memory question

Chris Jones jonesc at
Mon Jan 5 13:32:03 UTC 2009

Francisco Borges wrote:
> On Mon, Jan 5, 2009 at 2:02 AM, Paras pradhan <pradhanparas at> wrote:
>> Is there anything I can do to use full 4 GB of RAM instead of 3.24 GB
>> when using 8.10 64 bit?. My machine is Dell 640m Laptop with A10 bios.
>> Any one full utilizing 4 GB?
> Hello Paras,
> I have a 32bit installation running 2.6.27-9-server with 4Gb of RAM.
> My kernel says that is sees 3918Mb.

That means you must be running a PAE kernel (I suspect that the server 
kernel includes this). This allows 32bit installations to use more than 
3.2G of ram, at the expense of some additional complexity in the kernel. 
It doesn't, asaik, allow a single process to use more than 3.2G of ram 
though. That I believe is impossible with a 32bit kernel.


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