From owner-freebsd-questions@FreeBSD.ORG Wed May 28 18:27:27 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 42D0F1065677 for ; Wed, 28 May 2008 18:27:27 +0000 (UTC) (envelope-from parish@magichamster.com) Received: from jedburgh.just4dns.com (jedburgh.just4dns.com [78.129.134.130]) by mx1.freebsd.org (Postfix) with ESMTP id E0FAD8FC12 for ; Wed, 28 May 2008 18:27:26 +0000 (UTC) (envelope-from parish@magichamster.com) Received: from [86.153.243.228] (helo=movens.plus.com) by jedburgh.just4dns.com with esmtp (Exim 4.68) (envelope-from ) id 1K1QMR-0003dc-RP for freebsd-questions@freebsd.org; Wed, 28 May 2008 19:26:56 +0100 Received: from [10.10.1.4] (redshift [10.10.1.4]) by postbag.localdomain (Postfix) with ESMTP id 57D531CC85 for ; Wed, 28 May 2008 19:27:08 +0100 (BST) Message-ID: <483DA3FA.9030404@magichamster.com> Date: Wed, 28 May 2008 19:27:06 +0100 From: Mark Ovens User-Agent: Thunderbird 2.0.0.14 (X11/20080524) MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Fuzioned-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: 1K1QMR-0003dc-RP X-Fuzioned-MailScanner: Not scanned: please contact your Internet E-Mail Service Provider for details X-Fuzioned-MailScanner-SpamCheck: X-Fuzioned-MailScanner-From: parish@magichamster.com X-Spam-Status: No X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - jedburgh.just4dns.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - magichamster.com X-Source: X-Source-Args: X-Source-Dir: Subject: External USB disk won't mount X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 May 2008 18:27:27 -0000 Bought an external USB HD enclosure but it doesn't work under FreeBSD. Under FreeBSD-6.3-STABLE: umass0: Super Top USB 2.0 IDE DEVICE, rev 2.00/2.01, addr 2 da2 at umass-sim0 bus 0 target 0 lun 0 da2: Fixed Direct Access SCSI-0 device da2: 40.000MB/s transfers da2: 38172MB (78177792 512 byte sectors: 255H 63S/T 4866C) # mount /dev/da2s1f /mnt # ls /mnt # (The disk is from another FreeBSD system so is UFS2 and da2s1f is /usr on the other system) So although it mounts, nothing is visible. After a few minutes this happens: umass0: at uhub3 port 1 (addr 2) disconnected (da2:umass-sim0:0:0:0): lost device (da2:dead_sim0:0:0:0): Synchronize cache failed, status == 0x8, scsi status == 0x0 (da2:dead_sim0:0:0:0): removing device entry umass0: detached Tried it under 7.0-RELEASE and it's even worse - it crashes the kernel with Fatal Trap 12: page fault in kernel mode. (forget the exact wording of the message, but it's definitely Fatal Trap 12). So is this just a case of the device not complying with USB standards - the manufacturer just tests it under Windows and that's good enough - or is there a way to solve this? I can confirm that the disk is good as I borrowed another enclosure to try and that works as expected. Regards, Mark