RE: [Xen-users] Memory problem's 2GB mod

["Kevin van Kuik" <kkuik@xxxxxxxxxxxxxxxxxxxxxx>]

If you put 4GB memories (2 X 2GB) xen-3.0.2-2 crashed to and if when we put 2Gb (2 X 1 GB) it works fine. So 16Gb is not the problem.!

We have tried new memory and we have the same crash.

 

So if I put 2gb memories it's crashing with xen-3.0.2-2, but it's work fine with redhat 4.1 kernel, xen-3.0.1 So or only explanation is that xen-3.0.2-2 have a problem with 2 GB memories

 

Ragards Kevin

 

-----Oorspronkelijk bericht-----
Van: Petersson, Mats [mailto:Mats.Petersson@xxxxxxx]
Verzonden: Thursday, August 24, 2006 12:00 PM
Aan: Kevin van Kuik; xen-users@xxxxxxxxxxxxxxxxxxx
Onderwerp: RE: [Xen-users] Memory problem's 2GB mod

Xen has absolutely no idea what type of memory modules you're using, so obviously this is not DIRECTLY causing the problem.

 

Have you tried runnign a memory test on the 16GB memories? It may just be that a slightly different setup of memory (caused by arbitrary changes in Xen 3.0.1->3.0.2) causes you to hit some bad spot in the memory.

 

To utterly prove that it's not a "module" issue, you could also try running 4 * 2GB instead of 8 * 1GB, which should have the same effect.

 

The only place where the actual configuration of the memory is known is within the BIOS that sets up the memory configuration early on in the boot process (before you see any text on your monitor). Beyond that, no software will touch anything that is related to what type or model of memory you're using [except for some utilities that are able to READ the memory configuration registers to tell you what type of memories you're using, etc, etc].

 

--

Mats

---

From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Kevin van Kuik
Sent: 24 August 2006 00:15
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Memory problem's 2GB mod

I have a HP ml370 with xen-3.0.1 and redhat 4.1 with 16 GB memory (8 x 2GB). I want to upgrade to xen-3.0.2-2 because the server crashed on the scsi driver.

 

If I boot the server with xen-3.0.2-2 it crashed on the boot. But if I put 8 x 1GB memory the server boot fine.

 

So xen-3.0.2-2 can't work with 2GB memory modules. Is there a compile option to solve this problem?

 

The memory is OK because it's work fine with redhat 4.1 (without xen) and xen-3.0.1

 

regards Kevin

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