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SubjectRe: [PATCH 2.6.24] mm: BadRAM support for broken memory

* H. Peter Anvin <> wrote:

>>> How is this different from:
>>> memmap=<size>$<len>
>>> ... ?
>> it's the inverse? When we identify bad areas of RAM, we really want to
>> "punch holes" into the existing memory map. So 'badram=' or 'excludemem='
>> would be nicer and easier to use.
>> Or extend 'memmap=' with an inverse parameter: memmap=!0x10000000$1M would
>> exclude a 1MB region at 256MB physical.
> My understanding is that the $-form (as opposed to the @-form or
> #-form) is exactly that:
> memmap=nn[KMG]$ss[KMG]
> [KNL,ACPI] Mark specific memory as reserved.
> Region of memory to be used, from ss to ss+nn.
> "Reserved" usually means "don't use as either memory or free address
> space".

ah - thanks - didnt know that!

i guess there might still be badram syntax details that might be worth
merging, but "memmap=" looks a lot more complete than what i thought it
to be.


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