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Re: how to specify kernel parameter "memmap="



On Tue, Jan 07, 2014 at 09:03:03AM -0500, Long Wind wrote:
>
> I can't boot many Linux, probably because linux can't correctly detect
> memory map
> so I have to specify myself, below is copied from kernel-parameters.txt
>

Could it be that you need to run the PAE kernel? 

http://en.wikipedia.org/wiki/Physical_Address_Extension
 
> 
> memmap=exactmap	[KNL,X86] Enable setting of an exact
> 			E820 memory map, as specified by the user.
> 			Such memmap=exactmap lines can be constructed based on
> 			BIOS output or other requirements. See the memmap=nn@ss
> 			option description.
> 
> 
> Could you help me specify "exactmap"?
> I can't find details about it.
> Thanks in advance!
> 
> (I go to bed now)
> 

Would the following links help?

http://stackoverflow.com/questions/1911473/force-linux-to-use-only-memory-over-4g

http://unix.stackexchange.com/questions/37729/how-can-i-reserve-a-block-of-memory-from-the-linux-kernel


-- 
Nitebirdz
http://www.sacredchaos.com/


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