Date: Wed, 9 Jun 1999 15:48:58 -0300 (ADT) From: The Hermit Hacker <scrappy@hub.org> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: freebsd-current@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: MMAP() in STABLE/CURRENT ... Message-ID: <Pine.BSF.4.05.9906091547200.49155-100000@thelab.hub.org> In-Reply-To: <199906091835.OAA35583@cs.rpi.edu>
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On Wed, 9 Jun 1999, David E. Cross wrote:
> by "break" I mean a serial break condition. Take the Tx line out of your
> box and bring it negative 3-5 volts for a short time, that will be a break.
>
> Seriously, the break will need to be sent from the piece of equipment that is
> connected to the other end of the serial line. It isn't a telnet issue at all.
> There should be a way to drop into a command mode on the livingston (I have
> never used one, so I don't know how), and send a RS-232 break to the remote
> side. After that go back to terminal mode, you should be at a DDB prompt.
> "trace" should give you what we want to see. Also, if you can configure
> 'dumpon' and 'savecore' (man savecore, see 'dumpon' in /etc/rc.conf), at that
> prompt enter 'panic' to get a core dump of your system... you may have to
> enter 'panic' more than once.
Actually, I have all that enabled, but don't have a file system large
enough to dump to :( memory is 384Meg, swap is another 1.6gig :)
Will look into the break thing...don't believe there is a way of doing it,
but have to search the docs to be certain...thanks...
Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
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