KVM binary incompatiablity

KVM binary incompatiablity

[Stephen Hemminger]

I notice that recent KVM is incompatiable with older versions.

Using a KVM image created on 2.6.24 will crash on 2.6.25 (or
vice versa). It appears that Ubuntu Hardy has incorporated the 2.6.25
update even though it claims to be 2.6.24.

This is reproducible on Intel (64bit) kernel.  Was this intentional?
is it documented? 

KVM binary incompatiablity

[Stephen Hemminger]

I notice that recent KVM is incompatiable with older versions.

Using a KVM image created on 2.6.24 will crash on 2.6.25 (or
vice versa). It appears that Ubuntu Hardy has incorporated the 2.6.25
update even though it claims to be 2.6.24.

This is reproducible on Intel (64bit) kernel.  Was this intentional?
is it documented? 

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Re: [kvm-devel] KVM binary incompatiablity

[Anthony Liguori]

Stephen Hemminger wrote:
> I notice that recent KVM is incompatiable with older versions.
>
> Using a KVM image created on 2.6.24 will crash on 2.6.25 (or
> vice versa). It appears that Ubuntu Hardy has incorporated the 2.6.25
> update even though it claims to be 2.6.24.
>   

This isn't intentional.  What is the guest and how does it crash?

I've been using the same image for most of KVM's development life cycle 
without having issues.

Regards,

Anthony Liguori

> This is reproducible on Intel (64bit) kernel.  Was this intentional?
> is it documented? 
>
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>   

Re: [kvm-devel] KVM binary incompatiablity

[Stephen Hemminger]

On Fri, 08 Feb 2008 16:22:12 -0600
Anthony Liguori <anthony@codemonkey.ws> wrote:

> Stephen Hemminger wrote:
> > I notice that recent KVM is incompatiable with older versions.
> >
> > Using a KVM image created on 2.6.24 will crash on 2.6.25 (or
> > vice versa). It appears that Ubuntu Hardy has incorporated the 2.6.25
> > update even though it claims to be 2.6.24.
> >   
> 
> This isn't intentional.  What is the guest and how does it crash?
> 
> I've been using the same image for most of KVM's development life cycle 
> without having issues.
> 
> Regards,
> 
> Anthony Liguori
>
I'll see if I can get a backtrace, it isn't reliably reproducible.

-- 
Stephen Hemminger <stephen.hemminger@vyatta.com>

Re: KVM binary incompatiablity

[Stephen Hemminger]

On Fri, 08 Feb 2008 16:22:12 -0600
Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org> wrote:

> Stephen Hemminger wrote:
> > I notice that recent KVM is incompatiable with older versions.
> >
> > Using a KVM image created on 2.6.24 will crash on 2.6.25 (or
> > vice versa). It appears that Ubuntu Hardy has incorporated the 2.6.25
> > update even though it claims to be 2.6.24.
> >   
> 
> This isn't intentional.  What is the guest and how does it crash?
> 
> I've been using the same image for most of KVM's development life cycle 
> without having issues.
> 
> Regards,
> 
> Anthony Liguori
>
I'll see if I can get a backtrace, it isn't reliably reproducible.

-- 
Stephen Hemminger <stephen.hemminger-ZtmgI6mnKB3QT0dZR+AlfA@public.gmane.org>

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