[fedora-arm] Someone interested in Pandaboard ES?

[Пламен Христов]

2014-12-20 3:29 GMT+02:00 Andy Green <andy at warmcat.com>:

>
>
> Is it really idle?  Something seems to be making him abnormally hot.
>
> Any clues in top or cat /proc/interrupts?
>

I think about that. I belive it is not related to interrupts or overload,
because the system responce is very good. Also htop reported just a few
percent load on both cores. Which is OK for XFCE, browser and several
Terminals.
I will make new logs soon.


> It's be nice if there was some interrupt going nuts we could see in
> /proc/interrupts making execessive latency.
>

I will also try detach any external hardware, once activate ssh.



>
> How about the U-Boot / MLO pieces?  They have nasty deps like gpu clock
> state and default GPIO state.
>
>
I didn't understand U-Boot and MLO yet. But loader/configuration is stock
Fedora one.
It happen on two clean F21 installations on different flash cards.
Before Fedora I tested Arch Linux Arm. Could that changed some firmware
configuration? Is it a way to reset?


> If the only clue is excess heat it can be something like a contended SoC
> GPIO.
>
> -Andy
>
>
I doubt that too. I didn't used GPIO's and board is as clean as new. Unless
it is defective.

My guess for now is that software somehow toggle wrong voltage/frequency.
Is it a way to directly check that?

Maybe I will test with some old software that panda advertises, to see what
will happen than. But don't know when, because it can take some more time.
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