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Kernel hangs on stressing GPU in QWKS-SCM-IMX6DQ

Question asked by Bala Subramaniyam on Jan 11, 2018
Latest reply on Oct 28, 2018 by Bala Subramaniyam


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


I am stressing the GPU by lauching vivante samples multiple time to check the GPU performance of QWKS-SCM-IMX6DQ.


In QWKS-SCM-IMX6DQ, Kernel is crashing very quickly or its hangs. But still i didn't face similar gpu issue in iMX6 Quad/Solo.


gpustress scripts and boot logs are attached
gpustress scripts is used to launch the vivante sample for 120 secs and after it killed all vivante sample.


Is there any known gpu issue particular to SCM module?
Is there any gpu memory leak issue in Linux 4.1.15?


I make some changes in kernel from the reference link (, still issues occurs when i am launching gpustress.


Hoping for a better guidance.


Best regards,