Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761235AbXE1LM7 (ORCPT ); Mon, 28 May 2007 07:12:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751300AbXE1LMx (ORCPT ); Mon, 28 May 2007 07:12:53 -0400 Received: from h80ad2262.async.vt.edu ([128.173.34.98]:42208 "EHLO h80ad2262.async.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751244AbXE1LMw (ORCPT ); Mon, 28 May 2007 07:12:52 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Pekka Enberg Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: 2.6.22-rc2-mm1 - a different BUG: at mm/slab.c:777 __find_general_cachep() In-Reply-To: Your message of "Mon, 28 May 2007 13:43:12 +0300." <84144f020705280343q7e1646ar6961e7c0fa6b327f@mail.gmail.com> From: Valdis.Kletnieks@vt.edu References: <20070523004233.5ae5f6fd.akpm@linux-foundation.org> <13451.1180348036@turing-police.cc.vt.edu> <84144f020705280343q7e1646ar6961e7c0fa6b327f@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1180350764_4040P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 28 May 2007 07:12:44 -0400 Message-ID: <15652.1180350764@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1778 Lines: 47 --==_Exmh_1180350764_4040P Content-Type: text/plain; charset="us-ascii" Content-Id: <15646.1180350764.1@turing-police.cc.vt.edu> On Mon, 28 May 2007 13:43:12 +0300, Pekka Enberg said: > On 5/28/07, Valdis.Kletnieks@vt.edu wrote: > > [4294667.472000] BUG: at mm/slab.c:777 __find_general_cachep() > > [snip] > > > Any suggestions before I go doing the bisect shuffle? > > It's complaining about a kmalloc() with size zero. The warning is new > and harmless for now, so no need to bisect this (it will point you at > the mm/slab.c change by Christoph Lameter). I knew *that* part. Closer look at drivers/firmware/dmi-id.c indicates that it's likely a busticated DMI field in my BIOS - looking around at the stuff in /sys/devices/virtual/dmi/id I found that the files product_version, board_version board_asset_tag, chassis_version, and chassis_asset_tag are empty (trying to 'cat' them gets just a \n) - the other values all look sane. This looks fishy: #define ADD_DMI_ATTR(_name, _field) if (dmi_get_system_info(_field)) sys_dmi_attributes[i++] = & sys_dmi_##_name##_attr.attr; Should that be making a check that it's not pointing at a null string? --==_Exmh_1180350764_4040P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFGWrkscC3lWbTT17ARAkIdAJ4h2qL1+S/aUpxS5ER9hban8tII+wCeIuLp Td/6OgEnHThmStaqdIutk3s= =a8TY -----END PGP SIGNATURE----- --==_Exmh_1180350764_4040P-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/