From owner-freebsd-questions@FreeBSD.ORG Tue Apr 1 16:51:35 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0FE3A106566C for ; Tue, 1 Apr 2008 16:51:35 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from mail.potentialtech.com (internet.potentialtech.com [66.167.251.6]) by mx1.freebsd.org (Postfix) with ESMTP id CBC7C8FC18 for ; Tue, 1 Apr 2008 16:51:34 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from vanquish.ws.pitbpa0.priv.collaborativefusion.com (pr40.pitbpa0.pub.collaborativefusion.com [206.210.89.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.potentialtech.com (Postfix) with ESMTPSA id EF54CEBC3B; Tue, 1 Apr 2008 12:51:33 -0400 (EDT) Date: Tue, 1 Apr 2008 12:51:19 -0400 From: Bill Moran To: "n j" Message-Id: <20080401125119.f66c3e38.wmoran@potentialtech.com> In-Reply-To: <92bcbda50804010852s20e5d681y9d2d2a4cd9e9adea@mail.gmail.com> References: <92bcbda50804010613p3cd927e4g4a3c3c7820a6a06e@mail.gmail.com> <002e01c893fd$2bb5e8d0$3202a8c0@glattwerk.local> <92bcbda50804010852s20e5d681y9d2d2a4cd9e9adea@mail.gmail.com> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.8; i386-portbld-freebsd6.3) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD 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, 01 Apr 2008 16:51:35 -0000 In response to "n j" : > > I hope someone can help me. I have started to experience > > seemingly random crashes causing FreeBSD to shutdown and > > power off the machine. The only trace I can find as far as > > the reason for the crash is concerned are the following > > excerpts from /var/log/messages: > > > > Mar 23 11:52:36 myhostname kernel: <<22>N>NMIMN NIMIMII IISISSSAAA > > A 20,22 200E,0,I, S EIEEASI ISAAS f Aff ff > > Mar 23 11:52:36 myhostname kernel: f > > Mar 23 11:52:36 myhostname kernel: > > Mar 23 11:52:36 myhostname kernel: f< > > Mar 23 11:52:36 myhostname kernel: 2<>2> > > Mar 23 11:52:36 myhostname kernel: f > > Mar 23 11:52:36 myhostname kernel: > > Mar 23 11:52:47 myhostname syslogd: exiting on signal 15 > > Mar 23 13:04:32 myhostname syslogd: kernel boot file is > > /boot/kernel/kernel > > Small update: I have received some feedback that this seemingly random > junk is related to ipfw > (http://www.freebsd.org/cgi/query-pr.cgi?pr=116458). > > However, I have also received information that this junk might not be > completely random and could be, in fact, related to NMI (non-maskable > interrupt) which would suggest hardware error. Any thoughts on this? I suspect you're going to have to get crash dumps in order to get any real answers: http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html Based purely on the symptom that the crashes started occurring unrelated to any other activity, I would guess that you've got a hardware issue. Have you tried running things like cpuburn and memtest to see if you can reproduce it? -- Bill Moran http://www.potentialtech.com