Hi Aneesh,

Adding linaro-dev in the loop as someone else could be also interested

I have reproduced my thermal error with a lava test so you can have a
complete log available here:
http://validation.linaro.org/lava-server/scheduler/job/18564/log_file

As a summary of the problem, the panda board turns off during some
sysbench tests because the SDRAM has exceeded its temperature limit

Regards,
Vincent


On 9 May 2012 14:43, Vincent Guittot <vincent.guit...@linaro.org> wrote:
> Hi Aneesh,
>
> Sorry for this late replay.
>
> I'm working with the Linaro 12.04 developer image which is quite close
> to the Linaro ubuntu one but without IHM.
> Te manifest gives me the following information about the kernel
> linux-image-3.3.1-38-linaro-lt-omap=3.3.1-38.38~lt~ci~00000000000001+1336186099~4fa4ad78
> which should be available here
> :git://git.linaro.org/landing-teams/leb/ti/kernel.git
>
> This issue occurs each time I run some sysbench tests on my panda
> board (revA1). I run several tests which  are 20 seconds long and the
> issue occurs after few minutes
>
> I've check with my finger and the package is quite hot when the issue occurs
>
> Regards,
> Vincent
>
> On 7 May 2012 19:43, Aneesh V <ane...@ti.com> wrote:
>> On 05/07/2012 10:38 AM, Mike Turquette wrote:
>>>
>>> On Thu, May 3, 2012 at 7:47 AM, Vincent Guittot
>>> <vincent.guit...@linaro.org>  wrote:
>>>>
>>>> Hi Amit and Mike,
>>>>
>>>> While stressing the dual cortex-A9 of my panda board ( omap4430 ) with
>>>> the latest Linaro ubuntu developer environment, I reach the following
>>>> message
>>>>
>>>> [  824.996978] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  837.243957] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  839.045318] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  845.168518] emif emif.1: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  901.361663] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  902.082672] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  914.329620] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  925.496124] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  930.537292] emif emif.2: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  938.823333] emif emif.1: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  947.828857] emif emif.1: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  954.312072] emif emif.1: temperature alert before registers are
>>>> calculated, not de-rating timings
>>>> [  982.047271] emif emif.2: SDRAM temperature exceeds operating
>>>> limit.. Needs shut down!!!
>>>> [  982.072784] Power down.
>>>>
>>>> It is something you have already faced ? could something miss in the
>>>> kernel ?
>>
>>
>> That should not happen normally. If all is well, it should happen only
>> if the temperature alert comes during a small window at bootup. Is that
>> the case with you. Which tree and branch are you using. Please send me
>> the details and I will take a look.
>>
>> br,
>> Aneesh

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