On 4 September 2012 10:25, Viresh Kumar viresh.kumar@linaro.org wrote:

Hi Andy,

I am using Panda board with linaro Nano filesystem over SDHC card. When i issue "reboot" command from prompt, it hangs:

root@linaro-nano:/# reboot

Broadcast message from root@linaro-nano (/dev/ttyO2) at 4:44 ...

The system is going down for reboot NOW! root@linaro-nano:/# [ 668.889892] Restarting system.

Is this a know issue?

I hope below mail from me is the solution of this issue too:

----------------------------8<---------------------------8<----------------------

I have struggled today for some time to soft-reset panda board because the switch S1 (PWRON_RESET) resets the board, but doesn't start booting it again from xloader. Prompt simply hangs !!

My kernel was crashing after uncompressing linux... print. I didn't had a debugger to see value of __log_buf variable. So i wanted to soft reset the board and check content of memory at address pointed by __log_buf.

I wanted to keep the contents of RAM as it is, so can't reboot it by unplugging the power cable.

At last i found the trick to soft-reset the board with help of S1 button. Following are the steps:

- Press S1 once, LED D1 will switch off - remove SD card - reinsert the card - Press S1 again, LED D1 will switch on and board is rebooted, keeping RAM's contents as is.

Hope, this will help somebody in future.

-- viresh