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 -- Note: I discard all HTML mail unseen. Finger grog_at_FreeBSD.org for PGP public key. See complete headers for address and phone numbers.
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