From owner-freebsd-questions@FreeBSD.ORG Tue Jun 16 03:05:37 2015 Return-Path: Delivered-To: freebsd-questions@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id C38BAB02 for ; Tue, 16 Jun 2015 03:05:37 +0000 (UTC) (envelope-from freebsd-questions@herveybayaustralia.com.au) Received: from mail.unitedinsong.com.au (mail.unitedinsong.com.au [150.101.178.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7E261D52 for ; Tue, 16 Jun 2015 03:05:37 +0000 (UTC) (envelope-from freebsd-questions@herveybayaustralia.com.au) Received: from [192.168.0.175] (laptop1.herveybayaustralia.com.au [192.168.0.175]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.unitedinsong.com.au (Postfix) with ESMTPSA id 36C4F620A2 for ; Tue, 16 Jun 2015 12:58:37 +1000 (EST) Message-ID: <557F90DB.80601@herveybayaustralia.com.au> Date: Tue, 16 Jun 2015 12:58:35 +1000 From: Da Rock User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: FreeBSD Mailing List Subject: ZFS passdevgonecb Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Jun 2015 03:05:37 -0000 I hate jumping in like this out of the blue, but time is not on my side atm with a lot going on. I have a problem with some devices disappearing on various versions of FreeBSD and machines (laptops, workstations/servers). Umass are the norm, with the message occurring most on usb sticks and sd cards. Big problem atm is that my file server has a failed disk in the raid, and I've tried replacing it with a new drive (twice now), and both times it begins to resilver and then it is "REMOVED". If I online it again, it goes for about 10mins then REMOVED again. Dmesg shows that the device is removed from the devfs with a passdevgonecb/lost device message. This apparently occurs right at boot too, as it shows amongst the usual scrolling during boot. I had a chat with someone and they mentioned the cable and/or controller could be the issue. Could anyone add any insight or tests I could do? I'm not exactly claim to be an expert at zfs, so maybe something might need addressing there too. I'd particularly appreciate a means of testing the controller. ATM the main theory is to replace the board - not a happy thought! :/ TIA