From owner-freebsd-stable@FreeBSD.ORG Sat Jun 23 01:55:09 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 15F4B1065672; Sat, 23 Jun 2012 01:55:09 +0000 (UTC) (envelope-from mnln.l4@gmail.com) Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by mx1.freebsd.org (Postfix) with ESMTP id B77DB8FC0A; Sat, 23 Jun 2012 01:55:08 +0000 (UTC) Received: by obbun3 with SMTP id un3so3546604obb.13 for ; Fri, 22 Jun 2012 18:55:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=iyAc/dzxsSljJDxVcZSBXn3t/3dpEysyrv6D20nhpjA=; b=H8N1POz5h2V66LaWeue2h1MKsxac5sIEApw4H1b9UWXZ5tKK0J/AeX4AsJbvdZbWmx KGwyWWOS+lCw8CmHb8IHxTUUHpTdMY6d5Sm+wPzSb1eXe27CnUSUK9Q3y/qyyGW2+ljZ 8xf/2/3GmxUyxRH+wVh/vIqDoSqEIUVdb9upnbwKVNf7JPb8yQoFxb2abFcKb3/EbQFs azsxGzo58TeEF6pZilL75Qktu1YOKpMbvdrE5iCBp8MjmAh3aMOD+8STJZiBxYgqKCZb KgwBXelFHkYp1Hr2BNlojdVqbT/BBJL7SFCcOicSVlsrldZlDpB1h8kY6wmYD3DzholC OpWw== MIME-Version: 1.0 Received: by 10.50.170.69 with SMTP id ak5mr3287699igc.47.1340416508226; Fri, 22 Jun 2012 18:55:08 -0700 (PDT) Received: by 10.231.246.134 with HTTP; Fri, 22 Jun 2012 18:55:08 -0700 (PDT) In-Reply-To: <201206190754.03765.jhb@freebsd.org> References: <201206190754.03765.jhb@freebsd.org> Date: Fri, 22 Jun 2012 18:55:08 -0700 Message-ID: From: "mnln.l4" To: John Baldwin Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org 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: Sat, 23 Jun 2012 01:55:09 -0000 Thanks for explaining the cause! On Tue, Jun 19, 2012 at 4:54 AM, John Baldwin wrote: > 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 >