Re: [libvirt] [Qemu-devel] [PATCH 14/17] add new RanState RAN_STATE_FLIPPING_MIGRATE
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Il 22/10/2013 04:51, Eric Blake ha scritto:
Last time we added a new user-visible runstate, it broke migration
with older libvirt versions that weren't prepared to see the new
state (hmm, I need to check if libvirt has fixed that in the
meantime; adding a cc...). Paolo's advice at the time was that it
is okay to require a new libvirt when using a new qemu, and that
libvirt should be taught to treat all unknown RunState as if they
were 'running'; although for this particular addition it might be
nicer to have libvirt lump 'inmigrate' and 'flipping-migrate' to
the same usage.
This is not a problem in this case, because the new runstate will only
appear after enabling a new migration capability. Only new libvirt
will be able to enable the capability and thus reach the new runstate.
Poalo
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