Re: CVS commit: src/sys/arch

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

On Sat, Jan 19, 2008 at 11:47:32AM -0500, Perry E. Metzger wrote:
> > I'm not saying it wouldn't be useful to have, but it probably needs a
> > rethink.  I suspect most people use ddb over a serial port for
> > debugging.
> 
> There is no serial port on the majority of new x86 machines. There has
> been a lot of trouble in debugging ACPI support because most laptops
> have (effectively) no remote debugging facility at all.

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.

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.

Joerg