> Test case inspired by Linbit:
> http://lists.linbit.com/pipermail/drbd-user/2008-May/009282.html
> 
> We already know that the swap code has similar behavior. In case
> a page gets touched while it is under write out IO, the swap allows
> the modification to the page although it is under IO by the block
> layer. Therefore the swap code does not know which version actually
> got written to disk, but it does not care, since it knows that it
> has the up to date version in core memory.

Oh, interesting - thanks for the link.

So the only problem is that we get an inconsistent state due to live migration?

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