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PROCESSOR-SDK-AM437X: AM437x based Custom Hardware


Hi Team,

Here is an issue related to low temperature working scenario.

We have the DDR3 DRAM, that is available on the Custom Hardware based on AM437x.

The Kernel version is 4.19 and is inline with TI SDK 6.0.

There is a regression testing done on this Hardware at different temperatures (-10 degree and 55 degree Celsius).

During room temperature and high temperatures, there is no memory segmentation issue.

But when run at -10 degree Celsius, a  memory segmentation fault is observed, but the test script continues to execute.

A kernel crash is also reported as:

Internal error: Oops - undefined instruction: 0 [#1] PREEMPT ARM

Backtrace: invalid frame pointer 0xeb00f7d0

This crash is commonly seen at -10 degree only.

Any support is appreciated.

Annapurna B