Re: [PATCH] [4/4] SLAB: Fix node add timer race in cache_reap

[Christoph Lameter]

On Fri, 26 Feb 2010, Andi Kleen wrote:

> > > Memory hotplug with node add never quite worked on x86 before,
> > > for various reasons not related to slab.
> >
> > Ok but why did things break in such a big way?
>
> 1) numa memory hotadd never worked

Well Kamesan indicated that this worked if a cpu became online.

> 2) the rest just bitrotted because nobody tested it.

Yep. David: Can you revise the relevant portions of the patchset and
repost it?

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