FC6 - Incorrect Memory size
Dave Jones
davej at redhat.com
Tue Feb 13 05:55:20 UTC 2007
On Mon, Feb 12, 2007 at 09:02:10PM -0500, CC Chaman wrote:
> Hi,
>
> First post, so please forgive if this is in the wrong board.
>
> I've installed Zod on a Dell 2950 with 8 GB Ram. The 2.6.18 kernel only
> reports 4GB, so I decided to do an "yum upgrade" ... excpet now with the
> 2.6.19 kernel I only have 3.2 GB
>
> Here's the top output:
> Mem: 3368804k total, 743888k used, 2624916k free, 43428k buffers
> Swap: 2031608k total, 0k used, 2031608k free, 429312k cached
>
>
> Here's the fun part...when I boot with Xen - Ram is reported correctly?
>
> Any help would be appreciated!
>
> ( I did try setting kernel parameter mem=8192M ... does not work)
The standard kernel can only see up to 4GB. You need to
install kernel-PAE to see more. The reason the Xen kernel
worked is that it also enabled PAE. (Physical Address Extensions).
Dave
--
http://www.codemonkey.org.uk
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