在 2023/6/16 14:03, Greg KH 写道:
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.
"Nobody review v4 for over a week." was the reason. I should resubmit
the same patch or ping instead of using "RESEND", is that what you mean?
thanks,
greg k-h
thanks,
Hongyu Xie
