Hello,
I am trying to debug the Linux Kernel remotely using KGDB over the serial port.
I followed the instruction shown here: https://elinux.org/images/1/1b/ELC19_Serial_kdb_kgdb.pdf but can't make it to work. This is what I get:
- I can do echo ttyLP0 > /sys/module/kgdboc/parameters/kgdboc and it gets successfully registered (note: ttyLP0 is my console too)
- when I do echo g > /proc/sysrq-trigger I get messages telling that the kernel dropped into kdb, then I see the kdb prompt but it stops there, when I try to type nothing happens
I have the idea that it may involve the polling functions lpuart32_poll_put_char and lpuart32_poll_get_char but I do not know how to debug it.
It would be great to know if someone from NXP ever tried it.
BR,
Lorenzo
