Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755081Ab3GASs7 (ORCPT ); Mon, 1 Jul 2013 14:48:59 -0400 Received: from smtp05.smtpout.orange.fr ([80.12.242.127]:46072 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754802Ab3GASs6 (ORCPT ); Mon, 1 Jul 2013 14:48:58 -0400 X-Greylist: delayed 473 seconds by postgrey-1.27 at vger.kernel.org; Mon, 01 Jul 2013 14:48:57 EDT Message-ID: <51D1CD3B.80804@free.fr> Date: Mon, 01 Jul 2013 20:40:59 +0200 From: Eric Valette Reply-To: eric.valette@free.fr Organization: HOME User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130518 Icedove/17.0.5 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: memmap exclude boot command: how to check if it was indeed applied Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 643 Lines: 20 Hi, After hunting an unreproducible bug, I decided to run memtest86+ and found that only 8 byte of memory refuse to write the last two digit on the last 4GB memory stick. Memory is at 0x31db357558 So I decided to add a memmap=4K@0x000000031db35000 boot options in GRUB_CMDLINE_LINUX. But checking dmesg, I see no mention of this page being reserved. PS: CC me I'm not subscribed. -- eric -- 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/