2011-06-17 01:08:13

by chrish

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Subject: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

Hi,

I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
behavior. 8GB is installed but only 2698476 shows available for use
using "top" or "free". dmidecode shows 2 4GB DIMMs and the BIOS reports
8GB of memory. Memtest reports and tests 8GB of memory. I Googled the
issue and it seems there are others that also report the same. What to
do? Thank you.

Best,
Chris


2011-06-17 06:54:32

by Clemens Ladisch

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Subject: Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

[email protected] wrote:
> I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
> behavior. 8GB is installed but only 2698476 shows available for use
> using "top" or "free".

/proc/iomem?
dmesg?

2011-06-17 09:03:10

by Borislav Petkov

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Subject: Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

On Fri, Jun 17, 2011 at 08:52:19AM +0200, Clemens Ladisch wrote:
> [email protected] wrote:
> > I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
> > behavior. 8GB is installed but only 2698476 shows available for use
> > using "top" or "free".
>
> /proc/iomem?
> dmesg?

Also, do you have the latest BIOS? If not, can you update it? Also, can
you try the latest upstream kernel to verify the problem still exists?

Thanks.

--
Regards/Gruss,
Boris.

2011-06-17 09:21:20

by Joerg Roedel

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Subject: Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

On Thu, Jun 16, 2011 at 05:59:19PM -0700, [email protected] wrote:
> I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
> behavior. 8GB is installed but only 2698476 shows available for use
> using "top" or "free". dmidecode shows 2 4GB DIMMs and the BIOS reports
> 8GB of memory. Memtest reports and tests 8GB of memory. I Googled the
> issue and it seems there are others that also report the same. What to
> do? Thank you.

It was already asked for, but dmesg is certainly helpful. Please send
the dmesg of a kernel boot.

Joerg

Subject: Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

On Fri, Jun 17, 2011 at 05:03:03AM -0400, Borislav Petkov wrote:
> On Fri, Jun 17, 2011 at 08:52:19AM +0200, Clemens Ladisch wrote:
> > [email protected] wrote:
> > > I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
> > > behavior. 8GB is installed but only 2698476 shows available for use
> > > using "top" or "free".
> >
> > /proc/iomem?
> > dmesg?
>
> Also, do you have the latest BIOS? If not, can you update it? Also, can
> you try the latest upstream kernel to verify the problem still exists?

Something else you could try is update your Fedora 14 kernel since the
latest version supposedly contains a fix which is relevant to your
issue:

commit 3fdbf004c1706480a7c7fac3c9d836fa6df20d7d
Author: Andreas Herrmann <[email protected]>
Date: Thu Sep 30 14:32:35 2010 +0200

x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs

--
Regards/Gruss,
Boris.

Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
GM: Alberto Bozzo
Reg: Dornach, Landkreis Muenchen
HRB Nr. 43632 WEEE Registernr: 129 19551

2011-06-17 17:30:26

by chrish

[permalink] [raw]
Subject: Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed

Thank you to those who gave suggestions about the issue I saw. Updating
the kernel to 2.6.39, for me, fixed the problem.

Best,
Chris


> Hi,
>
> I tried this on Fedora 14 and OpenSuse 11.4 and both exhibit the same
> behavior. 8GB is installed but only 2698476 shows available for use
> using "top" or "free". dmidecode shows 2 4GB DIMMs and the BIOS reports
> 8GB of memory. Memtest reports and tests 8GB of memory. I Googled the
> issue and it seems there are others that also report the same. What to
> do? Thank you.
>
> Best,
> Chris
>
>