From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: suspend to ram problem Date: Wed, 6 Feb 2008 23:43:28 +0100 Message-ID: <20080206224328.GB1630@elf.ucw.cz> References: <47A5C399.7010405@free.fr> <47A6B758.7070405@free.fr> <47A8EB02.90502@free.fr> <200802060020.12289.rjw@sisk.pl> <47AA3763.7000106@free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from gprs189-60.eurotel.cz ([160.218.189.60]:56697 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757617AbYBFWnK (ORCPT ); Wed, 6 Feb 2008 17:43:10 -0500 Content-Disposition: inline In-Reply-To: <47AA3763.7000106@free.fr> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: matthieu castet Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, pm list On Wed 2008-02-06 23:40:35, matthieu castet wrote: > Rafael J. Wysocki wrote: >> On Wednesday, 6 of February 2008, matthieu castet wrote: >>> Hi, >>> >>> matthieu castet wrote: >>>> matthieu castet wrote: >>>>> Pavel Machek wrote: >>>>>> Hmm, maybe I know where problem could be. Try >>>>>> >>>>>> movl $(wakeup_stack - wakeup_code), %esp # >>>>>> Private stack is needed for ASUS bo\ >>>>>> >>>>>> instead of existing stack setup. That helped on one of my test-boxes >>>>> Thanks, I will try that. >>>>> Because clearing the flags imply pop/push in the stack it could be the >>>>> problem >>>> That doesn't help : it still crash in pushl $0. >>>> >>> All stack stuff in wakeup_code crash for me. >>> I tried to change the stack position, make sure upper bit of %esp are >>> clear, ... nothing work. >>> What's are strange is that according to my x86 manual, in real mode the >>> failure can only happen if the stack wrap which is not the case here. >>> Any x86 guru advice ? >>> >>> If I remove stack access (remove clearing flag stuff, not call to video >>> stuff) the resume works. >> >> Hm, can you place a "pushl %eax; popl %eax;" in place of the removed code and >> see if that breaks? > Yes that also break. Hmm, and what kind of machine is that? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html