If you *need* to use the live migration (rather than offline migration
by copying the disk images) you have already made a decision that the
service is sufficiently important that you cannot have downtime on it.
If the live migration could fail, and resuming it could crash (as
reported), this is going to be a serious concern and most likely not a
risk you would wish to take with a service that you have already decided
is so vital as to not need downtime.

The migration feature that if used might crash, is not a feature I would
like to trust my valuable services to.

Therefore I would suggest that this crash have the same priority as the
migration feature. If migration is a low priority feature then it would
be find as 'low' priority', but if the live migration is an important
feature to have then it needs to be solid.

As an administrator of services, I play have a game of Russian-roulette
with them, and migration is that game at present.

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https://bugs.launchpad.net/bugs/855800

Title:
  KVM crashes when attempting to restart migration

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