Re: [tip:x86/urgent] x86/uv: fix init of memory-less nodes

[David Rientjes]

On Fri, 17 Apr 2009, tip-bot for Jack Steiner wrote:

> Commit-ID:  28468050e2f5410c04fd737c922f2bea73ddd690
> Gitweb:     http://git.kernel.org/tip/28468050e2f5410c04fd737c922f2bea73ddd690
> Author:     Jack Steiner <steiner@xxxxxxx>
> AuthorDate: Fri, 17 Apr 2009 09:22:42 -0500
> Committer:  Ingo Molnar <mingo@xxxxxxx>
> CommitDate: Fri, 17 Apr 2009 16:45:29 +0200
> 
> x86/uv: fix init of memory-less nodes
> 
> Add support for nodes that have cpus but no memory.
> The current code was failing to add these nodes
> to the nodes_present_map.
> 
> [ Impact: fix potential boot crash on memory-less UV nodes. ]
> 

This is incomplete, x2apic maps cpus to pxms with a type 2 srat entry and 
that pxm may not have affinity to any type 1 memory structure.
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