Re: Xen 4.3 development update

[George Dunlap <george.dunlap@eu.citrix.com>]

On 17/06/13 13:35, Fabio Fantoni wrote:
> Il 17/06/2013 12:58, George Dunlap ha scritto:
>> There are basically two issues we're waiting to sort out (see below
>> for more info):
>>   * cpu hotplug in qemu-upsream
>>   * The MMIO hole issue
>>
>> Anthony has patches for cpu hot-plug, and we have plans for how to
>> work around the MMIO hole issue, so we're getting really close.
>>
>> Also note that we have slipped the release date a week, to the 26th,
>> to make sure we have enough time to catch any potential bugs in the
>> recent check-ins.
>>
>> This information will be mirrored on the Xen 4.3 Roadmap wiki page:
>>   http://wiki.xen.org/wiki/Xen_Roadmap/4.3
>>
>> The key goals we're focusing on now, in order, are as follows:
>>   1. Have a bug-free 4.3 release
>>   2. Have an awesome 4.3 release
>>   3. Have a 4.3 release that happens on schedule (ready by June 15th)
>>
>> The most important thing in making a case is to answer the question,
>> "If there are bugs in this patch, will they be discovered before the
>> June 17th release?"  The second most important thing is to consider the
>> cost/benefit analysis of bugs that are found: what is the risk of
>> introducing a bug which will delay the release, vs the benefit it will
>> have in making the release better?
>>
>> = Timeline =
>>
>> We are planning on a 9-month release cycle.  Based on that, below are
>> our estimated dates:
>> * Feature freeze: 25 March 2013
>> * Code freezing point: 15 April 2013
>> * First RC: 6 May 2013 <== WE ARE HERE
>> * Release: 26 June 2013
>>
>> The RCs and release will of course depend on stability and bugs, and
>> will therefore be fairly unpredictable.  Each new feature will be
>> considered on a case-by-case basis.
>>
>> The June 17th release is both an estimate and a goal.  At this point,
>> Xen 4.3 can be released whenever it's actually ready.  In fact, the
>> sooner we release, the sooner we can open the tree up for new
>> development and get on to 4.4 -- so keep fixing those bugs!
>>
>> Last updated: 17 June 2013
>>
>> == Completed ==
>>
>> * Default to QEMU upstream (partial)
>>   - pci pass-thru (external)
>>   - enable dirtybit tracking during migration (external)
>
>>   - xl cd-{insert,eject}
>
> Tested and working. No more bugs found.
>
>>
>> * openvswitch toostack integration
>>    To label "tech-preview" unless we get good testing (>10 individuals)
>
> Tested and working. It also works with hvm domUs that didn't work on 
> initial version of vif script. No bugs found for now.

Great, thanks for testing.

  -George