On 02/21/2011 02:26 PM, Somebody in the thread at some point said:
Hi -
Also, pressing the PWRON_RESET button does not reboot the system.
Hi Avik, I suspect you are now hitting the power off bug [1]. It seems to strike at random places in the boot for different people/images.
[1] https://bugs.launchpad.net/ubuntu/+source/linux-linaro/+bug/708883
This sounds like the right diagnosis... in which case you should be able to work around it using the patch I added to #37 on that bug.
-Andy