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RE: [Xen-devel] live migration fails (assert in shadow_hash_delete)



HVM with pv-ops? Seems irrelevant whether the kernel used in a hvm
guest has pv-ops. The point is that HVM live migration appears to work
fine (also according to our internal testing), just pv seems to be broken
(and unfortunately with no consistent crash pattern).

Jan

>>> "Xu, Jiajun" <jiajun.xu@xxxxxxxxx> 26.02.10 07:12 >>>
Our normal testing covers local live migration testing for HVM with Pv_ops. 
These cases can pass in Xen-4.0.0 RCx testing. 
And I just now tried HVM live migration between two machines with xen c/s 20964 
and Pv_ops, it can work.

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Keir Fraser
> Sent: Tuesday, February 23, 2010 7:00 PM
> To: Tim Deegan; Devdutt Patnaik; Ian Jackson
> Cc: Ashish Bijlani; xen-devel@xxxxxxxxxxxxxxxxxxx 
> Subject: Re: [Xen-devel] live migration fails (assert in shadow_hash_delete)
> 
> On 23/02/2010 10:46, "Tim Deegan" <Tim.Deegan@xxxxxxxxxx> wrote:
> 
> > At 10:19 +0000 on 23 Feb (1266920353), Devdutt Patnaik wrote:
> >> We just used the xen-unstable version from 2 weeks ago, and haven't really
> >> modified it.
> >> We tried this with 64-bit versions of 2.6.31.6 and 2.6.32.8 DomU kernels.
> >
> > OK.  This really needs to be fixed to the 4.0 release.  Keir, have we
> > had any other testing on 64-bit PV live migrations?
> 
> Localhost migrations were just added to the automated tests. But I think
> maybe they are trivially failing due to trying to do them via the 'xl'
> interface, which doesn't support it(!). Ian?
> 
> In short, there's probably been little or no testing of live migration in
> the recent past, as I don't think Intel tests it either.
> 
>  -- Keir
> 
> 
> 
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