Re: [Xen-devel] [PATCH RFC 0/4] Fix issues with zero-length records in migration v2

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Mar 14, 2017 at 01:50:44PM +0000, Andrew Cooper wrote:
> On 14/03/17 13:20, Julien Grall wrote:
> > Hi Andrew,
> >
> > On 21/07/16 18:17, Andrew Cooper wrote:
> >> This series is RFC because it has only had compile testing thusfar.
> >>
> >> On AMD hardware supporting Debug Extentions, migration of a PV guest
> >> which is
> >> not currently using Debug Extentions fails, as the save side writes a
> >> X86_PV_VCPU_MSRS record with 0 content, which the receving side
> >> chokes on.
> >>
> >> It was alway the intention that such a record would be omitted, but that
> >> obviously didn't go as intended.
> >>
> >> Adjust the docs to clarify that such records should be omitted, but that
> >> receving sides should tolerate their presence.
> >
> > Last December you requested this series to be a blocker for Xen 4.9
> > (see [1]). Do you have any update on the status?
> 
> As previously identified, my opinion is that the code as presented in v1
> is correct, and there have been no reasonable arguments to the contrary.
> 
> I can post v1 again, but it won't be altered.
> 

What about the subthread starting from
<22422.18745.380486.234849@xxxxxxxxxxxxxxxxxxxxxxxx> ?

> ~Andrew

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