From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1QqkPV-0005gJ-3q for garchives@archives.gentoo.org; Tue, 09 Aug 2011 11:23:51 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 1761F21C263; Tue, 9 Aug 2011 11:23:34 +0000 (UTC) Received: from mailout-de.gmx.net (mailout-de.gmx.net [213.165.64.23]) by pigeon.gentoo.org (Postfix) with SMTP id 748B821C047 for ; Tue, 9 Aug 2011 11:22:39 +0000 (UTC) Received: (qmail invoked by alias); 09 Aug 2011 11:22:38 -0000 Received: from p54851B58.dip0.t-ipconnect.de (EHLO gmx.net) [84.133.27.88] by mail.gmx.net (mp039) with SMTP; 09 Aug 2011 13:22:38 +0200 X-Authenticated: #20088476 X-Provags-ID: V01U2FsdGVkX1+NGiRq9QCNvsbN86INuMe5sJbTUOAUwykfnmOAOf Ib/RclXllsoZF3 Received: by gmx.net (nbSMTP-1.00) for uid 1001 Meino.Cramer@gmx.de; Tue, 9 Aug 2011 13:22:38 +0200 (CEST) Date: Tue, 9 Aug 2011 13:22:38 +0200 From: meino.cramer@gmx.de To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] IOMMU and other oddities... Message-ID: <20110809112238.GA6434@solfire> References: <20110809053234.GA3081@solfire> <4E40F6AF.7020409@coolmail.se> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4E40F6AF.7020409@coolmail.se> User-Agent: mutt-ng/devel-r804 (Linux) X-Y-GMX-Trusted: 0 X-Archives-Salt: X-Archives-Hash: 301df1bd977229d35d6a606fc79ccada pk [11-08-09 13:11]: > On 2011-08-09 07:32, meino.cramer@gmx.de wrote: > > > Why does it look for an AGP-bridge??? > > Not that it helps but, I also have an AMD system (AM3+, FX990/SB950) and > I get the "No AGP bridge found" message too... > > > The dmesg says I should switch on IOMMU, which I did. But that does > > not impress the kernel that much since it still recommends to switch > > on IOMMU. > > > > What did I wrong here ? > > I can make the IOMMU message disappear in my system with a "bios" setting... > > Two things that I can think of: > 1. Check your bios to make sure it does enable the IOMMU (i.e. was the > setting saved?). > 2. Update your bios to see if it helps (but make sure you follow any > instructions from the m/b manufacturer). > > > I want to fix issues, which may be reported by dmesg, so: > > Where can I find explanations to the dmesg output? > > Don't know if there is such a place to "decode" the dmesg output but if > you wish to know more about these particular messages (well the > "terminology" and the technical explanation): > https://secure.wikimedia.org/wikipedia/en/wiki/Iommu > > https://secure.wikimedia.org/wikipedia/en/wiki/Aperture_%28computer_memory%29 > > Some more digging (but I'm not sure it would help you)... > http://bogdan.org.ua/2009/09/30/iommu-this-costs-you-64-mb-of-ram.html > > Best regards / MfG > > Peter K > Hi Peter, thanks for the links and your explanations! :) ...will see, what I can do... Keep hacking! ;) Best regards, mcc