From owner-freebsd-stable@FreeBSD.ORG Wed Jul 11 12:05:03 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 C2443106564A for ; Wed, 11 Jul 2012 12:05:03 +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 93A228FC14 for ; Wed, 11 Jul 2012 12:05:03 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id 0802EB911; Wed, 11 Jul 2012 08:05:03 -0400 (EDT) From: John Baldwin To: freebsd-stable@freebsd.org Date: Wed, 11 Jul 2012 07:57:14 -0400 User-Agent: KMail/1.13.5 (FreeBSD/8.2-CBSD-20110714-p17; KDE/4.5.5; amd64; ; ) References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201207110757.14789.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Wed, 11 Jul 2012 08:05:03 -0400 (EDT) Cc: Yanhui Shen Subject: Re: error message "CPU0: local APIC error 0x40" 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: Wed, 11 Jul 2012 12:05:03 -0000 On Wednesday, July 11, 2012 3:08:13 am Yanhui Shen wrote: > Hi, > > As titled, I can find that error message in dmesg everytime my laptop boots. > Any ideas? Or is this a hw/sw bug? Oh, hmm. It seems it happens as a side effect of something in ACPI. Error bit 0x40 means an interrupt message was sent to the CPU with an illegal vector (< 32). It is most likely a harmless bug in your BIOS. Can you get a verbose dmesg to narrow down when the error occurs? -- John Baldwin