On Mon, Oct 30, 2023 at 09:30:15AM +0100, Greg KH wrote: > On Mon, Oct 30, 2023 at 10:15:30AM +0200, ariel marcovitch wrote: > > > Please realize that usb-serial console was the result of me loosing a > > > drunken bet. It's amazing it works at all. For "fake" devices like > > LOL your drunken bet was quite helpful to some people > > Because modern PCs come without a serial port, I wanted to use it to > > see early logs on my crashing kernel without having to use printk > > delay and things like that. > > I'm curious as to how kernel people debug PCs in general... > > We use a usb debug port connection (it's a special cable). Sometimes people use netconsole (see Documentation/networking/netconsole.rst). I don't know how common it is nowadays, and it may not be quite as reliable as a debug port device, but it should still work. And it doesn't require special hardware. Alan Stern
