From owner-freebsd-stable@FreeBSD.ORG Thu Jul 19 14:43:18 2007 Return-Path: X-Original-To: freebsd-stable@FreeBSD.ORG Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B11FE16A402 for ; Thu, 19 Jul 2007 14:43:18 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id 6EC9C13C491 for ; Thu, 19 Jul 2007 14:43:18 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.13.8/8.13.4) with ESMTP id l6JEgYqN085236; Thu, 19 Jul 2007 08:42:35 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Thu, 19 Jul 2007 08:42:40 -0600 (MDT) Message-Id: <20070719.084240.-1962670843.imp@bsdimp.com> To: LoN_Kamikaze@gmx.de From: "M. Warner Losh" In-Reply-To: <469E1B2A.3030901@gmx.de> References: <200707181142.27240.idiotbg@gmail.com> <200707180839.50113.josh@tcbug.org> <469E1B2A.3030901@gmx.de> X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0 (harmony.bsdimp.com [127.0.0.1]); Thu, 19 Jul 2007 08:42:36 -0600 (MDT) Cc: josh@tcbug.org, freebsd-stable@FreeBSD.ORG, idiotbg@gmail.com Subject: Re: removing external usb hdd without unmounting causes reboot? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Jul 2007 14:43:18 -0000 In message: <469E1B2A.3030901@gmx.de> "[LoN]Kamikaze" writes: : Josh Paetzel wrote: : > On Wednesday 18 July 2007, Momchil Ivanov wrote: : >> Hi, : >> : >> I am running FreeBSD 6.2-STABLE #11: Sat Jul 14 16:27:12 CEST 2007 : >> and accidently unplugged the USB hub to which my external hdd : >> together with a mouse were connected and this caused my machine to : >> freeze for some seconds and then reboot. At that moment the hdd was : >> mounted and I was playing music out of it. : >> After that I tried to reproduce it :) so just plugged only the hdd : >> directly, mounted it and started playing music files from it. When : >> I unplugged the USB cable the same thing happened: short freeze, : >> and then reboot. Is this expected behaviour? And is there some way : >> to avoid the freeze and reboot? : >> : >> Thanks. : > : > Yes, it's expected behavior. The workaround is to not unplug mounted : > devices. (There's nothing special about USB here, if you unplugged an : > IDE drive you'd get the same behavior) : > : : Wouldn't it make some sense not to panic if mounted devices that are in sync : get removed? A few applications might get in trouble, but that's hardly a : reason to bring a whole system down. This is this week's winner in the Zen Master of the Obvious award. Yes. It is a known problem that should be fixed. Warner