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Date:      Thu, 15 Aug 1996 18:56:43 -0700 (MST)
From:      Terry Lambert <terry@lambert.org>
To:        msmith@atrad.adelaide.edu.au (Michael Smith)
Cc:        jlemon@americantv.com, joerg_wunsch@uriah.heep.sax.de, freebsd-hackers@FreeBSD.ORG, sos@FreeBSD.ORG
Subject:   Re: locking up
Message-ID:  <199608160156.SAA01893@phaeton.artisoft.com>
In-Reply-To: <199608160155.LAA16474@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Aug 16, 96 11:25:53 am

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> > Yet I still get random lockups.  :-(
> 
> LED state is updated at every VC switch, even if the LEDs are all off.
> 
> The biggest problem with automating a recovery from the hung state is that
> it's almost impossible for the keyboard driver to tell the difference
> between a hung keyboard and a user off making a coffee.
> 
> None of the reset methods that I know of are safe enough to run on a 
> regular basis - you'd have too many people complaining about losing 
> keystrokes.  I guess you could have a 'no LEDs' option for syscons 
> for people who lock up too regularly...

Yet, DOS does it.

I suspect that it would be a good idea to disassemble the ROMs for
the keyboard handling code on machines which misbehave.  This will
tell you once and for all what the problem is for that machine.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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