Re: 32bit NUMA and fakeNUMA broken for AMD CPUs

From: Hans Rosenfeld
Date: Wed Jun 29 2011 - 08:55:40 EST


On Wed, Jun 29, 2011 at 08:34:09AM -0400, Tejun Heo wrote:
> So, mminit_verify_page_links() detects it while the last 512MiB
> highmem chunk of node 0 is being initialized and freaks out.
>
> We definitely need a safe guard to check NUMA node alignment and
> disable NUMA if it requires finer granuality than supported by the
> memory model. If you use DISCONTIGMEM, which has 64MiB granuality,
> instead, it works, right?

I had DISCONTIGMEM enabled in the kernel config, it does not work.

Hans


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