From owner-freebsd-questions Sun Jul 28 15:43:24 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id PAA15100 for questions-outgoing; Sun, 28 Jul 1996 15:43:24 -0700 (PDT) Received: from relay-2.mail.demon.net (disperse.demon.co.uk [158.152.1.77]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id PAA15094 for ; Sun, 28 Jul 1996 15:43:21 -0700 (PDT) Received: from post.demon.co.uk ([158.152.1.72]) by relay-2.mail.demon.net id aj05598; 28 Jul 96 23:43 +0100 Received: from jraynard.demon.co.uk ([158.152.42.77]) by relay-3.mail.demon.net id aa27263; 28 Jul 96 23:42 +0100 Received: (from fqueries@localhost) by jraynard.demon.co.uk (8.7.5/8.6.12) id UAA02702; Sun, 28 Jul 1996 20:09:59 GMT From: James Raynard Message-Id: <199607282009.UAA02702@jraynard.demon.co.uk> Subject: Re: vnode_pager_input: I/O read error To: "Keith Beattie[SFSU Student]" Date: Sun, 28 Jul 1996 20:09:59 +0000 () Cc: questions@freebsd.org In-Reply-To: <199607271929.MAA09047@george.lbl.gov> from "Keith Beattie[SFSU Student]" at Jul 27, 96 12:29:37 pm X-Mailer: ELM [version 2.4 PL24 ME8a] Content-Type: text Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > Things are getting worse. When I boot, fsck fails and running it > manually it succeds on my first ide drive (the one with / on it) but > then while checking my SCSI drive it dies from a sig 8: > > --- manual fsck run --- > *** /dev/rsd0s1e > BAD SUPERBLOCK: VALUES IN SUPERBLOCK DISAGREE WITH THOSE IN FIRST ALTERNATE > pid 13: fsck: uid 0: exited on signal 8 > floating exception > --- manual fsck run --- > > I tried it several times and it always dies the same way. Hmm. Signal 8 is SIGFPE (floating point exception). This could just be as simple as fsck trying to divide something by zero. > I don't have any spare ones. I'd just have to remove one bank at a > time. But are sig 8's indicative of bad SIMMs? Not that I know of. I would have thought this indicated some kind of motherboard problem, at a guess - or maybe the filesystem on /dev/rsd0s1e has been trashed beyond fsck's ability to repair it. > I *need* this to be a software problem, I can spare the time to > reformat/reintsall/whatever, new hardware is a different story... I would certainly try installing from scratch again. Let's try and be more positive about the hardware possibilities - maybe your cache settings are a bit too aggressive, in which case it's worth tweaking about with the BIOS settings (after making a note of them, of course). Or you may have an overheating CPU - try taking the case off the machine, or switching on the CPU fan if you have one. Also, it has been known for unscrupulous vendors to try and pass off CPUs as being higher-rated than they really are (eg selling P90's as P100's). FreeBSD prints out the true CPU speed when it boots.