From owner-freebsd-questions@FreeBSD.ORG Mon Aug 2 20:57:56 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 C34E716A54D for ; Mon, 2 Aug 2004 20:57:54 +0000 (GMT) Received: from mail2.speakeasy.net (mail2.speakeasy.net [216.254.0.202]) by mx1.FreeBSD.org (Postfix) with ESMTP id 38BD843D2F for ; Mon, 2 Aug 2004 20:57:50 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 20904 invoked from network); 2 Aug 2004 20:57:49 -0000 Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) encrypted SMTP for ; 2 Aug 2004 20:57:48 -0000 Received: from 10.50.40.208 (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.12.11/8.12.11) with ESMTP id i72KvNC4020109; Mon, 2 Aug 2004 16:57:45 -0400 (EDT) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: freebsd-smp@FreeBSD.org Date: Mon, 2 Aug 2004 15:32:52 -0400 User-Agent: KMail/1.6 References: <50335.81.84.175.12.1091365736.squirrel@81.84.175.12> In-Reply-To: <50335.81.84.175.12.1091365736.squirrel@81.84.175.12> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200408021532.52817.jhb@FreeBSD.org> X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx cc: Hugo Silva cc: freebsd-questions@FreeBSD.org Subject: Re: FreeBSD 5.2.1 kernel w/ SMP under high load = panic 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: Mon, 02 Aug 2004 20:57:56 -0000 On Sunday 01 August 2004 09:08 am, Hugo Silva wrote: > I am running a Dual Xeon 2.8ghz w/ SMP, SCHED_ULE on FreeBSD > 5.2.1-RELEASE-p9. > > Whenever I load the server a bit more (let seti@home run, compile stuff in > multiple jails, etc), it will simple go offline. I confirmed with the > datacenter and it is indeed a panic, but the datacenter didn't give me the > panic message. I know for *sure* it's because of the high loads. Hmm, we'd really need the panic message to even start debugging it. > I need to sort this out, this is a powerful server being cut because of > FreeBSD/SMP, and I know there is a kernel option to prevent the panic, I > read about it ages ago on a forum. But I can't locate it. That user said > if he disabled SMP, panics would stop. But another user suggested adding a > kernel option (which I simply don't remember), and panics stopped, even > with SMP. > > I tried KVA_PAGES=512, but it only caused another panic, this time as soon > as the system started up.. > > syncing disks, buffers remaining... panic: pmap_invalidate_range: > interrupts disabled > cpuid = 0; > boot() called on cpu#0 > uptime: 9s Unfortunately, I'd really need the backtrace to see how to fix this panic. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org