topic Re: sysrq issue on i.mx8mp in i.MX Processors

sysrq issue on i.mx8mp

jimmyli — Wed, 21 Jan 2026 01:15:07 GMT

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

Re: sysrq issue on i.mx8mp

Zhiming_Liu — Wed, 21 Jan 2026 05:35:29 GMT

Hi @jimmyli

请贴上两个详细的log文件。

Best Regards,
Zhiming

Re: sysrq issue on i.mx8mp

hugs — Thu, 22 Jan 2026 01:30:09 GMT

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

Re: sysrq issue on i.mx8mp

Zhiming_Liu — Thu, 22 Jan 2026 07:13:36 GMT

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

Re: sysrq issue on i.mx8mp

hugs — Thu, 22 Jan 2026 12:24:15 GMT

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.