linux-kernel - smp incompatible Nvidia mcp61s mainboard chip set

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Message-ID: <46AE8F64.8020605@cox.net>
Date:	Mon, 30 Jul 2007 20:24:52 -0500
From:	Benny Acosta <bacosta5@....net>
To:	linux-kernel@...r.kernel.org
Subject: smp incompatible Nvidia mcp61s mainboard chip set

When using a kernel that has smp support enabled the computer will 
randomly power down. It does not happen when using a non-smp kernel. 
There is also no problem when using M$ with this chip set. There are no 
error messages. It just shuts down. Because of this I'm unable to make 
full use of my dual core. Which of course sucks. ;-)

I attached a copy of my dmesg so you can see what hardware I'm using.

I'm using ide hard drives cause I'm too broke to buy up to date sata 
drives. I lost one of my drives because of the power downs. So now I'm 
broke with one less drive. :-(

Below is a request for help I sent to the board manufacturer. It's 
worthless to you except for the mother board information.
Can you help?

<http://www.ecs.com.tw/ECSWebSite/Support/TSSCaseDetail.aspx#> Contact 
Information

  	First Name

	Benny 	
  	Last Name

	Acosta
  	Your E-mail Address:

	SHILIVAN@...OO.COM <mailto:SHILIVAN@...OO.COM>

<http://www.ecs.com.tw/ECSWebSite/Support/TSSCaseDetail.aspx#> Product 
Information

  	Product Name

	GeForce6100SM-M 	
  	Model Version

	V1.0
  	Product Serial No

	0017214f59bc 	
  	BIOS Version

  	Purchased From

  	Purchased Date

	2007/06/29

<http://www.ecs.com.tw/ECSWebSite/Support/TSSCaseDetail.aspx#> 
Environment Information

  	CPU

	Athalon Dual Core x64
  	Memory

	2 GB
  	HDD

	IDE
  	External VGA Card

	Nvidia Quadro
  	Power Supply

	420 watts
  	Operation System

	Linux (Slackware)
  	Other PCI card / device

	IDE controller card

Detail Problem Description

  	Case ID

	07072110015
  	Problem Subject

	Incompatibility between mcp61s chipset and SMP Linux Kernel

* * * Please Print Page or Write Down Case ID for Your Records * * *

Q&A

ECS Support(USA) 	Posted : GMT 2007/07/23 18:16:03
Unfortunately, our support is limited to Microsoft windows based OS that 
does provide a support on the Linux base OS. You may contact Nvidia for 
the more information on the compatibility issue on the Nvidia chipset 
and your version of the Linux.

Benny Acosta 	Posted : GMT 2007/07/21 19:27:24
If the linux kernel is compiled with symmetric multiprocessing support, 
the computer will power down at random intervals. It runs quite well 
otherwise. But the problem with powering down means that I am unable to 
make full use of the dual core processor. If only one processor is being 
used ( non smp kernel), the mother board is fine. No power downs. With 
no error messages to reference, I have no way of knowing why the system 
would power down. It does not do this with windows. Is there some kind 
of patch available that would allow me to run a linux smp kernel. I 
don't want to replace my motherboard.

View attachment "dmesg.txt" of type "text/plain" (15455 bytes)