From: Justin Piszcz <jpiszcz@lucidpixels.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, Alan Piszcz <ap@solarrain.com>
Subject: Re: 128 GiB memory question-- kernel only sees 64GiB?
Date: Tue, 22 Jul 2008 16:55:03 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.1.10.0807221654480.11681@p34.internal.lan> (raw)
In-Reply-To: <1216736883.7257.102.camel@twins>
On Tue, 22 Jul 2008, Peter Zijlstra wrote:
> On Tue, 2008-07-22 at 10:21 -0400, Justin Piszcz wrote:
>> Hello,
>>
>> To be able to utilize 128 GiB of memory on a host, does one need to enable
>> NUMA support? Currently only 64 GiB is showing up.
>>
>> As far as machine name/motherboard type, I do not have this information
>> currently but I am told there are one or two of these boxes are running
>> CentOS 5.x and/or RHEL5/AS.
>
> Sounds like you need to bug RH with that ;-)
>
>> Is there something special you need to do to utilize all 128 GiB of
>> memory?
>
> Does a recent kernel work for you? Also, you could at the very least
> have mentioned your machine architecture; is it x86_64, ia64 or ppc64?
>
Sun X4600, will find out if they are running the right kernel and also
check the BIOS, thanks.
Justin.
next prev parent reply other threads:[~2008-07-22 20:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-22 14:21 128 GiB memory question-- kernel only sees 64GiB? Justin Piszcz
2008-07-22 14:28 ` Peter Zijlstra
2008-07-22 20:55 ` Justin Piszcz [this message]
2008-07-23 8:21 ` Yinghai Lu
2008-07-22 14:43 ` Rik van Riel
2008-07-22 20:55 ` Justin Piszcz
2008-07-22 21:14 ` Rik van Riel
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