From owner-freebsd-current Sun Jul 20 17:12:52 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id RAA09498 for current-outgoing; Sun, 20 Jul 1997 17:12:52 -0700 (PDT) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.50]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id RAA09493 for ; Sun, 20 Jul 1997 17:12:49 -0700 (PDT) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id RAA10173; Sun, 20 Jul 1997 17:10:42 -0700 From: Terry Lambert Message-Id: <199707210010.RAA10173@phaeton.artisoft.com> Subject: Re: Insertion of NUL's (was: Re: -current :) To: kew@timesink.spk.wa.us (Keith Walker) Date: Sun, 20 Jul 1997 17:10:42 -0700 (MST) Cc: freebsd-current@FreeBSD.ORG In-Reply-To: <199707200240.TAA09578@phobos.walker.dom> from "Keith Walker" at Jul 19, 97 07:40:29 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk [ ... NUL insertion ... ] > Oh good grief, I retired my only QIC-02 tape drive because I thought it was screwed up and inserting NUL's. Tapes made with tar (and I think dump, but I can't remember for sure) would have blocks of ^@'s inserted every once in a while, certainly enough to render a tape backup useless. > > Could this be related to the above problem? Or is my tape drive (circa 1987) actually broke? (Being's how the tape drive is so old, I don't have any DOS utilities to check the thing :-) I think the tape is probably toast. It's unlikely to interact this way, since it doesn't deal with the idea of partial pages. I believe the problem is with backing store for the FS, not devices (I could be wrong; when did it start behaving badly? Is it consistent? If so, try running it under an older -- 2.2 or earlier -- kernel to see). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.