From owner-freebsd-usb@FreeBSD.ORG Mon Dec 26 22:48:36 2011 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C75B106566B for ; Mon, 26 Dec 2011 22:48:36 +0000 (UTC) (envelope-from momchil@xaxo.eu) Received: from vps2.xaxo.eu (vps2.xaxo.eu [78.47.156.66]) by mx1.freebsd.org (Postfix) with ESMTP id D42408FC0C for ; Mon, 26 Dec 2011 22:48:35 +0000 (UTC) Received: from t61.xaxo.eu ([10.75.23.6]) by vps2.xaxo.eu (8.14.4/8.14.4) with ESMTP id pBQMQkbA036214 for ; Mon, 26 Dec 2011 23:26:46 +0100 (CET) (envelope-from momchil@xaxo.eu) Date: Mon, 26 Dec 2011 23:26:41 +0100 Message-ID: <86ipl3dl5q.wl%momchil@xaxo.eu> From: Momchil Ivanov To: freebsd-usb@freebsd.org MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Subject: USB problems with 8.2 X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Dec 2011 22:48:36 -0000 Hi, I am currently experiencing some problems with USB. I have a SATA hdd connected to my computer with a USB adapter. When using rtorrent on a good connection with 2-3 MB/s after a minute or two all file system operations on the USB hdd get stalled from time to time for several seconds. Finally after 3-4 minutes all operations get stalled and when I unplug the drive most of the time my computer reboots. I am using FreeBSD 8.2-STABLE #0: Sat Oct 22 16:07:57 CEST 2011. I am not experiencing this problems when not having rtorrent on: watching a movie, compiling ports ... etc. The stall seems also to occur when rtorrent is checking the hashes. Btw I have tried the same with a USB flash drive and am experiencing the same kind of stall when doing rtorrent. Since I don't seem to have had the same kind of problems 1 or 2 years ago with FreeBSD 8.x and the same drive with the same adapter, I would guess that some regression has been introduced or my hardware does not work properly any more. Moreover I need to connect the drive to my laptop before powering up the FreeBSD otherwise it sees sometimes only a USB device with no drive attached to it and "camcontrol rescan all" gets stalled until I unplug the drive. I am not experiencing this particular problem when connecting the drive via a USB hub to my laptop. Does somebody have a solution for one of the above? Please CC me since I am not subscribed. Thanks, Momchil