From owner-freebsd-questions@FreeBSD.ORG Sun May 17 11:39:48 2009 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 3373A106564A for ; Sun, 17 May 2009 11:39:48 +0000 (UTC) (envelope-from glen.j.barber@gmail.com) Received: from mail-ew0-f159.google.com (mail-ew0-f159.google.com [209.85.219.159]) by mx1.freebsd.org (Postfix) with ESMTP id BAFA18FC0C for ; Sun, 17 May 2009 11:39:47 +0000 (UTC) (envelope-from glen.j.barber@gmail.com) Received: by ewy3 with SMTP id 3so3301300ewy.43 for ; Sun, 17 May 2009 04:39:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=xINHdCSc0Y7dznU9zeBW8hyrgeHd3hPeoySvmXxb6JM=; b=UHsaADDRUhx3VAbstE9phry1asf274C2uJ3xnLvl+KlHoZYxcZ+DlRE8ZfA5GL9l37 QN/U2cjI+N75lihXMxheNnTofptNlhjSct5ufXw5Ugw8hVqItIbVOcG4epqSPtfcR1MW aVg8/WAVC7IBT5kvzkhQeD5fAREvsdpaZ9Uik= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=Cn6T6zDq5bK2NyPk8Q23tSG/+/tjDnHYmenaXoVseZMA7xIv8lF7jQe09UIB7G/JAe ceT/ydtJsLG/FWFa3bs2MQC5WglTv6/qECXFmDzrzrozMYfm42Xju0qwrHYkm9o7oWmz qqlG1a6QbKy95wjiSISHM02IBrI7eurypTtqQ= MIME-Version: 1.0 Received: by 10.216.7.212 with SMTP id 62mr1791498wep.92.1242560386672; Sun, 17 May 2009 04:39:46 -0700 (PDT) In-Reply-To: <20090517110657.GC2706@mini.local> References: <20090517110657.GC2706@mini.local> Date: Sun, 17 May 2009 07:39:46 -0400 Message-ID: <4ad871310905170439o678e2a9dp1c09be26ed9afc75@mail.gmail.com> From: Glen Barber To: Doug Lee , freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Subject: Re: 4.11 panic every 23 hours 55 minutes or so 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: Sun, 17 May 2009 11:39:48 -0000 On Sun, May 17, 2009 at 7:06 AM, Doug Lee wrote: > One of the weirder things I've seen in a while here... > > OS: FreeBSD 4.11 (yeah I know, old, but generally stable) > CPU: Intel(R) Pentium(R) 4 CPU 2.00GHz > real memory =A0=3D 536608768 (524032K bytes) > Hds: IDE > Do you by chance have the kernel built with debugging enabled? > Problem: =A0Ever since a suspitious power outage (I say suspitious > because we think a surge was also involved), this box has been > exhibiting kernel panics about every 23 hours 55 minutes, give or > take about 4 minutes either way. =A0Obviously hardware is suspect, > and hopefully in line for upgrade; but as FreeBSD has always proven > so stable for me, I'm curious what on earth could cause this sort > of regular panic? > > It's not time of day; if I reboot at 2:00 AM, 3:55 PM, or any other > time, it's 23:55 or so later I get a panic, whenever that may be. > I think this rules out cron jobs, external attacks, and load-based > issues. > Perhaps a bad CMOS battery causing the system time to become corrupted? (I know it's a long shot...) --=20 Glen Barber