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xen-users
[Xen-users] Re: xm balloon problems
Ernst Bachmann wrote:
Balloon works by having a kernel driver inside the dom allocate a chunk of
memory and releasing that chunk back to xen. Ballooning a domain to more
memory than it initially had would require the balloon driver to allocate a
negative ammount of memory, which simply isn't possible.
I'd think there'd be some way to expose extra memory allocated at
runtime, even if it's not exactly an efficient one.
At a minimum, one could expose extra memory through a MTD driver and add
it as high-priority swap -- and I'm sure better options are available as
well.
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