From owner-freebsd-hackers Tue Nov 26 04:19:12 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id EAA00284 for hackers-outgoing; Tue, 26 Nov 1996 04:19:12 -0800 (PST) Received: from eac.iafrica.com (196-7-192-126.iafrica.com [196.7.192.126]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id EAA00270 for ; Tue, 26 Nov 1996 04:18:56 -0800 (PST) Received: (from rnordier@localhost) by eac.iafrica.com (8.7.6/8.6.12) id OAA02818; Tue, 26 Nov 1996 14:14:53 +0200 (SAT) From: Robert Nordier Message-Id: <199611261214.OAA02818@eac.iafrica.com> Subject: Re: A simple way to crash your system. In-Reply-To: from Snob Art Genre at "Nov 26, 96 03:31:39 am" To: ben@narcissus.ml.org (Snob Art Genre) Date: Tue, 26 Nov 1996 14:14:50 +0200 (SAT) Cc: hackers@freebsd.org X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Snob Art Genre wrote: > On Tue, 26 Nov 1996, Robert Nordier wrote: [ ... ] > > *All* problems occurred with the DOS FS on a 64/63 IDE drive. FIPS > > was not necessarily used. In one case, the corrupted UFS fs was > > actually on another drive. > > > > Unless someone is aware of the problem being more general, it may > > be worth patching the msdosfs code to (by default) refuse to access > > DOS FSes with > 16 sectors per cluster on such drives. > > > > Or at least warn that 64/63 IDE setups are particularly vulnerable. > > My drive was/is SCSI. Too bad: this seemed like yet another reason for avoiding IDE. Anyone ever encountered corruption accessing a DOS partition with <= 16 sectors per cluster? -- Robert Nordier