From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756428AbYB0SPV (ORCPT ); Wed, 27 Feb 2008 13:15:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754161AbYB0SPJ (ORCPT ); Wed, 27 Feb 2008 13:15:09 -0500 Received: from www.tglx.de ([62.245.132.106]:52742 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751843AbYB0SPI (ORCPT ); Wed, 27 Feb 2008 13:15:08 -0500 Date: Wed, 27 Feb 2008 19:14:40 +0100 (CET) From: Thomas Gleixner To: Roland Dreier cc: linux-kernel@vger.kernel.org, Ingo Molnar , Thomas Mingarelli Subject: Re: hpwdt oops in clflush_cache_range In-Reply-To: Message-ID: References: User-Agent: Alpine 1.00 (LFD 882 2007-12-20) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 27 Feb 2008, Roland Dreier wrote: > With an up-to-date git tree (head 7704a8b6) I'm seeing the oops below > when the hpwdt driver gets loaded during boot on an HP DL380 system. > I don't think I've seen any previous reports of this, and I guess it > doesn't really count as a regression since the hpwdt driver was only > added after 2.6.25-rc2. > > I haven't tried to debug this at all yet but any guidance about what > information is useful for what looks to be an issue with c_p_a would > be appreciated. > > BUG: unable to handle kernel paging request at ffffc20001a08000 > IP: [] clflush_cache_range+0xc/0x25 > PGD 1bf80e067 PUD 1bf80f067 PMD 1bb1ab067 PTE 80000047000ee17b -------------------------------------------------^^^^^^^^^^^^^^^^ The physical address looks strange: 0x47000EE000 Can you provide a full boot log please ? Thanks, tglx