sysrq issue on i.mx8mp

[jimmyli]

Hello NXP,

      I'm encountering a sysrq issue shown below.

      Hope you can check and provide some tips.

      Thanks very much.

1>platform

    software: linux L5.10.72

    hardware: i.mx8m plus

2>issue screen shot

[Zhiming_Liu]

Hi @jimmyli 

请贴上两个详细的log文件。

Best Regards,
Zhiming

[hugs]

panic_log.txt is the log file for abnormal events;
normal_log.log is the boot log file for normal events.

[Zhiming_Liu]

Hi @hugs 

This issue seems strange, as if something manually triggered the OOM.

Did you connect other devices on i.MX8MP during test? If yes, you can disconnect other interfaces, only reserve uart and power. 

The another idea is about uart driver in RT kernel, you can disable RT feature to check the difference.

Best Regards,
Zhiming

[hugs]

The device is being tested, and the UART connection has been disconnected.
Is there a keyboard input method that can access the sysrq module?
I tried pressing Alt+Sysrq+F, but it didn't work.