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 1Qqi9z-0006K8-Uh for garchives@archives.gentoo.org; Tue, 09 Aug 2011 08:59:40 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id DF0D921C22C; Tue, 9 Aug 2011 08:59:27 +0000 (UTC) Received: from smtp.alltele.net (m1.alltele.net [85.30.0.4]) by pigeon.gentoo.org (Postfix) with ESMTP id 971E721C1E9 for ; Tue, 9 Aug 2011 08:58:25 +0000 (UTC) Received: from [192.168.1.100] ([87.227.57.71]) by smtp.alltele.net (IceWarp 10.3.2) with ESMTP id SQP14124 for ; Tue, 09 Aug 2011 10:58:24 +0200 Message-ID: <4E40F6AF.7020409@coolmail.se> Date: Tue, 09 Aug 2011 10:58:23 +0200 From: pk User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110724 Lightning/1.0b3pre Thunderbird/3.1.10 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] IOMMU and other oddities... References: <20110809053234.GA3081@solfire> In-Reply-To: <20110809053234.GA3081@solfire> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=3.77 required=7.00 tests=LOCALPART_IN_SUBJECT=1.56,RATWARE_RCVD_BONUS_SPC=1.00,MR_NOT_ATTRIBUTED_IP=0.20,NO_RDNS2=0.01,MR_DIFF_MID=1.00 version=3.2.5 X-Spam-Level: *** X-Spam-Checker-Version: SpamAssassin 3.2.5 (1.1) on smtp.alltele.net X-CTCH: RefID="str=0001.0A0B0209.4E40F6B0.0256,ss=1,re=0.000,fgs=0"; Spam="Unknown"; VOD="Unknown" X-Archives-Salt: X-Archives-Hash: 9374ac032ac694095c45258187776975 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