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Watchdog reboot on overloading GPU in SCM IMX6Q

Question asked by Parthasarathy R on Aug 14, 2017
Latest reply on Oct 24, 2017 by Taehyuk Kwon

Hi,

 

I am using Linux imx-4.1.15-2.0.0_ga release and Yocto krogoth build.

 

I have stress tested GPU with glmark2 GPU application to check for over heating of IMX6 SCM when running GPU.

 

IMX6 SCM is very quickly reaching the threshold of 85 degree and reducing the GPU clock to 1/64. I have launched multiple instances of glmark2 application to overheat the module.

 

On doing this test occasionally i got system reboot, this happens after being in non-responsive state for sometime. Display is going blank when system enters the non-responsive state.

 

Is there any latest patch which fix this issue?

Is there any known issue particular to SCM module?

 

There is a separate release for SCM Yocto BSP for SCM-i.MX L4.1.15-2.0.0_ga 

Will this make any difference in BSP/Kernel or in fixing this issue?

 

Looking forward for some response. Meantime i am planning to build above release and test it.

 

Thanks,

Partha

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