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xen-devel
Re: [Xen-devel] lowest limit for balloon?
On 18 Jul 2005, at 17:12, Mark Williamson wrote:
I know that it's really difficult to determine how low is too low.
Could I recommend a small interface change though, that would force
the
user to always specify units {B,K,M,...}? That might help a little at
least.
That sounds like it should rule out most accidental errors. Whilst
it's not
quite so raw, /proc interfaces tend to be a bit high level anyhow...
As an alternative, I guess we could introduce a guest-internal
ballooning tool
- this could incorporate all the safety checks and user-friendliness
(the
same or similar checks should be used in the xm tool for the node
admin).
Really, if you want to safely balloon inside a guest VM, is it so hard
to write a tiny script to ensure a 'sane' value is passed to the /proc
interface?
The /proc interface is only really text read/write so that accesses are
scriptable. If you go straight at it and mess it up, I think that is
tough luck.
-- Keir
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