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xen-devel
Re: [Xen-devel] Xen-devel [XEN PATCH] [Linux-PVOPS] ballooning on numa d
>>> Dulloor <dulloor@xxxxxxxxx> 09.11.09 08:40 >>>
>Problems :
>* With ballooning, the mfns could change underneath and the numa
>mappings could get distorted (even for domains with the actual
>physical memory map).
Besides being unsure about the idea as such (I don't think Xen kernels
have been knowing much about NUMA characteristics of the underlying
machine), you're assuming that node IDs in kernel and hypervisor are
identical, which I don't think is generally valid; XENMEMF_node(), afaict,
is presently meant to be used by the Xen tools (and hypervisor internal
users) only.
Jan
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