From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pekka Pietikainen Subject: host protected area fun Date: Fri, 1 Jul 2005 11:01:46 +0300 Message-ID: <20050701080146.GA2054@ee.oulu.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Return-path: Received: from ee.oulu.fi ([130.231.61.23]:11945 "EHLO ee.oulu.fi") by vger.kernel.org with ESMTP id S262772AbVGAIB4 (ORCPT ); Fri, 1 Jul 2005 04:01:56 -0400 Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Cc: linux-kernel@vger.kernel.org Possible problem documented in irc conversation below, too lazy to rewrite all that :-) Have there been some behavioural changes in this area recently? Linux happily overwriting the HPA seems to have happened between fc3 and fc4. Could be some userspace partitioning related/bios brokedness thing too I suppose? 02:04 * pp tries to figure out host protected area stuff 02:04 < pp> _apparently_ these stinkpads have a hidden partition containing windows xp etc. 02:04 < pp> which the bios protects 02:04 < pp> linux happily ignores that setting and tries to use that area as well 02:05 < pp> which works until you eg. resume from suspend and the area is locked again 02:05 < pp> which makes your box pretty unhappy 02:05 < pp> at some point the behaviour was to just ignore the extra space 02:06 < freitag> pp: i think i have machines that print at boot they ignore the host protected area 02:06 < pp> so whatever is there got nuked :-) 02:07 < pp> apparently could even be bios setup etc. on some models 02:07 < rdd> they can reinstall XP from there too (if it's not nuked) 02:07 < pp> yea 02:08 < pp> basically my laptop went into a state where in "normal" setting it worked until resuming from suspend, after which it got io errors 02:08 < pp> in "secure" mode (no OS access to hpa) the box refused to boot at all 02:08 < pp> and in "disabled" it's totally happy 02:08 < pp> but the fancy ibm stuff disappeared 02:09 < pp> oh well 02:09 < freitag> tell linux-ide :-)