From owner-freebsd-fs@FreeBSD.ORG Mon Jul 2 18:02:47 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 33F371065677 for ; Mon, 2 Jul 2012 18:02:47 +0000 (UTC) (envelope-from rar102@ra.msstate.edu) Received: from catalpa.its.msstate.edu (catalpa.its.msstate.edu [130.18.2.119]) by mx1.freebsd.org (Postfix) with ESMTP id AFDEF8FC12 for ; Mon, 2 Jul 2012 18:02:46 +0000 (UTC) Received: from riehlepc.localnet (ws62-55.hilbun.dynamic.msstate.edu [130.18.55.62]) (authenticated bits=0) by catalpa.its.msstate.edu (8.13.8/8.13.8) with ESMTP id q62HxrtY008942 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 2 Jul 2012 12:59:54 -0500 X-Sender: From: "R. Riehle" Organization: Miss. State Dept. of Physics & Astronomy To: freebsd-fs@freebsd.org Date: Mon, 2 Jul 2012 12:59:49 -0500 User-Agent: KMail/1.13.7 (FreeBSD/8.3-STABLE; KDE/4.8.4; amd64; ; ) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <201207021259.49364.rar102@ra.msstate.edu> Subject: usb3 zpool disappears X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jul 2012 18:02:47 -0000 I have an amd64 machine running freebsd 8-stable with three zpools, two on internal drives and one on an external Western Digital usb3 drive. When I rebuilt my world last week the pool on the external drive refused to mount. The other two pools are fine. The drive and the usb3 card seem to be intact. Some failed attempts to solve the problem: 1. zfs mount -a No response but doesn't hang. 2. zpool mount bigpool hangs 3. zpool status hangs forever. I waited for 24 hours. No instability. No logs. No appreciable cpu usage. It just stays there. 4. zfs status See #3 5. zpool mount -f bigpool hangs indefinitely just like #2, 3 Snippets from dmesg: : xhci0: mem 0xfeaf0000-0xfeafffff,0xfeaee000-0xfeaeffff irq 17 at device 0.0 on pci4 xhci0: [ITHREAD] xhci0: 64 byte context size. : ugen4.2: at usbus4 umass0: on usbus4 umass0: SCSI over Bulk-Only; quirks = 0x4100 umass0:2:0:-1: Attached to scbus2 da0 at umass-sim0 bus 0 scbus2 target 0 lun 0 da0: Fixed Direct Access SCSI-0 device da0: 400.000MB/s transfers da0: 953869MB (1953525167 512 byte sectors: 255H 63S/T 121601C) ~ $ uname -a FreeBSD xxxxxxx 8.3-STABLE FreeBSD 8.3-STABLE #0: Fri Jun 22 17:08:30 CDT 2012 xxxxxx@xxxxxxx:/usr/obj/usr/src/sys/CUSTOM amd64 google shows others have had the same problem but I haven't found any solutions. Any insights??? Robertsen A. Riehle