From owner-freebsd-current@FreeBSD.ORG Sat Sep 13 00:56:23 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C33B716A4BF for ; Sat, 13 Sep 2003 00:56:23 -0700 (PDT) Received: from mail.libertysurf.net (mail.libertysurf.net [213.36.80.91]) by mx1.FreeBSD.org (Postfix) with ESMTP id A502443FA3 for ; Sat, 13 Sep 2003 00:56:22 -0700 (PDT) (envelope-from raoul.megelas@libertysurf.fr) Received: from videotron.ca (195.242.97.46) by mail.libertysurf.net (6.5.034) id 3F557566005B2164 for freebsd-current@freebsd.org; Sat, 13 Sep 2003 09:56:21 +0200 Received: from raoul.megelas by port.private.music with local (Exim 4.20) id 19y5G4-0000ED-82 for freebsd-current@freebsd.org; Sat, 13 Sep 2003 09:55:52 +0200 Date: Sat, 13 Sep 2003 09:55:52 +0200 From: "raoul.megelas" To: freebsd-current@freebsd.org Message-ID: <20030913075552.GA852@libertysurf.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4i Subject: re: usb flashkey X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Sep 2003 07:56:23 -0000 hello all, I tested the flashkey with and without fsync. Infortunately the result is the same in all cases: a random write fault for one byte at each time, repeated at random places. With a 32Mb (old model i think) flashkey, all is correct and repeated writes are ok. Reading operations are correct (a bad file is always bad for current and for XP. The flashkey runs quite well on XP (verifyed a big number of times on writing). errors occur at any place on the flashkey (msdos-sys) as attested by a partial copy of the flashkey done by dd: (bootmbr fats directory, and of file). Writing errors are not systematic, and sometimes all goes fine. At my sense, it looks like a time problem or as mentionned by Bruce Evans or an interrupt problem. Hope this can help. Best regards. raoul raoul.megelas@libertysurf.fr