Re: SLUB doesn't work with kdump kernel on Cell

From: Christoph Lameter
Date: Wed Aug 08 2007 - 16:39:19 EST


On Wed, 8 Aug 2007, Arnd Bergmann wrote:

> In the future, we also may have configurations where we need to run with
> memoryless nodes on a production environment, so it should really just
> work.

Memoryless node support is work in progress currently in mm. You may
encounter strange NUMA issues if you try to run a memoryless node right
now.

> What makes you assume that there is one page in the node? AFAICS, it
> is a CPU-only node already without any pages.

The boot output shows:

Zone PFN ranges:
DMA 0 -> 12288
Normal 12288 -> 12288
early_node_map[2] active PFN ranges
0: 0 -> 2560
1: 12287 -> 12288

Remove the page and you should be fine.

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