From owner-freebsd-questions@FreeBSD.ORG Wed Jun 30 13:26:34 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A0A5A16A4CE for ; Wed, 30 Jun 2004 13:26:34 +0000 (GMT) Received: from mbox.ibctech.ca (dev.eagle.ca [209.167.58.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id C9CA943D55 for ; Wed, 30 Jun 2004 13:26:33 +0000 (GMT) (envelope-from iaccounts@ibctech.ca) Received: (qmail 69673 invoked by uid 1002); 30 Jun 2004 13:25:52 -0000 Received: from iaccounts@ibctech.ca by pearl.ibctech.ca by uid 89 with qmail-scanner-1.22 (clamscan: 0.73. spamassassin: 2.63. Clear:RC:1(127.0.0.1):. Processed in 0.982119 secs); 30 Jun 2004 13:25:52 -0000 Received: from unknown (HELO pearl.ibctech.ca) (127.0.0.1) by localhost.ibctech.ca with SMTP; 30 Jun 2004 13:25:51 -0000 Received: from 209.167.16.15 (SquirrelMail authenticated user steve@ibctech.ca); by pearl.ibctech.ca with HTTP; Wed, 30 Jun 2004 09:25:51 -0400 (EDT) Message-ID: <4860.209.167.16.15.1088601951.squirrel@209.167.16.15> Date: Wed, 30 Jun 2004 09:25:51 -0400 (EDT) From: "Steve Bertrand" To: freebsd-questions@freebsd.org User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal Subject: kern.ipc.nmbclusters X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jun 2004 13:26:34 -0000 I have a machine that is rebooting with the following error: "All mbuf clusters exhausted, please see tuning(7)." Which through google and man tuning I was able to figure out that indeed, mbufs were exhausted. So I tried to set kern.ipc.nmbclusters=4096 (which should cover the load of the server), but found out after it is not a run-time tunable parameter. I searched google, and gathered that I should put this setting in /boot/loader.conf. This is contradictory of me usually putting kernel tweaks in /etc/sysctl.conf. >From your experience, where is the best place to load this variable from, why is it a better location, and what will happen if I don't load it from the proper place? Tks. Steve