From owner-freebsd-bugs@FreeBSD.ORG Thu Nov 26 16:10:08 2009 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 359301065670 for ; Thu, 26 Nov 2009 16:10:08 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from mail.cksoft.de (mail.cksoft.de [IPv6:2001:4068:10::3]) by mx1.freebsd.org (Postfix) with ESMTP id C0DEA8FC1D for ; Thu, 26 Nov 2009 16:10:07 +0000 (UTC) Received: from localhost (amavis.fra.cksoft.de [192.168.74.71]) by mail.cksoft.de (Postfix) with ESMTP id C98CB41C75C; Thu, 26 Nov 2009 17:10:06 +0100 (CET) X-Virus-Scanned: amavisd-new at cksoft.de Received: from mail.cksoft.de ([192.168.74.103]) by localhost (amavis.fra.cksoft.de [192.168.74.71]) (amavisd-new, port 10024) with ESMTP id fcuZgDVh1hJK; Thu, 26 Nov 2009 17:10:06 +0100 (CET) Received: by mail.cksoft.de (Postfix, from userid 66) id 12DF741C75A; Thu, 26 Nov 2009 17:10:06 +0100 (CET) Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net [10.111.66.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.int.zabbadoz.net (Postfix) with ESMTP id 67CB64448EC; Thu, 26 Nov 2009 16:07:26 +0000 (UTC) Date: Thu, 26 Nov 2009 16:07:26 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@maildrop.int.zabbadoz.net To: John Hickey In-Reply-To: <20091123213609.GD19973@pod.isi.edu> Message-ID: <20091126160522.T37440@maildrop.int.zabbadoz.net> References: <20091123213609.GD19973@pod.isi.edu> X-OpenPGP-Key: 0x14003F198FEFA3E77207EE8D2B58B8F83CCF1842 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-bugs@freebsd.org Subject: Re: debugging a mbuf leak X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Nov 2009 16:10:08 -0000 On Mon, 23 Nov 2009, John Hickey wrote: Hi John, > One of our main servers here has a slow mbuf leak. We are not sure what > is causing it at this point. Does anyone have some pointers on how to > dig further into this? There are a couple of things to check: 1) is it really a leak? This can easily be tested by going down to single user and see if the mbufs got freed again. 2) maybe starting with this first: which version of freebsd is this? > Mon Nov 23 13:19:15 PST 2009 > > 16364/2836/19200 mbufs in use (current/cache/total) > 928/2216/3144/132096 mbuf clusters in use (current/cache/total/max) > 512/1664 mbuf+clusters out of packet secondary zone in use > (current/cache) > 0/135/135/66048 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max) > 5947K/5681K/11628K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0/5/33280 sfbufs in use (current/peak/max) > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 0 requests for I/O initiated by sendfile > 0 calls to protocol drain routines > > Mon Nov 23 13:24:21 PST 2009 > > 18085/2660/20745 mbufs in use (current/cache/total) > 923/2455/3378/132096 mbuf clusters in use (current/cache/total/max) > 512/1664 mbuf+clusters out of packet secondary zone in use > (current/cache) > 0/135/135/66048 4k (page size) jumbo clusters in use > (current/cache/total/max) > 0/0/0/33024 9k jumbo clusters in use (current/cache/total/max) > 0/0/0/16512 16k jumbo clusters in use (current/cache/total/max) > 6367K/6115K/12482K bytes allocated to network (current/cache/total) > 0/0/0 requests for mbufs denied (mbufs/clusters/mbuf+clusters) > 0/0/0 requests for jumbo clusters denied (4k/9k/16k) > 0/5/33280 sfbufs in use (current/peak/max) > 0 requests for sfbufs denied > 0 requests for sfbufs delayed > 0 requests for I/O initiated by sendfile > 0 calls to protocol drain routines > > _______________________________________________ > freebsd-bugs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-bugs > To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" > -- Bjoern A. Zeeb It will not break if you know what you are doing.