Re: [Xen-devel] [PATCH 1 of 3 v5/leftover] libxl: enable automatic placement of guests on NUMA nodes [and 1 more messages]

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Ian Campbell writes ("Re: [PATCH 1 of 3 v5/leftover] libxl: enable automatic 
placement of guests on NUMA nodes [and 1 more messages]"):
> The 4.2 freeze is starting to drag on and reworking this significantly
> at this stage seems likely to take quite a while

Yes.

> -- can we perhaps go
> with the existing patches (with the known scalability limitation and
> workaround of setting the explicit cpu affinity documented in the
> release notes) and revisit for 4.3 and/or 4.2.1?

I think the existing behaviour of these patches is unreleasable.  In a
couple of years' time people will try to run Xen 4.2 on larger
machines and the result will be a hang (perhaps of their entire
management stack) when they try to create a large guest.

At the very least it should have a safety catch so that it disables
itself, or something.

Ian.

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