Re: CVS commit: src/sys/arch

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Sun, Jan 20, 2008 at 10:40:42PM -0800, Tom Spindler wrote:
> > Please don't use ACPI as justification when it mostly doesn't apply.
> > The problems for ACPI debugging were not lack of serial console. A
> > serial console doesn't help you that much right after resume as it is
> > dead as well.
> 
> The lack of any available console support didn't help one iota - and
> traditionally, PC's serial ports require practically nil setup.

For ACPI debugging, e.g. after suspend-to-RAM you are lucky if you get
the text console back. You *certainly* don't get a configured serial
console on most systems.

> > Many laptops actually have a far superior interface for debugging:
> > firewire. The support for that is at least seriously underdocumented.
> > Not sure if the gdb/kgdb support exists at all.
> 
> Personally, I prefer a even nominally working method to a theoretically
> better, not-existing-in-practice one. (I'd love to be proven wrong about
> the 'not existing in practice'; it might encourage me to get a firewire
> PC card for my laptop.)

FreeBSD has the support. I do not know how much work is involved in
porting it, I don't have the interest for that.

Joerg