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.