From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753803Ab2JUAGf (ORCPT ); Sat, 20 Oct 2012 20:06:35 -0400 Received: from mail-pa0-f46.google.com ([209.85.220.46]:38791 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753296Ab2JUAGe (ORCPT ); Sat, 20 Oct 2012 20:06:34 -0400 Date: Sat, 20 Oct 2012 17:06:29 -0700 From: Tom Rini To: Jacob Shin , linux-kernel@vger.kernel.org, "H. Peter Anvin" Cc: stable@kernel.org Subject: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot Message-ID: <20121021000629.GA2835@bill-the-cat> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello all, I grabbed 3.7-rc2 and found the following on boot: PANIC: early exception 08 rip 246:10 error 81441d7f cr2 0 A git bisect says that this problems came from: 1bbbbe779aabe1f0768c2bf8f8c0a5583679b54a is the first bad commit commit 1bbbbe779aabe1f0768c2bf8f8c0a5583679b54a Author: Jacob Shin Date: Thu Oct 20 16:15:26 2011 -0500 x86: Exclude E820_RESERVED regions and memory holes above 4 GB from direct mapping. On systems with very large memory (1 TB in our case), BIOS may report a reserved region or a hole in the E820 map, even above the 4 GB range. Exclude these from the direct mapping. The box in question is an Asus motherboard with AMD Phenom(tm) II X6 1100T and 16GB memory. Happy to provide any other information required. -- Tom