Re: [PATCH] x86: fix system without memory on node0

[Andi Kleen]

> +#if defined(CONFIG_X86_64) && defined(CONFIG_NUMA)
> +	/*
> +	 * make sure boot cpu node_number is right, when boot cpu is on the
> +	 * node that doesn't have mem installed
> +	 */
> +	per_cpu(node_number, boot_cpu_id) = cpu_to_node(boot_cpu_id);
> +#endif

Seems like a quite crappy hac^wpatch. Why is it ever set to the wrong
value? And why is that only the case on NUMA and 64bit? 

-Andi (who is also doubtful that the rest of the system can handle
memory less memory nodes in all cases)

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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