From owner-freebsd-stable@FreeBSD.ORG Fri Feb 26 10:08:26 2010 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 72079106566B for ; Fri, 26 Feb 2010 10:08:26 +0000 (UTC) (envelope-from gerrit@pmp.uni-hannover.de) Received: from mrelay1.uni-hannover.de (mrelay1.uni-hannover.de [130.75.2.106]) by mx1.freebsd.org (Postfix) with ESMTP id D5ECB8FC2C for ; Fri, 26 Feb 2010 10:08:25 +0000 (UTC) Received: from www.pmp.uni-hannover.de (www.pmp.uni-hannover.de [130.75.117.2]) by mrelay1.uni-hannover.de (8.14.2/8.14.2) with ESMTP id o1Q9wTnV032239; Fri, 26 Feb 2010 10:58:30 +0100 Received: from pmp.uni-hannover.de (arc.pmp.uni-hannover.de [130.75.117.1]) by www.pmp.uni-hannover.de (Postfix) with SMTP id 331A224; Fri, 26 Feb 2010 10:58:29 +0100 (CET) Date: Fri, 26 Feb 2010 10:58:29 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= To: Willem Jan Withagen Message-Id: <20100226105829.82ba37c4.gerrit@pmp.uni-hannover.de> In-Reply-To: <4B8795B1.4020006@digiware.nl> References: <4B86F384.3010308@digiware.nl> <2a41acea1002251459v40e8c6ddxd0437decbada4594@mail.gmail.com> <4B8795B1.4020006@digiware.nl> Organization: Albert-Einstein-Institut (MPI =?ISO-8859-1?Q?f=FCr?= Gravitationsphysik & IGP =?ISO-8859-1?Q?Universit=E4t?= Hannover) X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.4; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-PMX-Version: 5.5.9.388399, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2010.2.26.94826 Cc: stable@freebsd.org, Jack Vogel Subject: Re: em0 freezes on ZFS server 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: Fri, 26 Feb 2010 10:08:26 -0000 On Fri, 26 Feb 2010 10:34:41 +0100 Willem Jan Withagen wrote about Re: em0 freezes on ZFS server: WJW> Probably the reason why this happened yesterday is that I started WJW> doing major software builds (over ZFS/NFS/TCP/v3) against data stored WJW> on this box. I saw a similar problem this morning and suppose it started when some automatic backup jobs started last night. A unstable em device is a rather bad thing, I hope increasing the buffer (mine is at 64000 now) prevents this from happening again. cu Gerrit