From owner-freebsd-stable@FreeBSD.ORG Wed Oct 15 20:37:03 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3DBFC1065695; Wed, 15 Oct 2008 20:37:03 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 0B46A8FC14; Wed, 15 Oct 2008 20:37:01 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <48F65490.6040305@FreeBSD.org> Date: Wed, 15 Oct 2008 21:37:36 +0100 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.17 (Macintosh/20080914) MIME-Version: 1.0 To: Jeremy Chadwick References: <20081015082428.GE26536@server.vk2pj.dyndns.org> <20081015083538.GA72190@icarus.home.lan> In-Reply-To: <20081015083538.GA72190@icarus.home.lan> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Peter Jeremy , freebsd-stable@freebsd.org Subject: Re: System hanging during dump 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: Wed, 15 Oct 2008 20:37:03 -0000 Jeremy Chadwick wrote: >> Has anyone else seen anything similar? > > It's a known problem documented in my Wiki -- see "dump/restore". Note > the part about UFS2 snapshot generation. I'm almost certain this is > what you're describing. I don't know how you can say this so confidently without even comparing the process wait channels. Peter, there was a bug causing dump to hang (completely unrelated to UFS2 snapshot generation) merged to RELENG_7 a month or so ago. Can you try updating? Kris