Re: [PATCH 5/5] kexec: X86: Pass memory ranges via e820 table insteadof memmap= boot parameter

[Dave Hansen]

On 04/14/2013 09:52 PM, HATAYAMA Daisuke wrote:
> This sounds like there's no such issue on x86 cache mechanism. Is it
> correct? If so, what is the difference between ia64 and x86 cache
> mechanisms?

I'm just going by the code comments:

drivers/char/mem.c
>                 /*
>                  * On ia64 if a page has been mapped somewhere as uncached, then
>                  * it must also be accessed uncached by the kernel or data
>                  * corruption may occur.
>                  */

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