer than
> 3.0-testing.

Thanks for pointing that out.  I started to suspect that might be
the case after diff'ing both
{xen-unstable,xen-3.0-testing}/linux-2.6-xen-sparse against
linux-2.6-xen.

So upon your suggestion, I installed xen and xen-tools from
xen-unstable at 8758, to see if that might make the 2.6.16-rc1
kernel fly.  The result was the same: 2.6.16-rc1 crashes promptly,
2.6.12.6 starts without a hitch.

To check the sanity of my build options for the new kernel on this
box, I built a vanilla 2.6.16-rc2 kernel without Xen, and started it
without the hypervisor running (it worked).

> It ought to work when rolled back to a suitable version, or just
> use Linux 2.6.12 in the unstable repo.

I can start the 2.6.12.6 kernel on any Xen build from xen-3.0.0 to
xen-3.0-testing to the latest xen-unstable.  I can't seem to get a
late-model linux kernel to boot though (either as a dom0 or domU,
actually).

Is there a revision after 2.6.12.6 and before the tip that it might
be useful to test?

Cheers,

-- Travis

Keir Fraser wrote:
> 
> On 4 Feb 2006, at 21:34, Travis Cross wrote:
> 
>> I am unable to boot dom0 on a x86_64 (Pentium D dual core)
>> machine using xen-3.0-testing at changeset 8738 and
>> linux-2.6-xen at changeset 19827.  Booting dom0 using the
>> latest xen hypervisor and linux-2.6.12.6 seems to work.
> 
> 
> Older guest on newer Xen should always work, but the same isn't
> true for newer guest on older Xen. linux-2.6-xen.hg tracks
> xen-unstable, so it's newer than 3.0-testing.
> 
> It ought to work when rolled back to a suitable version, or just
> use Linux 2.6.12 in the unstable repo.
> 
> -- Keir

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