From owner-freebsd-current@FreeBSD.ORG Mon Apr 16 13:31:18 2012 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id D31FF1065670 for ; Mon, 16 Apr 2012 13:31:18 +0000 (UTC) (envelope-from stefan@fafoe.narf.at) Received: from fep19.mx.upcmail.net (fep19.mx.upcmail.net [62.179.121.39]) by mx1.freebsd.org (Postfix) with ESMTP id 240AF8FC1B for ; Mon, 16 Apr 2012 13:31:17 +0000 (UTC) Received: from edge04.upcmail.net ([192.168.13.239]) by viefep19-int.chello.at (InterMail vM.8.01.05.05 201-2260-151-110-20120111) with ESMTP id <20120416133111.FOT22594.viefep19-int.chello.at@edge04.upcmail.net> for ; Mon, 16 Apr 2012 15:31:11 +0200 Received: from mole.fafoe.narf.at ([80.109.55.137]) by edge04.upcmail.net with edge id ydXB1i00x2xdvHc04dXBlM; Mon, 16 Apr 2012 15:31:11 +0200 X-SourceIP: 80.109.55.137 Received: by mole.fafoe.narf.at (Postfix, from userid 1001) id 2D7856D42F; Mon, 16 Apr 2012 15:31:11 +0200 (CEST) Date: Mon, 16 Apr 2012 15:31:11 +0200 From: Stefan Farfeleder To: current@freebsd.org Message-ID: <20120416133109.GA1411@mole.fafoe.narf.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Subject: da0 takes a long time to appear X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Mon, 16 Apr 2012 13:31:18 -0000 Hi, I recently had to replace the enclosure of an external USB harddisk (WD E1U10000E Elements). With the new one (Trekstor DataStation maxi n.u 3,5"), it now takes over one minute between the detection of umass0 and da0. After that it works fine. Is this delay due to the hardware or is the kernel at fault? Any debug information I should provide? I'm running head r234133. Apr 16 14:43:35 mole kernel: ugen7.2: at usbus7 Apr 16 14:43:35 mole kernel: umass0: on usbus7 Apr 16 14:44:49 mole kernel: da0 at umass-sim0 bus 0 scbus6 target 0 lun 0 Apr 16 14:44:49 mole kernel: da0: Fixed Direct Access SCSI-2 device Apr 16 14:44:49 mole kernel: da0: 40.000MB/s transfers Apr 16 14:44:49 mole kernel: da0: 953869MB (1953525168 512 byte sectors: 255H 63S/T 121601C) Stefan