linux-kernel - Re: BUG: enable_cpucache failed for radix_tree_node, error 12 (was: Re: [PATCH v3 9/9] slab: remove BAD_ALIEN

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Date:	Fri, 8 Aug 2014 14:06:16 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Linux MM <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vladimir Davydov <vdavydov@...allels.com>
Subject: Re: BUG: enable_cpucache failed for radix_tree_node, error 12 (was:
 Re: [PATCH v3 9/9] slab: remove BAD_ALIEN_MAGIC)

Hi Christoph,

On Fri, Aug 8, 2014 at 1:50 PM, Christoph Lameter <cl@...ux.com> wrote:
> On Fri, 8 Aug 2014, Geert Uytterhoeven wrote:
>> > Of possible, could you check whether page_to_nid(page) returns
>> > only 0 or not?
>>
>> It returns 0 or 1.
>
> Ok this is broken on m68k. CONFIG_NUMA is required for this to work. If
> the arch code does this despite !CONFIG_NUMA then lots of things should
> break.

Can you please elaborate? We've been using for years...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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