Re: 32bits and 3G memory limit
On Mon, Jun 21, 2010 at 02:38:27PM +0000, T o n g wrote:
> Thanks everyone who replied,
>
> On Sun, 20 Jun 2010 17:26:08 +0000, Camaleón wrote:
>
> >> I mean, does 32bits Linux (the i386 architecture) has such 3G limit as
> >> well?
> >
> > No, 32 bits architecture can make use of PAE and add/use/address as much
> > as 64 GiB of RAM.
> >
> > http://en.wikipedia.org/wiki/Physical_Address_Extension
>
> in which it says:
>
> ,-----
> | The Linux kernel supports PAE as a build option and most major
> | distributions provide a PAE kernel either as the default or as an
> | option.
> `-----
>
> How can I know if the PAE support is built in my kernel?
>
> $ grep -i pae /boot/config* || echo no found
> no found
You are looking for the HIGHMEM64 config option,
and apparently the -bigmem suffixed kernel packages.
--
Jon Dowland
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