On Mon, Jun 8, 2015 at 6:14 PM, Luck, Tony <tony.luck@xxxxxxxxx> wrote:
>> > +config MEMORY_MIRROR
>> > + bool "Address range mirroring support"
>> > + depends on X86 && NUMA
>> > + default y
>> Is it correct for the systems (NOT xeon) without memory support built in?
>
> Is the "&& NUMA" doing that? If you support NUMA, then you are not a minimal
> config for a tablet or laptop.
>
> If you want a symbol that has a stronger correlation to high end Xeon features
> then perhaps MEMORY_FAILURE?
I would like to see the default set to be "n".
On my machine (x86_64) defconfig enables this feature and I don't know
if this feature can work there.
➜ linux-mm git:(dev) ✗ make defconfig ARCH=x86
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/bin2c
HOSTCC scripts/kconfig/conf.o
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
*** Default configuration is based on 'x86_64_defconfig'
#
# configuration written to .config
#
➜ linux-mm git:(dev) ✗ grep CONFIG_MEMORY_MIRROR .config
CONFIG_MEMORY_MIRROR=y
>
> -Tony
--
Leon Romanovsky | Independent Linux Consultant
www.leon.nu | leon@xxxxxxx
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