On Wed, May 31, 2023 at 03:18:02PM +0800, Hongyu Xie wrote: > It was inspired by kgdboc. > > This is a debug module that allows you to get all kernel logs > after panic. > > Normally you need to attach a USB-to-UART tool or enable kdump > before panic happens to get log from kernel after panic. If you > didn't do that and kdump is not working, you can't get any log to > know what happened before panic. If you have a USB-to-UART tool > and the uart port on your computer is working. This module helps > you to get all kernel log after panic() is called. > > To use this, see Documentation/dev-tools/panic_serial_helper.rst. > > Tested on arm64 device. > > Signed-off-by: Hongyu Xie <xiehongyu1@xxxxxxxxxx> > --- > > v3: > 1. modify the document about this module. > 2. provide case-ignored filter matching. Why is this a RESEND? It's a RFC, I can't apply it, as obviously you do not feel like it is completed. What needs to be done to make you feel comfortable with it? thanks, greg k-h
