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.guittot@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 aneesh@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.guittot@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