Re: [Xen-devel] Xen 4.5 development update (September update). Feature freeze slip by two weeks.

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 09/25/2014 10:22 AM, Dave Scott wrote:
> Hi Konrad,
>
> On 10 Sep 2014, at 18:05, <konrad.wilk@xxxxxxxxxx> <konrad.wilk@xxxxxxxxxx> 
> wrote:
>
> > *  extend the xenstore ring with a 'closing' signal (fair)
> >    RFC patch posted
> >   -  David Scott
> I’d like to propose an exception for this one. The title is perhaps underselling it: 
> although it is a protocol extension (and hence a new feature) the main motivation is to fix a 
> bug in hvmloader which causes HVM guests to hang during booting on a busy machine. The bug is 
> fairly easy to reproduce with ~200 VMs: you’ll probably find at least one failed to 
> boot.
>
> The patch set has got to a v4 but needs a little bit of work to clarify the 
> relationship between the closing signal and the existing RESET_WATCHES xenstore 
> protocol request.
>
> I may be pushing my luck here :-) but I’d like to propose an additional 
> exception for a feature not on your list:
>
> * xl, libxl: add support for ‘channels'
>
> This has got to a v6 and I believe the API and implementation is stable. It mainly 
> needs some review of the xl config file parsing changes. This is definitely a new 
> feature and not a bug fix. I’d mainly like to make the API official so that I 
> can depend upon it in libvirt.
>
> Thanks for your consideration!
I think a release exception is like an Acked-by or a Reviewed-by: it 
applies to a specific version of a patch series, not the general idea of 
the patch series.  There's no point arguing for a release exception 
until you actually have an otherwise fully-Acked patch series.
 -George

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