Re: [PATCH for v3.17-rc1] Revert "slab: remove BAD_ALIEN_MAGIC"

[Geert Uytterhoeven]

On Fri, Aug 8, 2014 at 4:44 PM, Christoph Lameter <cl@xxxxxxxxx> wrote:
> On Fri, 8 Aug 2014, Joonsoo Kim wrote:
>
>> This reverts commit a640616822b2 ("slab: remove BAD_ALIEN_MAGIC").
>
> Lets hold off on this one. I am bit confused as to why a non NUMA system
> would have multiple NUMA nodes.

DISCONTIGMEM

mm/Kconfig:

#
# Both the NUMA code and DISCONTIGMEM use arrays of pg_data_t's
# to represent different areas of memory.  This variable allows
# those dependencies to exist individually.
#
config NEED_MULTIPLE_NODES
        def_bool y
        depends on DISCONTIGMEM || NUMA

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/