From owner-freebsd-questions@FreeBSD.ORG Tue Jun 28 22:14:48 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 7D42916A41C for ; Tue, 28 Jun 2005 22:14:48 +0000 (GMT) (envelope-from casey@phantombsd.org) Received: from phantombsd.org (dsl231-036-158.sea1.dsl.speakeasy.net [216.231.36.158]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1EE0A43D1F for ; Tue, 28 Jun 2005 22:14:48 +0000 (GMT) (envelope-from casey@phantombsd.org) Received: by phantombsd.org (Postfix, from userid 1004) id 4097C102F05; Tue, 28 Jun 2005 15:14:47 -0700 (PDT) Received: from mail.phantombsd.org (localhost [127.0.0.1]) by phantombsd.org (Postfix) with ESMTP id E88F3102EFE; Tue, 28 Jun 2005 15:14:46 -0700 (PDT) Received: from 199.181.134.212 (SquirrelMail authenticated user casey) by mail.phantombsd.org with HTTP; Tue, 28 Jun 2005 15:14:46 -0700 (PDT) Message-ID: <14383.199.181.134.212.1119996886.squirrel@mail.phantombsd.org> In-Reply-To: <42C182D9.80801@infotechfl.com> References: <1119950428.22027.1.camel@tarkhil> <42C171AA.6090802@atopia.net> <42C173D9.3010408@Rainbow-IT.net> <42C175B6.7060702@atopia.net> <42C1777C.4000307@infotechfl.com> <20050628124701.L70927@neptune.atopia.net> <42C182D9.80801@infotechfl.com> Date: Tue, 28 Jun 2005 15:14:46 -0700 (PDT) From: "Casey Scott" To: "Gary Mu1der" User-Agent: SquirrelMail/1.4.4 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on eagle.phantombsd.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=5.0 tests=ALL_TRUSTED autolearn=failed version=3.0.4 Cc: Matt Juszczak , freebsd-questions@freebsd.org Subject: Re: On recent crashes X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jun 2005 22:14:48 -0000 > Matt Juszczak wrote: >>> I can't reproduce the crash with a non-SMP GENERIC kernel. >>> >>> Gary >> >> So does this mean my problem is nagios? > > Couldn't say, but I would think not. Nagios should be running as an > unprivileged user so it really shouldn't be crashing FreeBSD. > > However I'm fairly certain I can crash my SMP FreeBSD 5.4 server with > enough ping activity over time, which indicates a bug somewhere in the > network stack (maybe a race condition, given that it requires a SMP > kernel). Nagios with a lot of hosts sends a lot of pings, which would > imply that Nagios could eventually crash the server as well. > > However you said that Nagios process itself died - that would indicate > some other problem w/Nagios. > > Gary > > ps. now testing FreeBSD 4.11 SMP with 130+ simultaneous ping/arp -d's > (50,000 context switches a second!) and it has been rock solid for 30 > minutes. 5.4 would crash within 60 seconds. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > I've also experienced 5.4 crashing under network stress with a SMP kernel. In my case, it has with couple simultaneous file transfers via NFS. I have also seen it tip over under high network load from just about anything though. It's also worth noting that I have had interfaces go offline under load. It's not a hardware issue because I have swapped in NICs that I know work in others systems, and still had then go offline. The NICs this occurs to never show any issues under any other OS. The NICs have all been 3Com 905B's. What type of NIC was used with the Nagios issue?