I have imx6ul sbc connector board running kernel version 4.1.39-dey+gf1810a3
Currently the cmdline:
console=ttymxc4 cma=96M mtdparts=gpmi-nand:3m(bootloader), ... rootfstype=ubifs rw quiet
I am not sure to add something like crashkernel=50M rootwait etc. to enable core dump for debugging program crashing.
Or some other ways or tools for crashing debugging?