i.MX8MP Linux 5.4.70 develop the PSTORE/RAMOOPS

zhuliushun — Wed, 28 May 2025 08:53:35 GMT

My board is i.MX8MP，and the Linux system version is 5.4.70.Now I want to develop the pstore to store the panic log,but there is something wrong which i couldn't understand.

I refer the article:Kdump + Crash in I.MX - NXP Community

my config as follows:

CONFIG_PSTORE_PMSG=y

CONFIG_PSTORE=y

CONFIG_PSTORE_RAM=y

CONFIG_PANIC_ON_OOPS=y

CONFIG_PSTORE_CONSOLE=y

CONFIG_PANIC_TIMEOUT=1

and my dts is configed as below:

ramoops@0x91f00000 {

compatible = "ramoops";

reg = <0 0x91f00000 0 0x00100000>;

record-size = <0x00020000>;

console-size = <0x00020000>;

ftrace-size = <0x00020000>;

pmsg-size = <0x00020000>;

};

then i make linux panic with the instruct “echo 1 > /proc/sys/kernel/panic”

after the instruct "echo 1 > /proc/sys/kernel/panic". the linux panic ant wait some time,the system reboot.

later i check,there is nothing in the path /sys/fs/pstore. failed to capture the kernal panic,

is there somthings wrong?

please,thank you

Re: i.MX8MP Linux 5.4.70 develop the PSTORE/RAMOOPS

Zhiming_Liu — Thu, 05 Jun 2025 03:08:29 GMT

Hi,

You can refer this knowledge base:

Test pstore/ramoops based on Android 13 - NXP Community

Best Regards,
Zhiming

i.MX Processors中的主题 Re: i.MX8MP Linux 5.4.70 develop the PSTORE/RAMOOPS

i.MX8MP Linux 5.4.70 develop the PSTORE/RAMOOPS

Re: i.MX8MP Linux 5.4.70 develop the PSTORE/RAMOOPS