Re: [patch] x86: increase CONFIG_NODES_SHIFT max to 10

[Ingo Molnar]

* David Rientjes <rientjes@xxxxxxxxxx> wrote:

> Some larger systems require more than 512 nodes, so increase the maximum 
> CONFIG_NODES_SHIFT to 10 for a new max of 1024 nodes.
> 
> This was tested with numa=fake=64M on systems with more than 64GB of RAM. A 
> total of 1022 nodes were initialized.
> 
> Successfully builds with no additional warnings on x86_64 allyesconfig.

Not so here:

drivers/base/node.c:169: error: negative width in bit-field ?<anonymous>?

>  Greg KH has queued up numa-fix-BUILD_BUG_ON-for-node_read_distance.patch
>  for 2.6.35 to fix the build error when CONFIG_NODES_SHIFT is set to 10.
>  See http://lkml.org/lkml/2010/3/10/390

erm. Alas I cannot merge it in the x86 tree without that fix being upstream. 
Why for v2.6.35 - shouldnt that be v2.6.34?

	Ingo
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