From owner-freebsd-stable Thu May 11 6:22:42 2000 Delivered-To: freebsd-stable@freebsd.org Received: from mail.uni-bielefeld.de (mail.uni-bielefeld.de [129.70.4.90]) by hub.freebsd.org (Postfix) with ESMTP id 7C36A37BB20 for ; Thu, 11 May 2000 06:22:35 -0700 (PDT) (envelope-from bfischer@Techfak.uni-bielefeld.de) Received: from frolic.no-support.loc (ppp36-241.hrz.uni-bielefeld.de) by mail.uni-bielefeld.de (Sun Internet Mail Server sims.3.5.1999.05.24.18.28.p7) with ESMTP id <0FUE00L94D4UWC@mail.uni-bielefeld.de> for freebsd-stable@FreeBSD.ORG; Thu, 11 May 2000 15:22:08 +0200 (MET DST) Received: (from bjoern@localhost) by frolic.no-support.loc (8.9.3/8.9.3) id PAA00721; Thu, 11 May 2000 15:21:47 +0200 (CEST envelope-from bjoern) Date: Thu, 11 May 2000 15:21:47 +0200 From: Bjoern Fischer Subject: Re: serial console buglet In-reply-to: ; from mike@argos.org on Thu, May 11, 2000 at 02:10:29AM -0400 To: Mike Nowlin Cc: Kris Kirby , David Miller , freebsd-stable@FreeBSD.ORG Message-id: <20000511152147.A380@frolic.no-support.loc> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-disposition: inline Content-transfer-encoding: quoted-printable User-Agent: Mutt/1.2i References: Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, May 11, 2000 at 02:10:29AM -0400, Mike Nowlin wrote: > Speaking of serial consoles, I keep getting bit by a little bug that is a > descendant of the RS-232 specification (mother) and unterminated signals > (father). >=20 > On some of my machines that have serial consoles connected to (usually) > Wyse 150 & Wyse 60 terminals, they have the annoying habit of not > rebooting if the serial console is turned off... Turn the console on or > pull the serial cable, and the machine proceeds to boot. (3-wire=20 > interface). Without digging into the source yet, I'm guessing there's > something in there that keeps the boot process from starting if there's a= =20 > constant mark/space (don't remember which one -- been a long day) on the > console port. =20 >=20 > #1 - Is this correct? Do you initiate a reboot and then switch off the TTY? Switching off a TTY may look like a BREAK signal to the host side RS232. Bj=F6rn --=20 -----BEGIN GEEK CODE BLOCK----- GCS d--(+) s++: a- C+++(-) UB++++OSI++++$ P+++(-) L---(++) !E W- N+ o>+ K- !w !O !M !V PS++ PE- PGP++ t+++ !5 X++ tv- b+++ D++ G e+ h-- y+=20 ------END GEEK CODE BLOCK------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message