From owner-freebsd-stable@FreeBSD.ORG Fri Feb 26 13:18:20 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 ED00D106566B for ; Fri, 26 Feb 2010 13:18:20 +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 6E0858FC2A for ; Fri, 26 Feb 2010 13:18:19 +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 o1QDHs4j008272; Fri, 26 Feb 2010 14:17:55 +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 9ADD524; Fri, 26 Feb 2010 14:17:54 +0100 (CET) Date: Fri, 26 Feb 2010 14:17:54 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= To: Daniel Braniss Message-Id: <20100226141754.86ae5a3f.gerrit@pmp.uni-hannover.de> In-Reply-To: References: <4B86F384.3010308@digiware.nl> <2a41acea1002251459v40e8c6ddxd0437decbada4594@mail.gmail.com> <4B8795B1.4020006@digiware.nl> <20100226120339.GB17798@icarus.home.lan> <20100226133138.d47dd080.gerrit@pmp.uni-hannover.de> <20100226134429.041ea6f2.gerrit@pmp.uni-hannover.de> 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: 2010.2.26.130631 Cc: stable@freebsd.org, Willem Jan Withagen , Jack Vogel , Jeremy Chadwick 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 13:18:21 -0000 On Fri, 26 Feb 2010 15:04:37 +0200 Daniel Braniss wrote about Re: em0 freezes on ZFS server : DB> > At least in my case I found out what is eating the buffers: nfsd DB> > does! The buffers stop increasing as soon as I stop nfsd. However, DB> > they start increasing as soon as I start nfsd again. DB> > Are there any ideas how to fix this? Downgrading back to 7-stable is DB> > not really an easy task as far as I know, and I need the server to DB> > run without having to reboot it once for twice a day... DB> I want to add some spices to this stew: :-) You're welcome. :-) DB> Some few day later it hung, and it's now hanging every few days. DB> Most of the hangs are because there is no network, but the NIC is bce DB> not em! I doubled kern.ipc.nmbclusters and lets see what happens ... Do you have nfsd running and serving clients? If so, we should maybe change the topic to something like "possible nfs mbuf leakage"... DB> 23066/6634/29700 mbufs in use (current/cache/total) My server is at 22k now, and the buffer number is still increasing every few seconds... Can you monitor your mbuf usage and report if it grows? cu Gerrit