[Sugar-devel] [support-gang] Overclocking XO / General Protection Exeption

[James Cameron]

On Wed, Dec 05, 2012 at 10:16:56AM +0100, Dominik Granada wrote:
> when adding commands from ok prompt:
> ok 4c000014
> ok rdmsr
> ok u.
> ok u.
> ok 65d
> ok wrmsr
> ok boot
> works overclocked fine

The sequence of instructions above is incorrect.  There should be
something before and after the 65d.  I speculate this is only missing
in mail, because these instructions cause an immediate General
Protection Exception for me, before "boot" can be typed.

The same thing should be typed, with ok prompt, or with olpc.fth.

> but adding a line:
>  
> 7de009e 65d 4c000014 wrmsr
> to file /boot/olpc.fth
> makes our image crash. Boot from separate olpc.fth file from usb
> doesn not work either. It works only when clock set to 433/166

Check that you are adding this line exactly as shown, and on the
second line of the olpc.fth file?

The serial numbers are one year apart.

Does the same error happen with OLPC OS?

If not, I suggest asking for dx3 help.

-- 
James Cameron
http://quozl.linux.org.au/