From owner-freebsd-bugs@FreeBSD.ORG Thu Mar 22 02:48:27 2007 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id EBEF016A411; Thu, 22 Mar 2007 02:48:27 +0000 (UTC) (envelope-from simokawa@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40]) by mx1.freebsd.org (Postfix) with ESMTP id C25D113C44C; Thu, 22 Mar 2007 02:48:27 +0000 (UTC) (envelope-from simokawa@FreeBSD.org) Received: from freefall.freebsd.org (simokawa@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l2M2mR9V020058; Thu, 22 Mar 2007 02:48:27 GMT (envelope-from simokawa@freefall.freebsd.org) Received: (from simokawa@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l2M2mR7u020054; Thu, 22 Mar 2007 02:48:27 GMT (envelope-from simokawa) Date: Thu, 22 Mar 2007 02:48:27 GMT From: Hidetoshi Shimokawa Message-Id: <200703220248.l2M2mR7u020054@freefall.freebsd.org> To: estartu@augusta.de, simokawa@FreeBSD.org, freebsd-bugs@FreeBSD.org Cc: Subject: Re: kern/93083: [firewire] Detach of Firewire Harddisk not recognied properly X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Mar 2007 02:48:28 -0000 Synopsis: [firewire] Detach of Firewire Harddisk not recognied properly State-Changed-From-To: open->feedback State-Changed-By: simokawa State-Changed-When: Thu Mar 22 02:47:51 UTC 2007 State-Changed-Why: USB has always tree structures and any devices except hubs are leaves of the tree. This means that you can remove any device without disconnecting any other devices. On the other hand, ieee1394 allows daisy chains and you may sometimes want to remove a device between the host and a leaf device which is mounted on the host. The current default setting allow to remove physically such intermediate nodes without unmounting filesystems. http://www.freebsd.org/cgi/query-pr.cgi?pr=93083