Hi NXP technical engineers:
We are using MIMX8MM6DVTLZAA+MT40A512M16LY-075:E (DDR4) to run Android 9.0 system, after connecting to the screen (MIPI 1280*800+TP), let the machine hang up, don't run any stress test tool, just run the system .
However, after running for 8-72 hours, the system has issues with crashes and restarts. After disabling the WDOG_B function of the PMIC (PCA9450A), the system will not restart, but it will get stuck and the peripherals cannot be used, which is equivalent to power off and shutdown.
When rebooting, there are usually no logs (as shown in the image below), and several of the logs that are caught by chance (as attached) point to kernel errors.
Meanwhile, we did a test and the machine running MemTester hasn't crashed yet. It's been running for about 72 hours, but the stationary computer has crashed and restarted. At the same time, if the screen and TP (mask) are not connected, the time to reproduce the crash will be prolonged.
We are very confused right now and don't know how to capture more logs, including how to find what caused the watchdog to time out and restart. I hope you can give me some advice, thanks.
