On Tue, Jun 10, 2008 at 5:43 PM, Ruslan Sivak <russ@xxxxxxxxxx> wrote:
> I'm running CentOS 5.1 with all updates, and the xen kernel. For some
> reason the OS is not seeing the full amount of ram.
> #uname -a
> Linux CentOS-VM-A 2.6.18-53.1.21.el5xen #1 SMP Tue May 20 10:03:27 EDT 2008
> x86_64 x86_64 x86_64 GNU/Linux
>
> # free
> total used free shared buffers cached
> Mem: 6104064 3445136 2658928 0 1412236 1515032
> -/+ buffers/cache: 517868 5586196
> Swap: 2031608 0 2031608
>
>
> On another box with identical hardware, I see
> # free
> total used free shared buffers cached
> Mem: 5038080 1818980 3219100 0 145208 1148608
> -/+ buffers/cache: 525164 4512916
> Swap: 2031608 152 2031456
>
>
> Both of these boxes have 8GB of ram. Is there a reason I'm not seeing all
> of it?
> Russ
Wonder if this is related to a known issue with the xen kernel.
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=12491&forum=38
Or
http://bugs.centos.org/view.php?id=1905
You might want to try the grub with a patch offered in there.
Akemi
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