Re: [gentoo-user] Re: [OT] Acer Core2Duo only sees 3G of RAM

[Xavier Parizet <xav@gentooist.com>]

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Hi,

You don't need to go to bed :) Just setup your kernel to use High-Memory:
cd /usr/src/linux; make menuconfig; then item:
  Processor type and features -> High Memory Support -> 4GB
And it's done, but keep in mind that userspace processes will still be limited
to 3GB of memory use (AFAIK) (if someone would like to correct me, he is welcome).

If you want your processes to use more than 3GB of memory, then yes, boot up
with a 64bit OS (again correct me if i'm wrong) ;)

HTH.

Mick a écrit :
> Please ignore previous message ... I should have gone to bed by now because 
> evidently I am too tired to think clearly!  O_O
> 
> I will try to boot up with a 64bit OS next.
> 
> On Thursday 03 December 2009 22:14:36 Mick wrote:
>> Hi All,
>>
>> I booted up an Acer Core2Duo (P7550) with 4G of RAM using a Knoppix DVD and
>> only 3G of RAM is visible.  Why would that be so?  Both cores of the CPU
>>  are recognised, so I think that the kernel is SMP enable.  I attach the
>>  lspci output in case you see something that explains it.  Unfortunately,
>>  hwinfo fails with an io segmentation ...
>>
> 


-- 
      Xavier Parizet
YaGB :   http://gentooist.com
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