On Fri, Jun 16, 2023 at 10:31:15AM +0800, Hongyu Xie wrote: > 在 2023/6/15 18:17, Greg KH 写道: > > On Wed, Jun 14, 2023 at 10:55:12AM +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 an arm64 device. > > > > > > Signed-off-by: Hongyu Xie <xiehongyu1@xxxxxxxxxx> > > > --- > > > > Why is this a RESEND? What's wrong with the previous version? > Nobody review v4 for over a week. That's fine, but you need to say _why_ this is being resent, otherwise we have no idea, and this just moves to the bottom of our review queue. thanks, greg k-h
