Re: [Xen-devel] [PATCH 23/27] tools/libxl: [RFC] Write checkpoint records into the stream

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 16/06/15 16:03, Ian Campbell wrote:
> On Mon, 2015-06-15 at 14:44 +0100, Andrew Cooper wrote:
>> when signalled to do so by libxl__remus_domain_checkpoint_callback()
> I think I saw that Remus wasn't currently working, so I'll let you and
> Hongyang thrash something out before I spend too much effort reviewing
> these last few RFC bits. Unless you think it is worth my having a look
> now?
>
>

Remus was broken by patch 19 in the series, and this patch forms part of
fixing it again.

I can't find a way of fixing the layering violation in both plain
migration and Remus, in a readable, bisectable way.

Remus requires identical source and destination toolstacks, and the
Remus maintainers are happy enough with the "break it and fix it up in
the same series" approach.

Now that the series is comeplete, there is some shuffling room to reduce
the window of breakage, but short of folding patches 19, 21, 23-25
together, Remus will break.

~Andrew

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