my board：i.MX8MP
Linux Version：5.4.70
rootfs：Yocto
Now I want to develop the pstore fucntion to store the log when there is a panic happened.
my config about kernel and dts as follows:
CONFIG_PSTORE=y
CONFIG_PSTORE_CONSOLE=y
CONFIG_PSTORE_PMSG=y
CONFIG_PSTORE_RAM=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_TIMEOUT=1
and my dts config as below:
ramoops@0x91f00000 {
compatible = "ramoops";
reg = <0 0x91f00000 0 0x00100000>;
record-size = <0x00020000>;
console-size = <0x00020000>;
ftrace-size = <0x00020000>;
pmsg-size = <0x00020000>;
};
and i make kernel panic with the instruct "echo 1 >/proc/sys/kernel/sysrq;echo c >/proc/sysrq-trigger"
later the kernel panic and reboot.but the folder /sys/fs/pstore is empty, the panic log wasn't stored.
and the pstore is mounted OK.is there something wrong?please
