Re: Backport requests of cs 23420..23423 for 4.0 and 4.1

[Juergen Gross <juergen.gross@ts.fujitsu.com>]

Am 20.07.2012 21:36, schrieb George Dunlap:
> On 19/07/12 22:54, Juergen Gross wrote:
>> Am 19.07.2012 17:11, schrieb Ian Jackson:
>>> Keir Fraser writes ("Re: [Xen-devel] Backport requests of cs
>>> 23420..23423 for 4.0 and 4.1"):
>>>> On 13/07/2012 07:08, "Juergen Gross"<juergen.gross@ts.fujitsu.com>
>>>> wrote:
>>>>> I would like to request to include these changesets in 4.0 and
>>>>> 4.1. The backport is quite trivial, I can send patches if you are
>>>>> willing to take them.
>>>> Will need an Ack from George and then patches applied by (or at
>>>> least an Ack
>>>> from) a tools maintainer.
>>> Thanks for replying Keir, but I'm rather queasy about this.
>>>
>>> These patches have not been in any released version of Xen and are
>>> fairly substantial. I would say that we should not backport anything
>>> that isn't a critical bugfix which hasn't been sitting in a released
>>> version of Xen for a while; and a new feature ought to be considered
>>> very carefully.
>>>
>>> Now maybe the unfortunately extended 4.2 release cycle may mean we
>>> should relax this rule but I'd prefer to see a clear justification for
>>> why this is important to retrofit to 4.1.
>> Live migration is a main high-availability feature of our next release.
>>
>> A performance degradation of 10% and more will not be easily accepted for
>> a system which is expected to be up 24/7.
> Is there a reason you can't just do as XenServer and XCP have done, and
> have them in a local patch queue?

That's plan C. :-)

We are using SLES as base, so plan B is asking Suse...

> Obviously it's better to keep a local patch queue as short as possible,
> but it doesn't seem like you're really going to be that crippled if we
> wait to check them in.

Correct.

I had to try. :-)


Juergen

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