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Re: [Xen-devel] [RFC PATCH 2/3] remus: implement remus checkpoint in v2 save
On 16/07/14 17:02, Shriram Rajagopalan
wrote:
You are correct. The code is in the way it is because of the order
in which I implemented things when building live migration from
first principles.
suspend_domain() confirming that the domain has indeed suspended is
a recent addition, and does indeed negate the refresh of the domain
information in save(). I will fix that in the upcoming series.
However, I think keeping the sanity check that the domain has
actually been paused is still a good idea. It is a stated
precondition of the following functions and I know for certain that
debugging the tail of migration with an unpaused VM causes some very
subtle bugs on resume.
~Andrew
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