On Wed, 15 Aug 2007, Michael Ellerman wrote:
> > Yes SLUB will fall back but not during bootstrap. Bootstrap needs to
> > carefully place structures on the right nodes. We fail during bootstrap
> > because there is *no* memory available on it.
>
> Sure, you want to have the structures on the right node if possible.
> But seeing as there's no memory available, what is wrong with just
> falling back?
Then you have a useless kmem_cache_node structure that will never be used.
What I could do is an alloc without GFP_THISNODE, check the location of
the allocated memory and then print out a big fat warning that the memory
setup is screwed up?
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