From patchwork Wed Oct 26 23:19:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Corbet X-Patchwork-Id: 79562 Delivered-To: patch@linaro.org Received: by 10.140.97.247 with SMTP id m110csp331371qge; Wed, 26 Oct 2016 16:23:01 -0700 (PDT) X-Received: by 10.99.38.66 with SMTP id m63mr7034043pgm.83.1477524180960; Wed, 26 Oct 2016 16:23:00 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e5si4994075pgg.122.2016.10.26.16.23.00; Wed, 26 Oct 2016 16:23:00 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942113AbcJZXWw (ORCPT + 27 others); Wed, 26 Oct 2016 19:22:52 -0400 Received: from tex.lwn.net ([70.33.254.29]:33776 "EHLO vena.lwn.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935068AbcJZXUI (ORCPT ); Wed, 26 Oct 2016 19:20:08 -0400 Received: from tpad.lwn.net (localhost.localdomain [127.0.0.1]) by vena.lwn.net (Postfix) with ESMTP id 6842B1540043; Wed, 26 Oct 2016 17:20:07 -0600 (MDT) From: Jonathan Corbet To: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jani Nikula , Mauro Carvalho Chehab , Jonathan Corbet Subject: [PATCH 04/11] docs: Get rid of the badRAM guide Date: Wed, 26 Oct 2016 17:19:32 -0600 Message-Id: <1477523979-5837-5-git-send-email-corbet@lwn.net> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477523979-5837-1-git-send-email-corbet@lwn.net> References: <1477523979-5837-1-git-send-email-corbet@lwn.net> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The last release of this tool was for 2.6.28; it's hard to see how it has any relevance to current kernels. Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/bad-memory.rst | 50 -------------------------------- Documentation/admin-guide/index.rst | 1 - 2 files changed, 51 deletions(-) delete mode 100644 Documentation/admin-guide/bad-memory.rst -- 2.7.4 diff --git a/Documentation/admin-guide/bad-memory.rst b/Documentation/admin-guide/bad-memory.rst deleted file mode 100644 index a5c0e25e496f..000000000000 --- a/Documentation/admin-guide/bad-memory.rst +++ /dev/null @@ -1,50 +0,0 @@ -How to deal with bad memory e.g. reported by memtest86+ ? -========================================================= - -March 2008 -Jan-Simon Moeller, dl9pf@gmx.de - - - -There are three possibilities I know of: - -1) Reinsert/swap the memory modules - -2) Buy new modules (best!) or try to exchange the memory - if you have spare-parts - -3) Use BadRAM or memmap - -This Howto is about number 3) . - - -BadRAM -###### - -BadRAM is the actively developed and available as kernel-patch -here: http://rick.vanrein.org/linux/badram/ - -For more details see the BadRAM documentation. - -memmap -###### - -memmap is already in the kernel and usable as kernel-parameter at -boot-time. Its syntax is slightly strange and you may need to -calculate the values by yourself! - -Syntax to exclude a memory area (see admin-guide/kernel-parameters.rst for details):: - - memmap=$
- -Example: memtest86+ reported here errors at address 0x18691458, 0x18698424 and -some others. All had 0x1869xxxx in common, so I chose a pattern of -0x18690000,0xffff0000. - -With the numbers of the example above:: - - memmap=64K$0x18690000 - -or:: - - memmap=0x10000$0x18690000 diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst index 2ce2bf02824b..d737ae71efc6 100644 --- a/Documentation/admin-guide/index.rst +++ b/Documentation/admin-guide/index.rst @@ -58,5 +58,4 @@ configure specific aspects of kernel behavior to your liking. binfmt-misc mono java - bad-memory basic-profiling