From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 17 Aug 2001 11:57:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 17 Aug 2001 11:57:41 -0400 Received: from mail.internet-factory.de ([195.122.142.5]:27790 "EHLO mail.internet-factory.de") by vger.kernel.org with ESMTP id ; Fri, 17 Aug 2001 11:57:32 -0400 To: linux-kernel@vger.kernel.org Path: not-for-mail From: Holger Lubitz Newsgroups: lists.linux.kernel Subject: Re: Encrypted Swap Date: Fri, 17 Aug 2001 17:57:45 +0200 Organization: Internet Factory AG Message-ID: <3B7D3EF9.4CEABF2C@internet-factory.de> In-Reply-To: <3B7D2F3C.A4687E25@internet-factory.de> NNTP-Posting-Host: bastille.internet-factory.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: darkstar.internet-factory.de 998063865 4449 195.122.142.158 (17 Aug 2001 15:57:45 GMT) X-Complaints-To: usenet@internet-factory.de NNTP-Posting-Date: 17 Aug 2001 15:57:45 GMT X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.8-ac3 i686) X-Accept-Language: en Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "Richard B. Johnson" proclaimed: > Errrm no. All BIOS that anybody would use write all memory found when > initializing the SDRAM controller. They need to because nothing, > refresh, precharge, (or if you've got it, parity/crc) will work > until every cell is exercised. A "warm-boot" is different. However, > if you hit the reset or the power switch, nothing in RAM survives. Then this may have changed with SDRAM. However, back in my Amiga days it was pretty common to just reset the machine and rip whatever was left in the memory (DRAM). If memory serves me right, some people put in reset protection (by pointing the reset vector to some code that cleared the memory), which could be fooled by hardware reset or power cycling. Holger