public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
@ 2011-06-17  0:59 chrish
  2011-06-17  6:52 ` Clemens Ladisch
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: chrish @ 2011-06-17  0:59 UTC (permalink / raw)
  To: linux-kernel

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



^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
  2011-06-17  0:59 PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed chrish
@ 2011-06-17  6:52 ` Clemens Ladisch
  2011-06-17  9:03   ` Borislav Petkov
  2011-06-17  9:21 ` Joerg Roedel
  2011-06-17 17:30 ` chrish
  2 siblings, 1 reply; 6+ messages in thread
From: Clemens Ladisch @ 2011-06-17  6:52 UTC (permalink / raw)
  To: chrish; +Cc: linux-kernel

chrish@techspecs.com 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?

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
  2011-06-17  6:52 ` Clemens Ladisch
@ 2011-06-17  9:03   ` Borislav Petkov
  2011-06-17 12:37     ` Borislav Petkov
  0 siblings, 1 reply; 6+ messages in thread
From: Borislav Petkov @ 2011-06-17  9:03 UTC (permalink / raw)
  To: chrish; +Cc: linux-kernel, Clemens Ladisch, Andreas Herrmann, Borislav Petkov

On Fri, Jun 17, 2011 at 08:52:19AM +0200, Clemens Ladisch wrote:
> chrish@techspecs.com 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.

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
  2011-06-17  0:59 PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed chrish
  2011-06-17  6:52 ` Clemens Ladisch
@ 2011-06-17  9:21 ` Joerg Roedel
  2011-06-17 17:30 ` chrish
  2 siblings, 0 replies; 6+ messages in thread
From: Joerg Roedel @ 2011-06-17  9:21 UTC (permalink / raw)
  To: chrish; +Cc: linux-kernel

On Thu, Jun 16, 2011 at 05:59:19PM -0700, chrish@techspecs.com 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


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
  2011-06-17  9:03   ` Borislav Petkov
@ 2011-06-17 12:37     ` Borislav Petkov
  0 siblings, 0 replies; 6+ messages in thread
From: Borislav Petkov @ 2011-06-17 12:37 UTC (permalink / raw)
  To: chrish; +Cc: Borislav Petkov, linux-kernel, Clemens Ladisch, Andreas Herrmann

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:
> > chrish@techspecs.com 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 <andreas.herrmann3@amd.com>
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


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed
  2011-06-17  0:59 PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed chrish
  2011-06-17  6:52 ` Clemens Ladisch
  2011-06-17  9:21 ` Joerg Roedel
@ 2011-06-17 17:30 ` chrish
  2 siblings, 0 replies; 6+ messages in thread
From: chrish @ 2011-06-17 17:30 UTC (permalink / raw)
  To: linux-kernel

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
>
>



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2011-06-17 17:30 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-06-17  0:59 PROBLEM: AMD Zacate E350 shows only 2.6GB memory when 8GB installed chrish
2011-06-17  6:52 ` Clemens Ladisch
2011-06-17  9:03   ` Borislav Petkov
2011-06-17 12:37     ` Borislav Petkov
2011-06-17  9:21 ` Joerg Roedel
2011-06-17 17:30 ` chrish

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox