From owner-freebsd-stable@FreeBSD.ORG Mon Aug 16 19:39:53 2010 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 55638106578C for ; Mon, 16 Aug 2010 19:39:52 +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 1A71E8FC0C for ; Mon, 16 Aug 2010 19:39:51 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id o7GJdmp5013056 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 16 Aug 2010 22:39:48 +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 (8.14.4/8.14.4) with ESMTP id o7GJdmSx020984; Mon, 16 Aug 2010 22:39:48 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4/Submit) id o7GJdmkN020983; Mon, 16 Aug 2010 22:39:48 +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: Mon, 16 Aug 2010 22:39:48 +0300 From: Kostik Belousov To: Alexey Tarasov Message-ID: <20100816193948.GW2396@deviant.kiev.zoral.com.ua> References: <20100816184818.GS2396@deviant.kiev.zoral.com.ua> <20100816193112.GV2396@deviant.kiev.zoral.com.ua> <55B93A70-9AD1-46EC-B1A0-FC73780ABCDE@lexasoft.ru> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="QgvTbcZPsSS/HkXe" Content-Disposition: inline In-Reply-To: <55B93A70-9AD1-46EC-B1A0-FC73780ABCDE@lexasoft.ru> 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=-3.5 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, DNS_FROM_OPENWHOIS autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: freebsd-stable@freebsd.org Subject: Re: STABLE kernel panic: privileged instruction fault 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: Mon, 16 Aug 2010 19:39:53 -0000 --QgvTbcZPsSS/HkXe Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 16, 2010 at 11:35:36PM +0400, Alexey Tarasov wrote: >=20 > On Aug 16, 2010, at 11:31 PM, Kostik Belousov wrote: >=20 > > On Mon, Aug 16, 2010 at 11:21:15PM +0400, Alexey Tarasov wrote: > >> Hello Kostik! > >>=20 > >> On Aug 16, 2010, at 10:48 PM, Kostik Belousov wrote: > >>=20 > >>>>=20 > >>> The backtrace make absolutely no sense. I would not trust kgdb anyway. > >>>=20 > >>> Compile ddb in and do backtrace in console on the panic. Also, disass= emble > >>> the kernel at the fault address. I am very curious which instruction = causes > >>> this. This is stock GENERIC on the bare metal booted, right ? > >>=20 > >> Yes, stock GENERIC. > >>=20 > >> Please, check this out: > >>=20 > >> Dump of assembler code from 0xffffff0060c0b700 to 0xffffff0060c0b780: > >=20 > > Would be nice if you keep all requested data in one place, so that > > we do not need to search for the old mails to see the context. > >=20 > > According to your previous mail, the fault happen at the > > address > > instruction pointer =3D 0x20:0xffffff8040d2cc83 > > Your disassembled the stack instead. Please just do > > disass 0xffffff8040d2cc83,0xffffff8040d2cca0 > > in kgdb. > >=20 > > But also, I want to see the backtrace and disassembly output from ddb. >=20 > (kgdb) disass 0xffffff8040d2cc83,0xffffff8040d2cca0 > No function contains specified address. Err, it seems that old gdb accepts only spaces. Please try disass 0xffffff8040d2cc83 0xffffff8040d2cca0 instead. >=20 > I will build kernel with DDB tomorrow, install it on some servers and wai= t for the panic occurs. Ok. Did you checked for such things as rootkits ? --QgvTbcZPsSS/HkXe Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkxplAQACgkQC3+MBN1Mb4jUsQCeNQ3M0fU46t1VMQL0vyYblSo8 oDAAn3WlQRDs/HffApdzE8ZCWANCaf4Y =9Nxj -----END PGP SIGNATURE----- --QgvTbcZPsSS/HkXe--