Re: [Xen-devel] [Xen-4.3 backport] [Patch] tools/migrate: Fix regression when migrating from older version of Xen

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 13/11/13 09:29, Ian Campbell wrote:
> On Tue, 2013-11-12 at 15:21 +0000, Ian Jackson wrote:
>> Andrew Cooper writes ("[Xen-devel] [Xen-4.3 backport] [Patch] tools/migrate: 
>> Fix regression when migrating from older version of Xen"):
>> ...
>>> With this fix in place, the behaviour for normal migrations is
>>> reverted to how it was before the regression; the migration is
>>> considered non-checkpointed right from the start.  A
>>> XC_SAVE_ID_LAST_CHECKPOINT chunk seen in the migration stream is a
>>> nop.  For checkpointed migrations the behaviour is unchanged.
>> This patch has been sitting in unstable master for a while now without
>> apparent problems, and the backport looks plausible.  So I have
>> applied your backport to staging-4.3.
>>
>> I had a quick look at applying this to 4.2, too, but it didn't apply
>> cleanly.  If you have a version for 4.2, I'd be happy to commit it.
> Does the issue existing between 4.2->4.3 migrations?
>
>

The issue exists migrating across the changeset
00a4b65f8534c9e6521eab2e6ce796ae36037774

This is a supported upgrade configuration for XenServer.

I will endeavour to provide a 4.2 backport when I have enough time to do so.

~Andrew

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