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Date:      Sun, 5 May 2002 21:11:34 -0500 (CDT)
From:      Mike Silbersack <silby@silby.com>
To:        Ian <freebsd@damnhippie.dyndns.org>
Cc:        freebsd-hackers <freebsd-hackers@freebsd.org>
Subject:   Re: what causes a userland to stop, but allows kernel to continue ?
Message-ID:  <20020505210947.N57177-100000@patrocles.silby.com>
In-Reply-To: <B8FB3F7F.CB0A%freebsd@damnhippie.dyndns.org>

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On Sun, 5 May 2002, Ian wrote:

> "break into" how?  He said the local console keyboard was totally
> unresponsive and you can't ssh in.  If hitting the capslock key doesn't
> cause the corresponding LED to toggle, doesn't that imply that the keyboard
> interupts aren't getting handled?
>
> It's times like this when it's handy that old Macs had a physical button on
> front to create an NMI to get you into the debugger.
>
> -- Ian

Just because caps lock isn't working doesn't mean that he won't be able to
break into DDB w/ ctrl-alt-esc.  Remember that getty is a process like any
other, and that caps lock is a per-tty property, not a keyboard function.
DDB hooks into the keyboard at a lower level, and should still work.

Mike "Silby" Silbersack


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