From owner-freebsd-stable@FreeBSD.ORG Tue Jul 24 10:26:23 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 B5DE01065670 for ; Tue, 24 Jul 2012 10:26:23 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 4A0C48FC18 for ; Tue, 24 Jul 2012 10:26:23 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q6OAQE8x077414; Tue, 24 Jul 2012 13:26:14 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q6OAQ1lD044732; Tue, 24 Jul 2012 13:26:01 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q6OAQ11E044731; Tue, 24 Jul 2012 13:26:01 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Tue, 24 Jul 2012 13:26:01 +0300 From: Konstantin Belousov To: Dan Allen Message-ID: <20120724102601.GU2676@deviant.kiev.zoral.com.ua> References: <0974E59F-62DA-407A-99A7-6704A70D12C6@airwired.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9hubxwIw+SFjuBUN" Content-Disposition: inline In-Reply-To: <0974E59F-62DA-407A-99A7-6704A70D12C6@airwired.net> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: List FreeBSD-STABLE Mailing Subject: Re: 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: Tue, 24 Jul 2012 10:26:23 -0000 --9hubxwIw+SFjuBUN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 23, 2012 at 03:49:37PM -0600, Dan Allen wrote: > Running FreeBSD 8.3 -- and updating sources on a daily base and building = everything -- I found a new APIC/ACPI problem introduced in the past week. >=20 > I have a Toshiba Satellite U205 with an Intel Core Duo (not a Core 2). I= t used to work fine with both cores but then sometime in on the road to BSD= 8.0 the machine began hanging. So I added to /boot/loader.conf >=20 > hint.apic.0.disabled=3D"1" >=20 > and the machine only had one core but it went back to being reliable. >=20 > The laptop sits idle a lot, so I also have in /etc/rc.conf >=20 > performance_cx_lowest=3D"LOW" >=20 > and the fans stay off unless I am doing a build. Everything was good. >=20 > I went away on a trip last week for five days, came home, did a csup to R= ELENG_8 and rebuilt the world, as usual, and now the fans are always runnin= g full! >=20 > If I comment out hint.apic.0.disabled=3D"1" from /boot/loader.conf and re= boot, the results are a mixed bag: >=20 > 1) I get my 2nd core back, and it no longer hangs! Hurray. > 2) The fans go back to usually being off and silent. Hurray! > 3) I get zillions of error messages streaming saying: >=20 > CPU0: local APIC error 0x40 > CPU1: local APIC error 0x40 >=20 > No good! >=20 >=20 > I am sitting at a prompt, no X-Windows, no apps running (other than the u= sual demons), and every few seconds I get another pair of these error messa= ges. >=20 > 4) The error appears benign other than flooding the console. Everything = works, nothing hangs, I can build the OS and everything appears fine. >=20 > So how do I get rid of these messages? What does error 0x40 mean? Does your system slows down with these messages ? 0x40 means that some code tried to send IPI with interrupt number from the range of assigned CPU faults. I believe that FreeBSD code never does that. Is there a BIOS upgrade for your machine ? --9hubxwIw+SFjuBUN Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAlAOeDkACgkQC3+MBN1Mb4hS9gCfZymwlbYL5bvjLMXzP4n9HZXL DLMAmwQuXExVBs/3f0hNe8UmdMHv2YxG =hAtn -----END PGP SIGNATURE----- --9hubxwIw+SFjuBUN--