From owner-freebsd-current@FreeBSD.ORG Mon Nov 26 19:13:37 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A387816A417 for ; Mon, 26 Nov 2007 19:13:37 +0000 (UTC) (envelope-from gtodd@bellanet.org) Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.180]) by mx1.freebsd.org (Postfix) with ESMTP id 1F46B13C468 for ; Mon, 26 Nov 2007 19:13:36 +0000 (UTC) (envelope-from gtodd@bellanet.org) Received: by py-out-1112.google.com with SMTP id u77so1856824pyb for ; Mon, 26 Nov 2007 11:13:36 -0800 (PST) Received: by 10.65.83.18 with SMTP id k18mr6567031qbl.1196102934930; Mon, 26 Nov 2007 10:48:54 -0800 (PST) Received: from ?10.10.10.149? ( [198.62.158.205]) by mx.google.com with ESMTPS id e14sm1314574qba.2007.11.26.10.48.54 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 26 Nov 2007 10:48:54 -0800 (PST) Message-ID: <474B1515.3020303@bellanet.org> Date: Mon, 26 Nov 2007 13:48:53 -0500 From: Graham Todd User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <20071126111520.GA29188@soaustin.net> <20071126165021.GC51762@staatsfeind.org> In-Reply-To: <20071126165021.GC51762@staatsfeind.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: 7.0-BETA3 kernel panic when unplugging USB stick 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, 26 Nov 2007 19:13:37 -0000 Matthias Schmidt wrote: > Hi, > > * Mark Linimon wrote: >> On Mon, Nov 26, 2007 at 11:00:45AM +0100, Matthias Schmidt wrote: >>> When I plugged out the stick, I got the below messages followed by a >>> kernel panic: >> Unfortunately, a well-known problem that will require some serious >> re-architecting to fix. > > OK, thanks for the answer. Could you elaborate on that topic a bit > further. Is there a difference between unplugging a "recognized" USB > stick and an "unrecognized" USB stick? I thought this usually occured since whenever a filesystem went missing (e.g. even a "transient" one auto-mounted from a usb key) the kernel would panic. It's inconvenient (& can be embarassing) but well known :) Is the crash you are experiencing caused by simply physically removing an unrecognized usb device that is not mounted or somehow in use?