From owner-freebsd-bugs@FreeBSD.ORG  Thu Jun 12 23:30:02 2008
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 1C5C41065678
	for <freebsd-bugs@hub.freebsd.org>;
	Thu, 12 Jun 2008 23:30:02 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id E8D9A8FC1A
	for <freebsd-bugs@hub.freebsd.org>;
	Thu, 12 Jun 2008 23:30:01 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m5CNU1ue033907
	for <freebsd-bugs@freefall.freebsd.org>; Thu, 12 Jun 2008 23:30:01 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m5CNU19N033904;
	Thu, 12 Jun 2008 23:30:01 GMT (envelope-from gnats)
Resent-Date: Thu, 12 Jun 2008 23:30:01 GMT
Resent-Message-Id: <200806122330.m5CNU19N033904@freefall.freebsd.org>
Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer)
Resent-To: freebsd-bugs@FreeBSD.org
Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org,
	Simson Garfinkel <simsong@acm.org>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 93F6A106567D
	for <freebsd-gnats-submit@FreeBSD.org>;
	Thu, 12 Jun 2008 23:28:27 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21])
	by mx1.freebsd.org (Postfix) with ESMTP id 7EB1B8FC2B
	for <freebsd-gnats-submit@FreeBSD.org>;
	Thu, 12 Jun 2008 23:28:27 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (localhost [127.0.0.1])
	by www.freebsd.org (8.14.2/8.14.2) with ESMTP id m5CNSRcD093949
	for <freebsd-gnats-submit@FreeBSD.org>; Thu, 12 Jun 2008 23:28:27 GMT
	(envelope-from nobody@www.freebsd.org)
Received: (from nobody@localhost)
	by www.freebsd.org (8.14.2/8.14.1/Submit) id m5CNSRT7093948;
	Thu, 12 Jun 2008 23:28:27 GMT (envelope-from nobody)
Message-Id: <200806122328.m5CNSRT7093948@www.freebsd.org>
Date: Thu, 12 Jun 2008 23:28:27 GMT
From: Simson Garfinkel <simsong@acm.org>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-3.1
Cc: 
Subject: kern/124530: removing a USB flash drive while the drive is being
	accessed causes a kernel panic
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 12 Jun 2008 23:30:02 -0000


>Number:         124530
>Category:       kern
>Synopsis:       removing a USB flash drive while the drive is being accessed causes a kernel panic
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jun 12 23:30:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Simson Garfinkel
>Release:        7.0-RELEASE
>Organization:
Naval Postgraduate School
>Environment:
FreeBSD copy.ern.nps.edu 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008     root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386


>Description:
1. insert a flash disk into the usb slot. Have it mount as /dev/da0
2. Type this:
    dd if=/dev/da0 of=/dev/null
3. Remove the flash disk.

The kernel panics.
>How-To-Repeat:
Do it again.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: