From owner-freebsd-current@FreeBSD.ORG  Tue Jan  1 21:16:32 2008
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 91C3216A41A
	for <current@FreeBSD.org>; Tue,  1 Jan 2008 21:16:32 +0000 (UTC)
	(envelope-from mi@bonkers.video-collage.com)
Received: from bonkers.video-collage.com
	(static-151-204-231-237.bos.east.verizon.net [151.204.231.237])
	by mx1.freebsd.org (Postfix) with ESMTP id 3856913C47E
	for <current@FreeBSD.org>; Tue,  1 Jan 2008 21:16:31 +0000 (UTC)
	(envelope-from mi@bonkers.video-collage.com)
Received: from bonkers.video-collage.com (localhost [127.0.0.1])
	by bonkers.video-collage.com (8.14.1/8.14.1) with ESMTP id
	m01LGQtb012861; Tue, 1 Jan 2008 16:16:26 -0500 (EST)
	(envelope-from mi@bonkers.video-collage.com)
Received: (from mi@localhost)
	by bonkers.video-collage.com (8.14.1/8.14.1/Submit) id m01LGQhN012860; 
	Tue, 1 Jan 2008 16:16:26 -0500 (EST) (envelope-from mi)
From: Mikhail Teterin <mi@bonkers.video-collage.com>
Message-Id: <200801012116.m01LGQhN012860@bonkers.video-collage.com>
In-Reply-To: <477A4594.7050304@FreeBSD.org>
To: Kris Kennaway <kris@FreeBSD.org>
Date: Tue, 1 Jan 2008 16:16:26 -0500 (EST)
X-Mailer: ELM [version 2.4ME+ PL124 (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="US-ASCII"
X-Virus-Scanned: ClamAV 0.88.7/5330/Tue Jan 1 15:33:57 2008 on
	bonkers.video-collage.com
X-Virus-Status: Clean
X-Mailman-Approved-At: Tue, 01 Jan 2008 21:28:01 +0000
Cc: efinleywork@efinley.com, current@FreeBSD.org
Subject: Re: a new way to hang 7.0
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 01 Jan 2008 21:16:32 -0000

> >>> Is this really a new way, or is it well known already? Thanks! -L
> >>has been hanging systems ever since it existed. Don't use it.
> > 
> > Why does `dump' implore me to use it, then?
 
> Because the previous poster is being uncharitable with the facts :) 

I'd say both previous posters reported problems -- their tone was
different, but both reported their glass being, uhm, less then full :)

> There are a history of problems with -L (more generally, UFS
> snapshots), but these are believed to have been fixed over the past 2
> years. Since you are claiming to have found a new one, please follow
> up with the usual kernel debugging so someone can try and study it.

I'll try, but I am not, unfortunately, well setup for kernel debugging.
Most of the time I only have one system, and can't afford to hang it even
for a short while.

> > I wonder, if this is also a problem on DragonFlyBSD...
> 
> Since Dragonfly is FreeBSD 4 + some stuff it is unlikely that it even
> supports UFS snapshots.

Yes, you are right. I confused the -L with the -C option...

Thanks,

	-mi