From owner-freebsd-current@FreeBSD.ORG Wed Dec 3 23:33:56 2008 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 A8A6F1065673 for ; Wed, 3 Dec 2008 23:33:56 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from koef.zs64.net (koef.zs64.net [212.12.50.230]) by mx1.freebsd.org (Postfix) with ESMTP id 406398FC0A for ; Wed, 3 Dec 2008 23:33:56 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from localhost by koef.zs64.net (8.14.3/8.14.3) with ESMTP id mB3NXs95046770 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO) for ; Thu, 4 Dec 2008 00:33:54 +0100 (CET) (envelope-from stb@lassitu.de) (authenticated as stb) Message-Id: <31C70CBC-488A-4A9A-A642-37855E8F1DD1@lassitu.de> From: Stefan Bethke To: FreeBSD Current In-Reply-To: <20081202232924.GA19134@hyperion.scode.org> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v929.2) Date: Thu, 4 Dec 2008 00:33:53 +0100 References: <20081117205526.GC1733@garage.freebsd.pl> <20081202203308.GA13818@hyperion.scode.org> <200812021254.21242.fjwcash@gmail.com> <20081202232924.GA19134@hyperion.scode.org> X-Mailer: Apple Mail (2.929.2) Subject: Re: HEADS UP: New ZFS in the tree. 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: Wed, 03 Dec 2008 23:33:56 -0000 Am 03.12.2008 um 00:29 schrieb Peter Schuller: >> I've noticed the past couple of days, when using the server (not very >> often), every now and then, the GUI (KDE 4.1) will "hang" for up to 5 >> minutes (no mouse movement, no keyboard events), while the drives >> work like >> crazy. > > I was not explicit about it, but FWIW in my case the hang is not due > to drive saturation. The drives were mostly idle (except some stuff > triggered by a buildworld I had going) during the extended period of > ktorrent being unkillable. But again I never had this happen > pre-CURRENT. Just a very brief "me too" (but possibly different effect): I'm stress testing two machines I put together over the weekend with an endless loop of make -j4 universe, with /usr/obj on ZFS, with a single disk. One of the two machines has now been stuck for a couple of hours, and trying to access /tank results in a hung process, as will zfs list. I'll reboot and see what happens, and if I can trigger it again, willt try to produce more details. I have set vfs.zfs.arc_max="512M" vfs.zfs.prefetch_disable=1 in loader.conf FreeBSD lokschuppen.lassitu.de 8.0-CURRENT FreeBSD 8.0-CURRENT #1: Wed Dec 3 07:05:03 UTC 2008 root@lokschuppen.lassitu.de:/usr/obj/usr/ src/sys/EISENBOOT amd64 Stefan -- Stefan Bethke Fon +49 170 346 0140