From owner-freebsd-stable Wed Apr 24 22:05:47 1996 Return-Path: owner-stable Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id WAA15622 for stable-outgoing; Wed, 24 Apr 1996 22:05:47 -0700 (PDT) Received: from ki.net (root@ki.net [205.150.102.1]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id WAA15615 for ; Wed, 24 Apr 1996 22:05:44 -0700 (PDT) Received: from freebsd.ki.net (root@freebsd.ki.net [205.150.102.51]) by ki.net (8.7.4/8.7.4) with ESMTP id BAA02773; Thu, 25 Apr 1996 01:05:43 -0400 (EDT) Received: from localhost (scrappy@localhost) by freebsd.ki.net (8.7.5/8.7.5) with SMTP id BAA01545; Thu, 25 Apr 1996 01:05:42 -0400 (EDT) X-Authentication-Warning: freebsd.ki.net: scrappy owned process doing -bs Date: Thu, 25 Apr 1996 01:05:41 -0400 (EDT) From: "Marc G. Fournier" To: Michael Smith cc: stable@freebsd.org Subject: Re: 9 makes + 1 caused panic... In-Reply-To: <199604250320.MAA22274@genesis.atrad.adelaide.edu.au> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-stable@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Thu, 25 Apr 1996, Michael Smith wrote: > Marc G. Fournier stands accused of saying: > > > > > > fp is dereferenced a few lines above, and I can't imagine how the structure > > > would have become write-protected by accident... > > > > > > > hardware or software bug then? :( > > Almost certainly hardware; modulo any judgement by John wrt. the changes > he's made in the VM area in the last few days. Most of them had to do > with accidentally unmapping more than was apprpriate, which would > have given you a 'page not present' fault, not a 'write protect' fault. > Okay, I have the new pmap code in place, and a fresh kernel...tomorrow I'll try once more to force the machine to panic...I'm working at getting a new "simple" machine put together that I can pressure test and put online, but its goingn to take a couple of weeks, so have to make due with what I have now :( Marc G. Fournier scrappy@ki.net Systems Administrator @ ki.net scrappy@freebsd.org