From owner-freebsd-stable@FreeBSD.ORG Tue Jun 19 11:58:56 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E9D7F1065670 for ; Tue, 19 Jun 2012 11:58:56 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from bigwig.baldwin.cx (bigknife-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:75::2]) by mx1.freebsd.org (Postfix) with ESMTP id C08A38FC0A for ; Tue, 19 Jun 2012 11:58:56 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 32592B945; Tue, 19 Jun 2012 07:58:56 -0400 (EDT) From: John Baldwin To: freebsd-stable@freebsd.org Date: Tue, 19 Jun 2012 07:54:03 -0400 User-Agent: KMail/1.13.5 (FreeBSD/8.2-CBSD-20110714-p13; KDE/4.5.5; amd64; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201206190754.03765.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Tue, 19 Jun 2012 07:58:56 -0400 (EDT) Cc: "mnln.l4" Subject: Re: Kernel panic at early boot time X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jun 2012 11:58:57 -0000 On Sunday, June 17, 2012 2:35:14 pm mnln.l4 wrote: > I get a kernel panic at early boot time on 9.0-stable (r237150), GENERIC, > AMD64. > > Repro step: > 1. Boot, wait for welcome screen. > 2. Repeat pressing Enter key rapidly (so kernel is loading, don't stop > pressing Enter key). > 3. See the following message at early boot So don't do that. All your key presses are triggering SMI# events that are interfering with the AP's ability to respond to its startup IPI. There is nothing we can do about this in the OS. -- John Baldwin