Excellent job on the firewire support!

[Greg 'groggy' Lehey]

On Tuesday, 20 July 2004 at 11:41:52 +0900, Hidetoshi Shimokawa wrote:
> (sorry for resending)
>
> At Sun, 18 Jul 2004 21:04:53 +0100,
> Doug Rabson wrote:
>>> 2) Is dcons usable after a panic (ie, DDB or KDB_TRACE)?  Or is it
>>>    only usable for remote-gdb?
>>
>> Dcons provides two full duplex streams - one for console and one for
>> gdb. You can use DDB on the console just like normal.
>
> It's designed for such panic/debugging situation.
> Actually, it's rather inefficient for usual situation
> but the speed of FireWire hide the problem ;-)

I think that the most spectacular use of firewire is debugging a
completely hung system.  If you've already attached, the debugger can
still access the memory of a system which isn't reacting *at all*.
Obviously you can't continue execution, but just seeing what's in
memory is a great advantage.

On the other hand, it was my understanding that marcel's new kernel
debugging framework broke firewire debugging.  What's the current
status there?

Greg
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