From owner-freebsd-hackers Sun Oct 19 12:40:35 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id MAA28186 for hackers-outgoing; Sun, 19 Oct 1997 12:40:35 -0700 (PDT) (envelope-from owner-freebsd-hackers) Received: from dyson.iquest.net (dyson.iquest.net [198.70.144.127]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id MAA28177 for ; Sun, 19 Oct 1997 12:40:30 -0700 (PDT) (envelope-from toor@dyson.iquest.net) Received: (from root@localhost) by dyson.iquest.net (8.8.7/8.8.5) id OAA04475; Sun, 19 Oct 1997 14:39:00 -0500 (EST) From: "John S. Dyson" Message-Id: <199710191939.OAA04475@dyson.iquest.net> Subject: Re: nasty problem with vnode and other disk drivers? In-Reply-To: <19971019170838.1109.qmail@iq.org> from Julian Assange at "Oct 19, 97 05:08:38 pm" To: proff@iq.org (Julian Assange) Date: Sun, 19 Oct 1997 14:39:00 -0500 (EST) Cc: freebsd-hackers@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL31 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Julian Assange said: > > > Surely this can't be correct behavior: > > # cp /usr/share/dict/words words > # head words > A > a > aa > aal > aalii > aam > Aani > aardvark > aardwolf > Aaron > # vnconfig /dev/vn0 words > # dd if=/dev/rvn0 bs=8 count=10 > A > a > aa > aA > a > aa > aA > a > aa > It isn't expected behavior, but raw, block devices currently need I/O on 512 byte boundarys for integrals of 512 byte lengths. John