From owner-freebsd-hackers Tue Feb 21 18:33:30 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id SAA22548 for hackers-outgoing; Tue, 21 Feb 1995 18:33:30 -0800 Received: from augean.eleceng.adelaide.edu.au (daemon@augean.eleceng.adelaide.edu.au [129.127.28.4]) by freefall.cdrom.com (8.6.9/8.6.6) with SMTP id SAA22542 for ; Tue, 21 Feb 1995 18:33:27 -0800 Received: by augean (5.61+IDA+MU/4.8.36) id AA21379 for freebsd-hackers@freebsd.org; Wed, 22 Feb 1995 13:02:37 +1030 Message-Id: <9502220232.AA21379@augean.eleceng.adelaide.edu.au> Received: by frenzy (4.1/COMMUNICA1.2-950118) id AA09758 for freebsd-hackers%freebsd.org@augean.oz; Wed, 22 Feb 95 12:57:17 CDT From: mark@communica.oz.au (Mark Newton) Subject: Re: 2.0-950210-SNAP hangs To: mrm@sceard.com Date: Wed, 22 Feb 1995 12:57:16 +1030 (CST) Cc: freebsd-hackers@FreeBSD.org In-Reply-To: <9502201012.AA02353@Sceard.COM> from "mrm%Sceard.COM@augean.ua.oz" at Feb 20, 95 10:12:01 am X-Mailer: ELM [version 2.4 PL21] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Content-Length: 706 Sender: hackers-owner@FreeBSD.org Precedence: bulk > >Does anyone have any suggestions on how to debug a problem like this > >when there is no indication of where to start before it manifests itself > >and no way to perform a post mortem after it has happened? > > Yeah, fun. Where are those front panel lights when you need 'em? Y'know, that's something I've often thought about: An ISA-bus profile card with jumpers on it connecting LEDs to bus lines, with the LEDs inset into a 5.25" drive bay blanking plate -- Blinkenlites on a PeeCee! It'd be worth it for the debugging value it'd have the potential to have, and even more worth it for the strange looks it'd get. One of these days I may even be in a dumb enough mood to do it :-) - mark